Vega DSP223 User Manual

Model DSP-223

Tone Remote Panel

Operating Software 2.6

Technical Manual

March 2005 P.N. 803274 Rev D

ii Vega DSP-223

Table of Contents

1 General...................................................................................... 1

1.1 DSP-223 Accessories..................................................................................... 1

2 Installation ................................................................................ 2

2.1 DSP-223 Power Supply.................................................................................. 2

2.2 DSP-223 to Console Line Connection ............................................................ 2

2.3 DSP-223 to Radio Connection........................................................................ 2

2.3.1 TX Audio Connection................................................................................... 2

2.3.2 RX Audio Connection .................................................................................. 3

2.3.3 PTT Connection........................................................................................... 3

2.3.4 Monitor Connection ..................................................................................... 3

2.3.5 Radio Frequency Control............................................................................. 4

2.3.6 CTCSS Connection ..................................................................................... 4

2.4 Handset Connection ....................................................................................... 4

2.5 Digital Expansion Port .................................................................................... 4

3 Level Settings........................................................................... 5

3.1 Line Receive Level Adjust Procedure............................................................. 5

3.1.1 Revision G PCB’s with J17 .......................................................................... 5

3.2 Radio TX Level Adjust Procedure................................................................... 6

3.3 Radio RX Level Adjust Procedure .................................................................. 6

3.4 Line TX Level Adjust Procedure ..................................................................... 6

3.5 CTCSS Level (Continuous Tone coded Squelch)........................................... 6

3.6 DSP –223 Detection Frequencies .................................................................. 6

4 Programming and Operation .................................................. 7

4.1 Software Installation ....................................................................................... 7

4.2 Windows® Application Software Operation .................................................... 7

4.2.1 Select a Serial Port...................................................................................... 7

4.2.2 DSP-223 Configuration................................................................................ 8

4.2.2.1 Function Tone Mode................................................................................. 8

4.2.2.2 CTCSS Tone ............................................................................................ 8

4.2.2.3 PTT Options ............................................................................................. 8

4.2.2.4 Monitor Relay Options .............................................................................. 9

4.2.2.5 EE/Error Beeps (Rev 2.0 or higher).......................................................... 9

4.2.2.6 Line DTMF Decoder .................................................................................9

4.2.2.7 Audio Loop Back ...................................................................................... 9

4.2.2.8 Individual Function Tone Setup .............................................................. 10

4.2.2.8.1 Tone Active ...................................................................................... 10

4.2.2.8.2 Relay................................................................................................ 10

4.2.2.8.3 Relay Group..................................................................................... 10

4.2.2.8.4 Relay Duration ................................................................................. 10

4.2.2.8.5 Digital Output ................................................................................... 11

4.2.2.8.6 CTCSS Frequency and Default........................................................ 11

4.2.2.8 DIG4 Setup Button ................................................................................. 12

4.2.2.9 DIG5 Setup Button ................................................................................. 13

4.2.2.9.1 Voter/Ring Down Tone Generation .................................................. 13

Tone Remote iii

4.2.2.10 Set Gains Button .................................................................................. 13

4.2.2.11 Morse Code Station Identifier Setup..................................................... 14

4.2.2.12 Save and Load Buttons ........................................................................14

4.2.2.13 Send and Receive Configuration from DSP-223 .................................. 14

4.2.2.14 Radio TX Audio Filters.......................................................................... 15

4.2.2.15 DSP-223 Audio Block Diagram............................................................. 16

4.2.2.16 DSP-223 Frequency Response ............................................................ 16

4.3 DTMF Responder Functions......................................................................... 18

5 Theory of Operation............................................................... 19

5.1 DSP-223 Audio Input Paths.......................................................................... 19

5.2 DSP-223 Audio Output Paths ....................................................................... 19

5.3 Troubleshooting Aid...................................................................................... 19

6 Loading the DSP-223 Operational Software ........................ 20

7 Specific Radio Control........................................................... 20

8 Pin out and Jumper Settings Quick Reference Table......... 21

9 Schematics and Parts Lists .................................................. 22

9.1 PCB P/N 750561 Revisions A to E ............................................................... 22

9.2 PCB P/N 750561 Revision F ........................................................................ 23

9.3 PCB P/N 750561 Revision G........................................................................ 24

9.4 PCB P/N 750561 Revision H ........................................................................ 25

10 Warranty, Service, Repair, and Comments........................ 26

11 DSP-223 Specifications ....................................................... 27

Table of Figures

Figure 1 DB25 Rear Connector Pin-out........................................................................... 2

Figure 2 Line Connector Pin-out ..................................................................................... 2

Figure 3 6 Pin Radio Connector Pin-out.......................................................................... 3

Figure 4 Windows Programming Main Screen ................................................................ 7

Figure 5 Serial Communications Port Screen ................................................................. 7

Figure 6 Digital Output Chart......................................................................................... 11

Figure 7 CTCSS Selection Chart .................................................................................. 12

Figure 8 Digital 4 Setup Screen .................................................................................... 12

Figure 9 Digital 5 Setup Screen .................................................................................... 13

Figure 10 Gain Settings................................................................................................. 13

Figure 11 Morse Code Encoder Setup Screen.............................................................. 14

Figure 12 TX Audio Parameters Screen........................................................................ 15

Figure 13 Software Audio Path Block Diagram ............................................................. 16

Figure 14 Tx Frequency Response With No Additional Filtering ................................... 16

Figure 15 Tx Frequency Response With 3.5KHz Low Pass Filter................................. 17

Figure 16 Tx Frequency Response With 3.5KHz Filter and Pre-Emphasis ................... 17

Tone Remote 1

1 General

Unless noted, this manual refers to DSP-223 operating software 2.6.

The VegaDSP-223 tone-remote adapter provides remote control of two-way-radio base stations using
any Vega tone remote consoles. The DSP-223 is also compatible with other consoles using the industry­standard sequential tone-keying format.

The DSP-223 connects to the tone remote control console(s) using any voice-grade transmission medium
such as a microwave link, a leased telephone line, or a twisted-pair 600-ohm line.
All DSP-223s are capable of decoding the PTT (push-to-talk/transmitter-on) tone sequence and the voice­plus-tone signals during transmission. Control tones in the voice-plus-tone signal are filtered from the
transmitted voice. All models are prepared for jumper-plug conversion from two-wire-line operation to
four-wire-line operation. In the four-wire mode, the panels are full duplex capable.

The DSP-223 provides the following features:

PTT Relay
Monitor Relay
99-digit display
PTT, Monitor, and Power LED indications
F1 and F2 Relays (programmable to any function tone or Revert to F1)
6 digital outputs for channel selection, completely programmable per function tone
CTCSS generation (64 frequencies)
Hardware and software gain control
Local handset port for monitoring activity and transmission back to base or to radio
Front panel test points and level set potentiometers
RS-232C port on front panel for configuration via Windows application
Two PTT modes and three monitor modes
Eight selectable PTT frequencies
Ability to pass-through to a second tone adapter with 400ms built in delay line
Relays can be placed in any of four groups for separation of function
Single Function tone recognition (16 function tones)
Dual function tone recognition (100 function tones)
Morse Code Encoder for Automatic station identification
Automatic Gain Control
Function Tone lock-out
RX Audio Squelch
Voter Status Tone
Alarm Beeps
Pre-Emphasis

3.5kHz Low Pass Filter

All audio inputs and outputs are transient protected.

The DSP-223 line transformers are not designed to operate on lines carrying direct current. If a DC
voltage is on the line, isolate with external capacitors. If the line termination must conduct direct current,
install a 600:600-ohm transformer designed for the current involved.

1.1 DSP-223 Accessories

Several optional accessories are available for the DSP-223.
DSP223PRG – Programming Kit, includes cable and diskette with software
DSP223RACK – 1 unit high rack shelf to hold up to two DSP-223 units
0101239 – DSP-223/Relm Serial Interface Kit
650373 – DSP-223 DB25 Relm Radio Cable
301896000 – DSP-223/Kenwood x150/x180 Serial Interface Kit
2490248 – Black Handset

2 Vega DSP-223

2 Installation

2.1 DSP-223 Power Supply

The DSP-223 requires a 12 to
16 volt DC, 500 mA, of clean
power. Two connectors are
provided to connect the unit to
power. The first is a 2.5mm
plug receptacle on the rear left
of the unit. The positive
terminal is the center
conductor. The second power
connection option is the DB25
connector. Figure 1 shows the
pin out of this connector.
Connect an external 12 to 16
volt DC supply with the
positive connected to Pin 20
and the Ground connected to
Pin 7.

13 12 11 10 9 8 7 6 5 4 3 2 1

25 24 23 22 21 20 19 18 17 16 15 14

DB25 Rear Panel

Connector

Figure 1 DB25 Rear Connector Pin-out

1-PTT NC 20-+POWER
14-PTT NO 8-DIG 0
2-PTT COM 21-DIG 1
15-MON NC 9-DIG 2
3-MON NO 22-DIG 3
16-MON COM 10-DIG 4
4-F1 NC 23-DIG 5
17-F1 NO 11-CTCSS
5-F1 COM 24-RX+
18-F2 NC 12-RX­6-F2 NO 25-TX+
19-F2 COM 13-TX­7-GROUND

2.2 DSP-223 to Console Line Connection

The line connector is the right most connector on the rear of the DSP-223. Connect the two-wire leased
line to pins 4 and 5 of the RJ-45 modular
connector, making sure that J20 and J21 are
set to position A. Four-wire operation
requires J20 and J21 be set to position B and
connect the outgoing line to pins 4 and 5, and
the receive pins to 3 and 6.

Note: Pins 4&5 of the Line connector are
the RX audio from the radio. They are
transmitted back down the line to the
console. Pins 3&6 of the Line connector
are inputs from the console and the audio
present on this pair will be sent to the radio.

There are several jumper selections that must be made for the line connection. Set the jumpers
according to your connection requirements.

2 Wire / 4 Wire Selection: J20 J21 RX Termination: J19

2 Wire A A 600 Ohms A
4 Wire B B 10k Ohms B

The RX termination should be placed in position “A” on J19 for a single unit at the end of a line. If
multiple units are connected in parallel, only one unit should have the RX Termination jumper in the “A”
position. Set J19 to “B” position for 2-wire operation.

1 2 3 4 5 6 7 8 1)

Figure 2 Line Connector Pin-out

2) Voter Input

RX +

3)

4) TX +/ (RX + 2W)

TX -/ (RX - 2W)

5)

RX -

6)

7)

8) Ground

Connector View

2.3 DSP-223 to Radio Connection

2.3.1 TX Audio Connection

The DSP-223 has a number of options when connecting it to the radio. Set the jumpers according to the
method outlined in your radio’s owner manual.

Tone Remote 3

Connection Type: J14 J15 J22 J23

Balanced 600 Ohm: B B B B
Single Ended Low-Impedance: A A A A

If the microphone input of the radio is high-impedance, shielded
cable is recommended. If the radio has a high-level microphone
input, move J26 to the B position, otherwise J26 should stay in
the A position.

The balanced 600-Ohm option is only available on the DB25
connector on the rear panel; see Figure 1 for the pin-out. If the
TX Audio is set to single ended mode, it can be used from the
TX+ pin on the DB25 or can be accessed on the smaller 6-pin
rear connector. The 6 Pin connector pin-out appears in Figure 3.

2.3.2 RX Audio Connection

Set the following jumpers for the type of receive audio required:

Output Type: J24 J25 J27

Balanced 600 Ohm: B B B
Single Ended: A A A

Receive Input Impedance: J12 J13

8 Ohms A B (for a speaker output)
600-Ohm B A
10k Ohm B B
Connect the radio receiver audio output if balanced to pins 12 and 24 of the rear panel DB25. If the
receive audio is single ended pin 24 of the rear DB25 or pin 4 of the rear 6 pin connector can be used.
The audio source must be after the squelch circuit, to prevent sending continuous noise to the remote
console. If a high-impedance point in the receiver is used, shielded cable is recommended.

1 2 3 4 5 6

1) Ground 2) PTT-NO

3) PTT-COM 4) Radio RX

5) Radio TX 6) Power

6 Pin Rear Connector Pinout

Figure 3 6 Pin Radio Connector Pin-out

Note: When the speaker output is used, the radio volume control will affect the audio levels of the

DSP-223.

2.3.3 PTT Connection

Connect the radio PTT circuit to the PTT relay contact terminals. Connections on the DB25 or the 6 pin
connectors may be used. Usually the common of the relay contact switch is grounded and the normally
open contact connects to the PTT input. It is also possible to ground the common of the relay internal to
the unit by bridging the pads of JP2 with wire and soldered closed.

2.3.4 Monitor Connection

Connect the radio MON circuit to the MON relay contact terminals of the DB25 connector. Usually the
common of each relay contact switch is grounded and the normally open contact connects to the MON
input. It is also possible to ground the common of the relay internal to the unit by bridging the pads of JP3
with wire and soldered closed.

4 Vega DSP-223

2.3.5 Radio Frequency Control

The DSP-223 provides two relays that may be used for radio channel control. F1 and F2 contacts may
be connected through the rear DB25 connector. Usually the common of each relay contact switch is
grounded and the normally open contact connects to the radio frequency-control terminals.

In addition to the two standard relay closures, six lines of digital I/O are available. These lines are open­collector transistor outputs. They can be programmed on a per line basis to generate any of 64
combinations. A programmed option is also available that does not change the digital I/O.

Each line is active low and may be jumper selected to pull up to either +5v or the power supply voltage
(minimum +12v). Jumper J16 is used to select the pull up voltage. The A position pulls to the power
supply value and B pulls up to +5v.

Refer to Section 4.2.2.9.5 Digital Output for programming the digital outputs.

2.3.6 CTCSS Connection

The DSP-223 is designed to generate a full range of CTCSS frequencies. Each function tone can be
assigned its own CTCSS frequency for PTT operation or a number of CTCSS tones can be set using
different function tones. A single ended, capacitor coupled, low impedance output is available on pin 11
of the rear panel DB25 connector.

2.4 Handset Connection

The Telex Handset (P/N 249248) may be connected to the DSP-223 to monitor receive and transmit
audio. When the handset PTT switch is pressed, the DSP-223 will be key up the radio on the existing
frequency and the handset microphone audio will be transmitted.

Pressing the PTT-IC button on the front panel provides an intercom connection between the DSP-223
and the tone remote console.

2.5 Digital Expansion Port

The Digital Expansion Port on the rear panel of the DSP-223 provides a second serial communications
connection for use in controlling various base station radios. A plug-in serial add-on PCB must be
installed to enable this connector. This port is configured as a function of the specific application and the
data is restricted to the control of specific radios. It is not intended as a general communications port to a
PC.

Tone Remote 5

3 Level Settings

Once the unit is connected into the system, the level potentiometers can be set as shown in Table 1.

3.1 Line Receive Level Adjust Procedure

The line RX level is the first level that must be set because all of the tone decoding is based on this level.
Connect an Oscilloscope, RMS voltmeter, or dBm meter to Ground (TP-12) and Line RX audio (TP-2) test
points on the front of the
DSP-223.

Inject the known highest
signal level into the line
receive circuitry. An
external generator or a
console can generate
this with a test tone
capability. Using Table
1, find the value of the
injected signal level in
the left most column
(Actual RX Input (dBm)).

In the case of the DSP­223 being connected as
a standard tone remote,
the MAX input +10dBm
column shows the level
to adjust the RX Line
Potentiometer to. This
assumes that the
standard +10dBm Guard
Tone will be used.

The DSP-223 must be
tuned to allow this
+10dBm signal to be
decoded without
overdriving the inputs
(max 3.5Vp-p) of the
Analog to Digital
Converter (ADC). On
the row of the injected
signal level, find the
column that matches the
measurement units of
the device attached to
the Line RX level test points on the front panel. Adjust the Line RX Potentiometer (R68) until it is close to
the value listed in the table. This will allow the unit to work over its entire range without saturating the
ADC. Note that this measurement is a signal level measurement of the voltage that is supplied to the
ADC used by the DSP to decode the various required tones.

Actu al
RX
Input (dBm)

RX POT Setup for Vega DSP Based Products

Set RX To:

Vrms Vpp dBm Vrms Vpp dBm dBm Vpp Vrms

10 1.13 3.20 3 10 6.90 2.44

9 1.02 2.88 2 9 6.25 2.21
8 0.92 2.60 1 8 5.60 1.98
7 0.79 2.24 0 7 5.00 1.77
6 0.74 2.08 -1 6 4.50 1.59
5 0.68 1.92 -2 5 4.00 1.41
4 0.62 1.76 -3 4 3.60 1.27
3 0.55 1.56 -4 3 3.20 1.13
2 0.51 1.44 -5 2 2.88 1.02
1 0.40 1.14 -6 1 2.60 0.92
0 0.36 1.02 -7 1.13 3.20 3 0 2.24 0.79

-1 0.33 0.92 -8 1.02 2.88 2 -1 2.08 0.74

-2 0.29 0.81 -9 0.92 2.60 1 -2 1.92 0.68

-3 0.26 0.74 -10 0.79 2.24 0 -3 1.76 0.62

-4 0.22 0.63 -11 0.74 2.08 -1 -4 1.56 0.55

-5 0.20 0.56 -12 0.68 1.92 -2 -5 1.44 0.51

-6 0.18 0.52 -13 0.62 1.76 -3 -6 1.14 0.40

-7 0.16 0.46 -14 0.55 1.56 -4 -7 1.02 0.36

-8 0.14 0.41 -15 0.51 1.44 -5 -8 0.92 0.33

-9 0.13 0.37 -16 0.40 1.14 -6 -9 0.81 0.29

-10 0.12 0.34 -17 0.36 1.02 -7 -10 0.74 0.26

-11 0.11 0.30 -18 0.33 0.92 -8 -11 0.63 0.22

-12 0.10 0.28 -19 0.29 0.81 -9 -12 0.56 0.20

-13 0.09 0.25 -20 0.26 0.74 -10 -13 0.52 0.18

-14 0.22 0.63 -11 -14 0.46 0.16

-15 0.20 0.56 -12 -15 0.41 0.14

-16 0.18 0.52 -13 -16 0.37 0.13

-17 0.16 0.46 -14 -17 0.34 0.12

-18 0.14 0.41 -15 -18 0.30 0.11

-19 0.13 0.37 -16 -19 0.28 0.10

-20 0.12 0.34 -17 -20 0.25 0.09

Max Input 0dBm

Set RX To:

Direct CrossoverMax Input +10dBm

dBm to Volts Table

Table Usage:

1) Place a known signal level into the RX terminals of the Vega device being setup.

2) Determine the maximum signal level that the device will see. This table supports +10 and 0 dBm

3) Using the values from #1 and #2, Lookup #1 in the left column and move to the grouping for #2

4) Set the RX pot for the value in the table

Table 1

3.1.1 Revision G PCB’s with J17

Starting with PCB Revision G, jumper J17 has been added to provide a wider decode range. With J17 in
the “A” position the DSP223 will perform like previous versions. When J17 is in the “B” position, a 6dbm
gain is added to the input of the ADC after PTT is engaged.

Setup is different with J17 in “B”. When the DSP223 is in PTT, adjust the Line RX Potentiometer (R68) for
–15dbm at Line RX audio (TP-2) test point.

6 Vega DSP-223

3.2 Radio TX Level Adjust Procedure

Due to the large range of input requirements for the radios that can be connected to the DSP-223, there
is not a prescribed way of setting the Radio TX levels. Radio TX test points (TP-5 & TP-6) on the front
panel of the DSP-223 provide a location to measure the actual value being placed onto the radio TX
inputs. The Radio TX gain potentiometer (R7) can be used to adjust these levels. Note if the unit is
placed into single ended mode with jumpers J14, 15, 22, and 23 the Radio TX+ should be measured with
respect to ground. The user also has the option of placing J26 into the “A” position to decrease the
output of the TX line by a factor of 10. The final adjustment should allow for undistorted audio to be
transmitted for the full range of transmission levels at the desired deviation. Soldering JP6 together will
increase the radio TX output adjustment range.

3.3 Radio RX Level Adjust Procedure

The Radio RX level input to the DSP-223’s ADC can be measured by connecting an Oscilloscope or
Meter to the ground and Radio RX test jack (TP-3) on the front of the unit. The maximum expected
receive level should be set so that the measurement at the test points is approximately 3.4 volts peak-to­peak or 1.2 volts RMS. This insures that the receive audio from the radio will not overdrive the input
circuitry of the DSP-223. The usage of Table 1 can help facilitate this by following the directions for
setting the Line RX levels. If the radio will not be generating a level above 0dBm, the 5-7 columns of the
table can be used with a known input value to set the maximum level seen by the ADC. If the radio max
level output will be below 0 dBm the Radio RX (R98) gain can be set higher to accommodate this.

3.4 Line TX Level Adjust Procedure

The Line TX level is the last item that should be adjusted. With the unit connected to the 600 Ohm line,
connect an oscilloscope, meter reading true RMS, or a meter with an output in dBm to the Line TX test
points (TP-7 & TP-8) on the front of the DSP-223. There are three ways to generate the required test
tone for setting the levels. The easiest is to “double click” the IC PTT button on the front panel. A 1­minute 0dBm test tone will be sent on the Line and Radio TX lines. Pressing the IC PTT button again
during the tone output will turn off the output. The second option, with the receive levels already set and
a console capable of generating DTMF tones onto the Line RX pair, press “*0#8”. A 15 second, 1kHz,
0dBm tone will be placed on the TX line pair. The third method to generate the tone is to move the test
jumper, J11 to the “B” position. As long as the test jumper is in the “B” position, a 0dBm 1kHz tone will be
placed on the TX line pair. This does require opening the case. Adjust the Line TX Potentiometer (R12)
until the measured voltage is 2.2 Volts peak-to-peak, 0.77 volts RMS, or 0dBm. Soldering JP7 together
will increase the Line TX output adjustment range.

3.5 CTCSS Level (Continuous Tone coded Squelch)

The CTCSS Level can be measured by connecting an oscilloscope or RMS meter to the ground and
CTCSS test point (TP-13) on the front of the DSP-223. With the radio connected to the CTCSS output,
have the remote console key up so that CTCSS is present. Adjust the CTCSS Potentiometer (R149) until
the level is as desired.

3.6 DSP –223 Detection Frequencies

The DSP-223 has been factory-tuned to the following frequencies. The user of the DSP-223 has no
ability to change the detection frequencies as they are coded into the software. However any actual
function or output can be made to work with any existing programmed frequency. Please consult the
factory for special requirements for frequency selections.

Guard tone/PTT Tone: 2175 Hz
MON Function Tone: 2050 Hz
Frequency Select Function Tones (where used)

F1: 1950 Hz F5: 1550 Hz F9: 1150 Hz F13: 750 Hz
F2: 1850 Hz F6: 1450 Hz F10: 1050 Hz F14: 650 Hz
F3: 1750 Hz F7: 1350 Hz F11: 950 Hz F15: 550 Hz
F4: 1650 Hz F8: 1250 Hz F12: 850 Hz F16: 450 Hz

Tone Remote 7

4 Programming and Operation

All programming for the DSP-223 is through an RS-232C serial port located on the front panel of the unit.
Programming kit (P/N DSP223PRG) may be purchased separately from the DSP-223 and installed on a
Windows 95 or newer computer. The latest DSP-223 operating software and Windows® application may
also be down loaded from www.vega-signaling.com/dspsoftware.htm

4.1 Software Installation

The Windows®
application file is
included on the

VEGA Product
Information CD

provided with the
DSP-223.
Launch the CD and
click on Firmware
– then click on
DSP-223. Follow
the instructions for
saving the file to
the PC. When the
application starts,
an opening screen
as shown in Figure
4 should appear.

Figure 4 Windows Programming Main Screen

4.2 Windows® Application Software Operation

4.2.1 Select a Serial Port

Clicking Com Port on the main menu screen opens the dialog box
shown in Figure 5. Select either Com1 or Com2 and then click OK to
close the dialog box. The Windows® application will set the serial port
configuration. A 9 pin serial cable is provided to connect the DSP-223
and the PC.

NOTE: The selected port is not saved and will default to Com1

each time the software is run.

Figure 5 Serial Communications Port Screen

8 Vega DSP-223

4.2.2 DSP-223 Configuration

Each button and programming field is described in the sections that follow.

4.2.2.1 Function Tone Mode

In the upper left corner is a selection for single or dual function tone mode. Single function tone mode
requires that the controlling console generate its Guard tone and then a single 40ms function tone. Dual
function tone mode requires that the controlling console generate the Guard tone and then two
consecutive function tones, which are then combined to form a 00-99 function tone. The standard
function tones and their frequencies are shown in the following table.

Function Tone

Number

F1 1950 F9 1150
F2 1850 F10 1050
F3 1750 F11 950
F4 1650 F12 850
F5 1550 F13 750
F6 1450 F14 650
F7 1350 F15 550
F8 1250 F16 450

Frequency

(Hz)

Function Tone

Number

Frequency

(Hz)

Dual function tones use tones F1-F10 and construct the final function tone value by combining the first
received tone as the tens digit and the second received tone as the ones digit. F10 is used as a zero.
For example: Function tone 9 would be transmitted as F10-F9, Function tone 43 would be F4-F3, and so
forth.

It is very important that DSP-223 be programmed for the type of signaling that is being sent from the
controlling consoles. It is possible to put the unit into the dual tone mode and send single tones and have
it recognize them correctly. This mode is more prone to errors however. The best way to make this work
is to make certain that no tones are sent for 40ms after the first function tone is sent so that a no tone can
be decoded. If the 2175 hold tone, or other audio is present, the DSP-223 will attempt to decode this as
the second half of the dual function tone.

The DSP-223 will also error beep back to the console if it was unable to decode a function sequence from
the console. This consists of a short sequence of 3-4 beeps.

Selecting single or dual function tone mode will set the number of function tones that can be programmed
by scrolling in the data entry table between 16 and 100 respectively.

4.2.2.2 CTCSS Tone

Two options are provided to set the CTCSS operation. PTT Only sets the CTCSS generator active during
PTT detection only. Always On sets the CTCSS tone generator active at all times regardless of the PTT
status.

4.2.2.3 PTT Options

The PTT Options Section configures the DSP-223 while PTT is active. These options control the PTT
relay, R1 and R2 relays with respect to PTT, the received console PTT frequency as well as the PTT
mode.

PTT Frequency selects the Hold tone frequency received from the console. The selectable frequencies
are:

2100 Hz 2325 Hz
2155 Hz 2600 Hz
2175 Hz 2800 Hz
2300 Hz 2970 Hz

Tone Remote 9

The Repeater Mode introduces a 400ms audio delay in the transmit path and removes the Hold tone
notch filter. If the unit detects a valid Guard-Function sequence, it will key up the DSP-223 immediately.
With the 400ms delay, the Guard Function is repeated out the radio interface. If the DSP-223 detects the
Hold tone, it will remain keyed up allowing one radio to serve as the link to another DSP-223.

PTT Tone Only causes the DSP-223 to not respond to a function tone and key up on detection of a valid
Hold tone. This will eliminate all options that are function tone based, but allows the DSP-223 to be used
in a most basic manner. This mode is useful for alignment when only a single tone generator is available
and not a tone remote console

Revert to R1 energizes relay R1 at the end of a PTT sequence. It will either latch it on or energize it for
the time programmed for R1 in the function tone table. For example, if F1 uses R1 and has a timer
setting of zero, the Revert to R1 option will latch the R1 relay at the end of the PTT sequence. If F1 has
R1 selected and has a timer value set for R1, then at the end of the PTT, R1 will latch on for the timer
value and then turn off. Note that all function tones that utilize R1 must have the same timer value
setting. The setup software enforces this by changing all values for R1 when one is changed.

The operation of auxiliary relays R1 and R2 as a function of PTT is selectable. When selected, R1 or R2
will close at the same time as the PTT relay. Connection to the relay contacts may be made through the
DB25 connector on the rear panel. No auxiliary relay operation may also be selected.

4.2.2.4 Monitor Relay Options

The MONITOR function provided in the DSP-223 decodes the valid tone sequence and provides a relay­contact closure to turn off the sub-audible-tone-decoder circuit in the radio receiver, allowing the console
operator to monitor the channel for other users before transmitting (required by FCC regulations on
stations equipped with continuous-tone-coded-squelch signaling). Connection to the monitor relay
contacts is provided through the DB25 connector on the rear panel. On single-user stations not equipped
with sub-audible signaling, or where the CTCSS decoders are disabled, the monitor function relay output
may be used for any purpose such as interrogation of a status-reporting system at the station site. The
monitor function may be programmed to operate in one of three modes.

The DSP-223 provides three options for the MONITOR relay action. Reset on PTT resets the monitor
relay when PTT goes active. Always Except PTT latches the MON relay at all times except when PTT is
active, whether the monitor function tone is received or not. Momentary sets the monitor relay for a
programmed period of time.

4.2.2.5 EE/Error Beeps (Rev 2.0 or higher)

The DSP223 will display “EE” on the front panel LED display and transmit error beeps to the dispatch
console when an un-decodable signal is received on the line RX. To defeat the error beep feature
uncheck the checkbox.

4.2.2.6 Line DTMF Decoder

When checked, the DSP-223 will not respond to DTMF tones sent by the console.

4.2.2.7 Audio Loop Back

When checked, the DSP-223 will route all audio received at the Line RX terminals back to the Line TX
terminals. In addition all functions continue to work within the DSP-223. This allows for a number of
consoles to be bridged together and still monitor traffic of consoles on separate bridge segments. This
function is typically used in 4-wire systems only.

10 Vega DSP-223

4.2.2.8 Individual Function Tone Setup

The middle grid area of the main screen menu is used to set the actions of the DSP-223 when a particular
function tone is received. The left most column is the function tone number. If the Function Tone Mode
is set to single function tone, tones F1-F16 may be programmed. If the Function Tone Mode is for dual
function tone, tones F00-F99 may be programmed.

4.2.2.8.1 Tone Active

The Tone Active column allows the user to lockout a function tone in the DSP223. When a box is
checked, the DSP-223 will respond to the selected function tones and operate as programmed.

4.2.2.8.2 Relay

The Relay column allows the user to select a relay closure to be associated with a particular function
tone. Selectable options are R01, R02, or no relay. Clicking the drop down list and selecting the desired
relay will program the relay be closed immediately upon receipt of the function tone.

NOTE: R01 = F1 and R02 = F2 with reference to the schematic.

4.2.2.8.3 Relay Group

The Relay Group allows the relays to be grouped into separate functions. This sets more than one relay
to be energized at any particular time by assigning separate groups. For example, if F1 has R1 selected
as its relay, and F2 has R2 selected as its relay, setting the two Relay Group numbers to the same value
will result in: when F1 is received R1 turns on and R2 turns off. In this scenario, F1 and F2’s relays are
interlocked. If F1 and F2 have different assigned relay groups, receiving F1 does not turn off R2.
Further, if a function tone has no relay selected, but has a relay group assigned that is used by another
relay group, when that function is received, all relays in that group will be turned off. This allows R1 and
R2 to be assigned to different groups and use other function tones with the same relay group to turn them
off.

4.2.2.8.4 Relay Duration

The Relay Duration sets the relay closure time. When a function tone is received, the relay closes. After
the time expires, the relay will open. The timer entry is in milli seconds (i.e. 1000 mSec = 1 second).
Setting the relay duration to 0 latches the relay on when the function tone is received.
CAUTION: two function tones with the same relay assigned cannot have the relay close for different
durations. Therefore, if the user selects R1 for F1 and F6 and set the duration for F1 to 2000ms, the F6
relay duration entry will automatically be set to 2000ms by the application software.

Tone Remote 11

4.2.2.8.5 Digital Output

Each function tone may be assigned a digital output. Valid entries are 0 – 64 that control the outputs
labeled DIG0-DIG5. This is a binary output corresponding to the value entered. The table below shows
the values and the resulting DIG0-DIG5 outputs.

An entry of 64 will cause the digital outputs to REMAIN SET at the current value and not change.

VALUE D5 D4 D3 D2 D1 D0 VALUE D5 D4 D3 D2 D1 D0

0
1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

L L L L L L
L L L L L H
L L L L H L
L L L L H H
L L L H L L
L L L H L H
L L L H H L
L L L H H H
L L H L L L
L L H L L H
L L H L H L
L L H L H H
L L H H L L
L L H H L H
L L H H H L
L L H H H H
L H L L L L
L H L L L H
L H L L H L
L H L L H H
L H L H L L
L H L H L H
L H L H H L
L H L H H H
L H H L L L
L H H L L H
L H H L H L
L H H L H H
L H H H L L
L H H H L H
L H H H H L
L H H H H H

64

Figure 6 Digital Output Chart

32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63

H L L L L L
H L L L L H
H L L L H L
H L L L H H
H L L H L L
H L L H L H
H L L H H L
H L L H H H
H L H L L L
H L H L L H
H L H L H L
H L H L H H
H L H H L L
H L H H L H
H L H H H L
H L H H H H
H H L L L L
H H L L L H
H H L L H L
H H L L H H
H H L H L L
H H L H L H
H H L H H L
H H L H H H
H H H L L L
H H H L L H
H H H L H L
H H H L H H
H H H H L L
H H H H L H
H H H H H L
H H H H H H

No Change

NOTE: Digital output bits D4 or D5 are not active if DIG4 or DIG5 are enabled

4.2.2.8.6 CTCSS Frequency and Default

This value allows the user to set the CTCSS frequency for a given function tone. When the function tone
is received, the CTCSS tone generator frequency is set to the value corresponding to the number
entered. An entry of 0 corresponds to no tone. If the Use Default CTCSS checkbox to the right of the
CTCSS Frequency box is checked (see Figure 4), the value in the CTCSS tone box is ignored and the
last selected value is generated during PTT. For example, F1 is used for all transmissions and the
default CTCSS box is checked for F1. F2-F8 has different CTCSS values programmed for them without

12 Vega DSP-223

the CTCSS default box checked. Selecting F2 and then keying up on F1 will set the CTCSS tone to the
value in the F2 row. Selecting F4 would set the CTCSS tone in the F4 row. When PTT is pressed, F1 is
the default frequency and the F4 CTCSS tone is sent. Some consoles, such as the Vega C-1610 and
6124 have a paired mode that makes this operation very simple. The CTCSS tone lookup table appears
below.

Tone # Freq. (Hz) Tone # Freq. (Hz) Tone # Freq. (Hz) Tone # Freq. (Hz)

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

33.0

35.4

36.6

37.9

39.6

44.4

47.5

49.2

51.2

53.0

54.9

56.8

58.8

63.0

67.0

69.4

17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

71.9

74.4

77.0

79.7

82.5

85.4

88.5

91.5

94.8

97.4

100.0

103.5

107.2

110.9

114.8

118.8

Figure 7 CTCSS Selection Chart

33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

123.0

127.3

131.8

136.5

141.3

146.2

151.4

156.7

159.8

162.2

165.5

167.9

171.3

173.8

177.3

179.9

49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

183.5

186.2

189.9

192.8

196.6

199.5

203.5

206.5

210.7

218.1

225.7

229.1

233.6

241.8

250.3

254.1

4.2.2.8 DIG4 Setup Button

This grouping allows the DSP-223 to mute the radio RX
input in the event of an active logic signal on Pin 10 (DIG4)
of the DB25 radio interface connector. Enable Dig4 as

COR Input must be checked to enable the feature. Active
High sets the polarity of the active logic signal. If checked,

the radio RX will be muted when an active high is present
and not muted when low.

The subset feature to polarity is the R1 and R2 check boxes.
When one of these boxes is checked, that relay will close
with the active state setting. The relay will also close from
other programmed features. If RX Mute is in an active state
when changing the programming to OFF, power to the
DSP223 will have to be cycled to reset the RX audio path.

Figure 8 Digital 4 Setup Screen

The fourth checkbox will force the DSP223 to revert to F1 programming after the entered time expires if
no PTT or a COR logic changes occur.

NOTE: Digital output bits D4 or D5 are not active if DIG4 or DIG5 are enabled

Tone Remote 13

4.2.2.9 DIG5 Setup Button

4.2.2.9.1 Voter/Ring Down Tone Generation

This grouping allows the DSP-223 to generate a user-defined tone on the Line TX pair in the event of an
active logic signal on Pin 2 of the line connector or Pin-23 (DIG5) of the DB25 connector. Enable Tone
on Dig5 Input must be checked to enable the feature. Active High sets the polarity of the active logic
signal. If checked, the programmed tone will be generated when an active high is present and no tone will
be generated when low.

The subset feature to polarity is the R1 and R2 check
boxes. When one of these boxes is checked that relay
will close with the active state setting. The relay will also
close from other programmed features.
The Tone Frequency and Level boxes specify the
frequency and the amplitude of the tone to be summed
with receive audio. Entries of 300-3000Hz are valid.
Typically a –20dBm signal is used. Some
experimentation with this value may be required to get
the proper performance.

Figure 9 Digital 5 Setup Screen

Tone On/OFF Time sets the duty cycle of the tone to create “alarm beeps” generated when DIG5 is
active. Entries of 0 to 65000ms (65000ms = 65 seconds) are the allowed programmable times. An entry
of zero (0) into the field generates a continuous tone.

NOTE: Digital output bits D4 or D5 are not active if DIG4 or DIG5 are enabled

4.2.2.10 Set Gains Button

Figure 10 at the right shows the Gain Set dialog box. A
number of gains can be controlled with this setup
application. This is not a replacement to tuning the unit
correctly with the potentiometers, but a supplement to
allow fine-tuning of the DSP-223 operation.
The Handset Sidetone Gain allows the volume of the
handset speaker to be adjusted by +/- 10 dB. The Radio
TX Gain allows adjustment of the amplitude of the audio
sent to the radio by +/- 10dB. The Line TX Gain is used
to adjust the Line TX by +/- 10dB. The CTCSS Gain
allows adjustment of the CTCSS tone level by +/- 10dB.

Figure 10 Gain Settings

14 Vega DSP-223

4.2.2.11 Morse Code Station Identifier Setup

The Morse Code configures the DSP-223 to automatically send a Morse code signal at specified times or
actions. The Auto Transmit Options section of the dialog box sets the automatic transmit operation.
The End of Each PTT will send the programmed
Morse code string at the end of each PTT sequence.
The DSP-223 waits for the end of the hold tone and
then extends the PTT time to send the Morse code
sequence. The Timer Interval option sets the DSP­223 to transmit the Morse code at specified time
intervals. The timer begins running upon setup of this
parameter either at power up or after programming. If
the radio is keyed up when the timer expires, The
DSP-223 will wait for the loss of hold tone and then
add the Morse code sequence to the end of the
transmission. Depending on the customers system,
FCC requires that station identification be transmitted
every 15 or 30 minutes of use. If the unit is not
transmitting when the timer times out, no sequence will
be sent. NOTE: The DSP-223 will not key up the
radio to send the Morse code sequence.

The Morse Code Frequency sets the frequency of the
Morse code tone. The FCC typically requires 1200Hz
unless it would cause interference. Valid entries are
from 400Hz to 2000Hz.

The Morse Code Gain sets the transmit level. Valid
values are from –40 to 0 dB. Use this value to set the deviation to the FCC required 40% level, based on
your previous hardware gain settings.

Figure 11 Morse Code Encoder Setup Screen

Morse Code String specifies the string of up to 50 alphanumeric characters to be transmitted. Standard
punctuation characters may also be entered.

NOTE: Programming the DSP-223 with a blank string disables the Morse code feature.

4.2.2.12 Save and Load Buttons

The user configuration data stored in a PC may be saved and reloaded into the Windows® application
with the Save Config and Load Config buttons. This allows the configuration to be stored on a local hard
disk or removable floppy disk.

NOTE: Configuration data MUST be compatible with the current Windows® application version

4.2.2.13 Send and Receive Configuration from DSP-223

The Send to 223 and Recv from 223 buttons are used to transfer configuration data between the DSP­223 and the PC. The serial port of the DSP-223 and the PC must be connected using the provided serial
cable.

When all of the configuration information has been entered into the Windows® application, the data may
be sent to the DSP-223 by pressing the Send to 223 button. The Recv from 223 button will retrieve the
configuration data from the DSP-223 and display the information in the Windows® application. The user
may then wish to save the data to a PC (refer to section 4.2.2.12).

If the data is transferred correctly the left decimal point will light for a few seconds and then turn off. If an
error occurs, “EE” will appear in the display. The previously saved operation parameters will be restored.

Tone Remote 15

4.2.2.14 Radio TX Audio Filters

The TX Filters button sets the options for controlling the
radio TX audio.

4.2.2.14.1 AGC

The AGC checkbox adds an Automatic Gain Control or
audio compression to the radio TX audio. AGC will help
to increase the level of low audio, and decrease the
level of loud audio, resulting in a more consistent level
being transmitted.

4.2.2.14.2 Add CTCSS to TX

When checked, Add CTCSS to TX will add the selected
CTCSS tone to the TX audio stream. The CTCSS output (pin 11 of the DB25 connector) continues to be
active. This allows CTCSS to be sent on radios that don’t have separate input pin for its injection into the
audio stream. The user will need to make certain that no high pass filter is in place in the radio to cut off
the CTCSS audio.

Figure 12 TX Audio Parameters Screen

4.2.2.14.3 Pre-Emphasize Audio

The Pre-Emphasis Audio option will add a pre-emphasis zero and pole into the radio TX audio stream.
The frequency response can be seen in Figure 16

4.2.2.14.4 3.5kHz Low Pass Filter

The 3.5kHz Low Pass Filter attenuates frequencies above the cutoff frequency in the transmit audio
stream. The frequency response can be seen in Figure 15

16 Vega DSP-223

g

4.2.2.15 DSP-223 Audio Block Diagram

See the previous programming sections on inserting/removing the Pre-Emphasis, AGC, 3.5kHz Low Pass
Filter, and the 400ms Delay options.

Line TX

Audio

Notch

Filter

Radio RX

Audio

Handset
Speaker

+

CTCSS Audio

Radio TX

Audio

Line RX

Audio

CTCSS

Generator

Notch

Filter

Pre-

Emphasis

AGC

400ms

Delay

+

3.5kHz

Low Pass

Tone

Detectors

Figure 13 Software Audio Path Block Diagram

4.2.2.16 DSP-223 Frequency Response

Figure 14 Tx Frequency Response With No Additional Filterin

Tone Remote 17

Figure 15 Tx Frequency Response With 3.5KHz Low Pass Filter

Figure 16 Tx Frequency Response With 3.5KHz Filter and Pre-Emphasis

18 Vega DSP-223

4.3 DTMF Responder Functions

A number of DTMF sequences may be sent to the DSP-223 from the console that may be used to affect
the performance of the unit or initiate a test function.

The standard activation sequence that precedes each command is DTMF
started upon entry of the first character of the string. If the entire control string is not entered within that
timeout period, the digits are discarded and the user must re-enter the string. For routines that adjust
gains, the value is adjusted and saved to the non-volatile memory.

*0#1 : Increase Radio TX Gain

Sending this command will increase the Radio TX gain by 1dB. Multiple repetitions of this sequence will
increase the Radio TX Gain up to +10dB.

*0#2 : Decrease Radio TX Gain

Sending this command will decrease the Radio TX gain by 1dB. Multiple repetitions of this sequence will
decrease the Radio TX Gain down to -10dB.

*0#3 : Increase Line TX Gain

Sending this command will increase the Line TX gain by 1dB. Multiple repetitions of this sequence will
increase the Line TX Gain up to +10dB.

*0#4 : Decrease Line TX Gain

Sending this command will decrease the Line TX gain by 1dB. Multiple repetitions of this sequence will
decrease the Line TX Gain down to -10dB.

*0#5 : Increase CTCSS Gain

Sending this command will increase the CTCSS gain by 1dB. Multiple repetitions of this sequence will
increase the CTCSS Gain up to +10dB.

*0#6 : Decrease CTCSS Gain

Sending this command will decrease the CTCSS gain by 1dB. Multiple repetitions of this sequence will
decrease the CTCSS Gain down to -10dB.

*0#7 : Loopback Line RX to Line TX

This command will place the DSP-223 into the Loopback Mode. Audio received at the RX terminals of
the Line interface on the DSP-223 will be echoed back onto the TX terminals. This mode lasts for
approximately 15 seconds and then the DSP-223 reverts back to its normal operation.

*0#8 : Send 1kHz Tone to both Radio and Line Interfaces

This command will generate a 1kHz, 10dBm, tone on both the Radio and Line TX terminals. This can be
used to set the DSP-223 TX level. The tone will last for approximately 15 seconds. There are no relay
closures associated with this mode.

The following DTMF sequences are enabled for control of the Kenwood x150/x180 radio

Refer to Section 7 – Specific Radio Control for Adaptor Kit Information

*0#9 : Toggle SCAN Mode of the Kenwood x150/x180 Radio

This command will toggle the SCAN mode of the Kenwood x150/x180 Series radio on and off.

*0#10 : Send the last Kenwood FleetSync® ANI data

This command causes the DSP-223 to generate a DTMF string to the Line TX corresponding to the last
seven digit Kenwood FleetSync® ANI data received by the radio.

*0#. A 2 second timer is

Tone Remote 19

5 Theory of Operation

The DSP-223 is a Digital Signal Processor (DSP) based product. Many of the signals that once could be
probed on older products, are handled within the DSP itself. This includes DTMF decoders, notch filters,
tone decoders, and all of the audio summing. Most of the gain controls are also included within the
software of the DSP. Because of this, hardware is simplified at the expense of software creation time and
user serviceability. The next sections discuss the portions of the DSP-223 that can be tested using a
common oscilloscope and voltage meter by a qualified service technician.

5.1 DSP-223 Audio Input Paths

The DSP-223 has only a single stereo Analog to Digital Converter (ADC) U25. The left channel converts
the Line receive audio and the right channel converts the Radio receive audio. A CMOS switch, U2, is
used to break those paths and insert handset audio for transmission down the line or to the radio. Up to
the point of entry into the ADC, the audio is analog and handled by standard op-amps. These paths can
be followed on the schematic and probed with any high-impedance measurement device.

5.2 DSP-223 Audio Output Paths

The DSP-223 has two stereo Digital to Analog Converters (DACs), U3 and U4. U4’s left channel drives
the sidetone for the handset. U4’s right channel is used for the CTCSS tone generation. U3’s left
channel is the line transmit audio source and the right channel of U3 is the radios transmit audio source.
Once the analog signal has been reconstructed on U3 and U4, they can be measured by conventional
techniques.

5.3 Troubleshooting Aid

Problem Possible Solution

What is position “A” on a jumper
plug
The DSP223 will not decode Is the power LED on the front panel ON?
Is J11 in the “A” position?
If in 4-wire, make sure the console TX is connected to the DSP223 line

Ensure alignment procedure Section 3.1 of the manual is correct.
Check telephone line continuity from dispatch console
Verify that proper PTT frequency is selected Section 4.2.2.5 of the

The DSP223 will not PTT radio Does PTT LED on front panel turn ON?
Check for proper PTT relay configuration/wiring
Check to see if JP2 is soldered closed (if common is grounded)
Verify that proper PTT frequency is selected Section 4.2.2.5 of the

Verify that function tone is not locked out Section 4.2.2.9.1 of the

Radio TX audio is low or
distorted
Check alignment procedure Section 3.3 of the manual.
Set J26 to opposite position, recheck.
EE and error beeps occur Overdriving of the Line RX ADC is occurring, adjust R68 down
Turn error beeps OFF, Section 4.2.2.11 of the manual (Rev 2.0

Radio RX audio is low or
distorted
Check alignment procedure Section 3.4 of the manual.

On early PCB’s the “A” position of the jumper is the double line side of
the silkscreen around the jumper plug.

RX.

manual (Rev 2.0 operating software or higher)

manual (Rev 2.0 operating software or higher)

manual (Rev 2.0 operating software or higher)
Check setup procedure Section 2.3.1 of the manual.

operating software or higher)
Check setup procedure Section 2.3.2 of the manual.

Check telephone line continuity to the dispatch console

20 Vega DSP-223

Problem Possible Solution

Unable to decode DTMF Check setup procedure Section 4.2.2.4 of the manual.
The DSP223 will not Monitor
function radio
Check for proper Monitor relay configuration/wiring
Check to see if JP3 is soldered closed (if common is grounded)
Unable to program DSP223 Verify operating and programming software is the same revision.
Download required files from web site www.vega-signaling.com and

Does Monitor LED on front panel turn ON?

follow Section 6 of the manual to update DSP223 software.

Check our web site for updated Troubleshooting aids.

6 Loading the DSP-223 Operational Software

1) The latest DSP-223 operating software and Windows® application software (and all previous
versions) may be downloaded from www.vega-signaling.com/dspsoftware.htm

2) Copy all included files into a directory on your PC, if they are zipped, extract them into this
directory

3) From the Start->Run, or Windows Explorer, menu run the file “winmon.exe”. This file needs to be
run only one time on a particular PC. It registers the drivers to communicate with the Vega
products

4) Either on the desktop or from the taskbar editor, add a shortcut to the program “Flashmon.exe”.
Alternately it can be run from the Start->Run menu as well. The dialog box contains a few
options that can be used.

5) The first step is to put the DSP-223 into programming mode. This is done by first removing
power from the unit.

6) The upper left corner of the Flashmon dialog box has a pull down menu for setting the baud rate.
The DSP-223 requires this value to be set to 19200. Change the baud rate to 19200.

7) With a straight through cable connected from the PCs Com1 port, (Com1 is the only option as of
now) click the “Power On” button in the dialog box and then apply power to the DSP-223.

8) After a couple seconds, the message “Power is On” will appear in the message window of the
dialog box. This indicates that communications has been established with the DSP-223 and that
it is now ready to accept a software download.

9) Click on the “Program…” button. Find the file for the version of software to be flashed into the
DSP-223. It will always have an extension of .BNM. Usually it will be of the form DSPVXX.BNM.

10) Double click or select the file and open it to begin the download process.

11) The verify button can be used the same way as the “Program…” button but it does not write to the
flash, only verifies it.

7 Specific Radio Control

Operating software Version 2.6 enables the DSP-223 to control the Relm BK Series and Kenwood
x150/x180 Series radios with serial commands from the Digital Expansion Port. If one of these radios is
connected to the DSP-223 when power is applied, the DSP-223 will detect the presence of the radio and
set the operating configuration. Standard radio control operations are PTT, monitor, and channel change
(i.e. F1=channel 1, F2=channel 2, etc.). Power to the DSP-223 is provided by the radios.
Additional control functions for the Kenwood x150/x180 are scan on/off, FleetSync® ANI detection and
EMERGENCY message receipt. The DSP-223 will generate a DTMF string corresponding to the seven
digit FleetSync® ANI format on the Line TX output. A stand-alone DTMF ANI decoder (i.e.
Communications Specialists Model ST-888) must be used to display the ANI information.

Adaptor kits for the specific radios are available that contain all the hardware and cables required for
control of the radio. Complete instructions are also included for installation and operation of the DSP-223.
The adaptor kits are:

• DSP-223/Relm Serial Interface Kit - P/N 0101239

• DSP-223/Kenwood x150/x180 Serial Interface Kit – P/N 301896000

Tone Remote 21

A

A

A

A

A

A

A

A

A

A

A

A

8 Pin out and Jumper Settings Quick Reference Table

DB25 Pin

J11- Factory Test Jumper
J12- Radio RX Input Impedance See Page 6 of manual
J13- Radio RX Input Impedance See Page 6 of manual
J14- TX Audio "A" Single Ended Low Impedance / "B" Balanced 600 Ohm
J15- TX Audio "A" Single Ended Low Impedance / "B" Balanced 600 Ohm
J16- Digital I/O Pull-up Voltage "A" +V / "B" +5VDC
J19- RX Line Termination "A" 600 Ohms / "B" 10K Ohms
J20- 2/4 Wire "A" 2-Wire / "B" 4-Wire
J21- 2/4 Wire "A" 2-Wire / "B" 4-Wire
J22- TX Audio "A" Single Ended Low Impedance / "B" Balanced 600 Ohm
J23- TX Audio "A" Single Ended Low Impedance / "B" Balanced 600 Ohm
J24- RX Audio "A" Single Ended / "B" Balanced 600 Ohm
J25- RX Audio "A" Single Ended / "B" Balanced 600 Ohm
J26- Radio TX Level "A" Low / "B" High
J27- RX Audio "A" Single Ended / "B" Balanced 600 Ohm
JP1/R95- +12V Supply to Line Connector when closed
JP2- PTT Common Grounded when closed
JP3- Monitor Common Grounded when closed
JP4- F1 Common Grounded when closed
JP5- F2 Common Grounded when closed

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

Shell

=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=

Signal

PTT N.C.
PTT COM Red
MON N.O.
F1 N.C.
F1 COM
F2 N.O.
GROUND
DIG 0
DIG 2
DIG 4
CTCSS
RX­TX­PTT N.O.
MON N.C.
MON.COM
F1 N.O.
F2 N.C.
F2 COM
+V
DIG 1
DIG 3
DIG 5
RX+
TX+

Bold Face type below denotes factory setting

Color

Brown

Orange
Pink
Yellow
Green
Lt. Green
Blue
Violet
Gray
White
Black
Brown/WHT
Red/WHT
Red/BLK
Orange/WHT
Orange/BLK
Pink/BLK
Yellow/BLK
Green/WHT
Green/BLK
Blue/WHT
Violet/WHT
Gray/BLK
Black/WHT
Shield

PIN ON RADIO

CONNECTOR

A

A
A

Open
Open
Open
Open
Open

B

B
B
B
B

B
B

B
B
B
B
B
B
B
B

Closed
Closed
Closed
Closed
Closed

22 Vega DSP-223

9 Schematics and Parts Lists

9.1 PCB P/N 750561 Revisions A to E

REV

DESCRIPTION

ECO NO

DATE

APPD

A

RELEASED FOR PILOT BUILD

SBC

B

U18 TO 760319 (ADSP-2185M)

SBC

C

DELETED 7602533PS AND ADDED TO LINCOLN BILL DSP223

SBC

This drawing, written description or specification Is

without the written permission of TELEX.

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated

APPROVALS: DR BY: SBC

DATE:01/17/2001

CHKD BY:SBC

DATE:01/18/01

Telex Communications INC.

Lincoln, Nebraska USA

APPD BY:DEE

DATE:01/18/01

PROD:___

DATE:___

PART NO:

REV LEVEL:

879457

C

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

REVISIONS

01-93-01 01/17/01
02-47-01 02/20/01
03-39-01 03/14/01

LN,BE PAGE 1 OF 5

C13,C14,C15,C16,

C18,C23,C25,C28,

C103,C104

,C106,C110,C111

This drawing, written description or specification Is

a proprietary product of TELEX, Lincoln, NE, and

without the written permission of TELEX.

shall not be released, disclosed, nor duplicated

APPROVALS: DR BY: SBC

DATE: 01/17/2001

CHKD BY:SBC

DATE:01/18/01

Telex Communications INC.

Lincoln, Nebraska USA

APPD BY:DEE

DATE:01/18/01

PROD:___

DATE:___

PART NO:

REV LEVEL:

879457

C

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

NEW

QTY

ITEM

1 51 CAPACITOR 0.1UF 0805 102881186T C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,

C32,C35,C37,C41,C44,C60,C61,C62,C66,
C67,C68,C69,C70,C71,C72,C76,C78,C81,
C85,C86,C90,C94,C95,C107,C108,C109,

C112,C113,C114,C115,C116,C117
2 4 CAPACITOR 1UF 0805 102881875T C19,C20,C26,C36
3 6 CAPACITOR 0.01UF 0805 102881123T C21,C24,C77,C82,C87,C91
4 2 CAPACITOR 0.47UF 1210 102881445T C22,C27
5 2 CAPACITOR 1800PF 0805 72341140T C29,C33
6 4 CAPACITOR 0.018UF 0805 102881126T C30,C31,C39,C40
7 1 CAPACITOR 0.047UF 0805 102881185T C34
8 8 CAPACITOR 0.001UF 0805 102881111T C42,C51,C55,C59,C74,C84,C89,C93
9 8 CAPACITOR 120PF 0805 102881100T C43,C50,C54,C58,C75,C83,C88,C92

10 8 CAPACITOR 220PF 0805 102881103T C46,C47,C63,C64,C65,C73,C79,C80
11
12 4 CAPACITOR 3.3UF TANT. B SIZE 102877021T C96,C97,C98,C99
13 5 CAPACITOR 10UF TANT. B SIZE 102877065T
14 1 LED GREEN RT ANGLE 1610628 D1
15 1 SOCKET 18 PIN RT ANGLE 640137 FOR D2
16 1 LED DUAL 7 SEGMENT GRN 760309 D2
17 1 LED RED LED 7602702 D3
18 1 LED RED RT ANGLE 1610630 D4
19 8 DIODE MMBD914 SOT-23 58711000T D5,D6,D7,D13,D14,D15,D16,D17
20 1 LED YELLOW RT ANGLE 1610631 D8
21 1 DIODE MMBZ5V6ALT1 SOT-23 508046000T D9
22 3 DIODE SMD4004 16016481SMT D10,D11,D12
23 4 THYRISTOR TVB230-050 710106 E1,E2,E3,E4
24 1 FUSE 1.5A SMT FUSE 7101051 F1
25 4 POLYSWITCH miniSMDC050-2 7101045T F6,F7,F8,F9
26 13 FERRITE FERRITE BEAD 723511T FB1,FB2,FB3,FB4,FB5,FB6,FB7,FB8,FB9,

FB10,FB11,FB12,FB19

27 1 CONN DC PWR JACK 2.5MM 59697000 J1
28 1 CONN 25 PIN DB25 FEMALE 640136 J2
29 2 HEADER 20 PIN SMT 640126 J3,J4
30 1 HEADER 6 PIN RT ANG LEADED 2862056 J5
31 1 CONN RJ-4 PIN CONN LEADED 640123 J6
32 1 CONN 9 PIN DB9 FEMALE 59926016 J7
33 2 CONN 8 PIN MODULAR JACK 2862013 J9,J10
34 15 HEADER 3 PIN SMT 640124 J11,J12,J13,J14,J15,J16,J19,J20,J21,

J22,J23,J24,J25,J26,J27

35 4 RELAY SPDT SMT 730142 K1,K2,K3,K4
36 4 INDUCTOR 820UH 723510 L5,L6,L7,L8
37 33 TRANSISTOR 2N3904 SOT-23 54671200T Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,

Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20,Q21,

Q22,Q23,Q24,Q25,Q26,Q27,Q28,Q29,Q30,

Q31,Q32,Q33

38 13 RESISTOR 0 OHM 0805 102506000T R1,R2,R3,R20,R95,R105,R139,FB13,FB14,FB15,

LN,BE

Page 2 of 5

This drawing, written description or specification Is

a proprietary product of TELEX, Lincoln, NE, and

without the written permission of TELEX.

shall not be released, disclosed, nor duplicated

APPROVALS: DR BY: SBC

DATE: 01/17/2001

CHKD BY:SBC

DATE:01/18/01

Telex Communications INC.

Lincoln, Nebraska USA

APPD BY:DEE

DATE:01/18/01

PROD:___

DATE:___

PART NO:

REV LEVEL:

879457

C

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

NEW

QTY

ITEM

FB16,FB17,FB18

39 65 RESISTOR 10K 0805 102515300T R4,R6,R8,R9,R10,R11,R13,R14,R15,R16,

R17,R18,R21,R22,R23,R33,R34,R41,R42,R43,

R48,R49,R50,R51,R53,R54,R55,R56,R65,

R67,R69,R72,R75,R76,R77,R79,R81,R84,

R87,R88,R89,R90,R91,R92,R93,R94,R99,

R103,R108,R110,R112,R115,R118,R119,

R121,R122,R124,R126,R129,R132,R133,

R135,R138,R140,R142

40 1 RESISTOR 10 OHMS 2010 102405100T R5
41 5 RES VAR 100K 723097-3 R7,R12,R68,R98,R149
42 1 RESISTOR 30K 0805 102515346T R24
43 7 RESISTOR 47 OHMS 0805 102515065T R25,R38,R62,R70,R144,R145,R146
44 4 RESISTOR 20K 0805 102515329T R26,R36,R39,R52
45 3 RESISTOR 150 OHMS 0805 102515117T R27,R32,R61
46 4 RESISTOR 562 OHMS 0805 102515172T R28,R31,R44,R47
47 4 RESISTOR 267K 0805 102515441T R29,R30,R45,R46
48 1 RESISTOR 15 OHMS 0805 102515017T R35
49 6 RESISTOR 33K 0805 102515350T R37,R59,R60,R63,R101,R104
50 1 RESISTOR 332 OHMS 0805 102515150T R40
51 4 RESISTOR 100K 0805 102515400T R57,R58,R97,R100
52 2 RESISTOR 604 OHMS 0805 102515175T R64,R134
53 1 RESISTOR 681 OHMS 0805 102515180T R66
54 26 RESISTOR 1K 0805 102515200 R19,R71,R73,R74,R78,R80,R82,R83,R85,R86,

R102,R109,R111,R113,R114,R116,R117,

R120,R123,R125,R127,R128,R130,R131,

R141,R143

55
56 1 RESISTOR 301 OHMS 0805 102515146T R107
57 1 SWITCH PUSH BUTTON SPST 57502000 SW1
58 2 TRANSFMER 10K-10K THRU-HOLE 3180246 T1,T2
59 2 TRANSFMER 600-600 THRU-HOLE 3180259 T3,T4
60 8 TEST JACK ORANGE 2861965 TP2,TP3,TP5,TP6,TP7,TP8,TP12,TP13
61 1 IC TL16C550CFN 760262 U1
62 1 IC 4053 SO16 53266123 U2
63 2 IC CS4335 SO8 760263 U3,U4
64 1 SOCKET PLCC 32 PIN PLCC SOCKET 539030032T U6 SOCKET
65
66 2 IC NE5532 SO8 760268 U7,U8
67 4 IC 74LCX574 SO20 760257 U9,U10,U11,U12
68 1 IC UA7810CKTE SMT 760275 U13
69 2 IC 74LCX541 SO20 760256 U16,U17
70 1 IC ADSP-2186M TQFP100 760319 U18
71 1 IC AT24C16N SO8 511336000T U19
72 1 IC LT1181ACSW 760261 U20
73 1 IC UA7805CKTE SMT 760260T U21
74 3 IC TL084 SO14 4300047 U22,U23,U24
75 1 IC CS5330A SO8WB 760264 U25

LN,BE

Page 3 of 5

This drawing, written description or specification Is

a proprietary product of TELEX, Lincoln, NE, and

without the written permission of TELEX.

PRINTED CIRCUIT BOARD

shall not be released, disclosed, nor duplicated

APPROVALS: DR BY: SBC

DATE: 01/17/2001

CHKD BY:SBC

DATE:01/18/01

Telex Communications INC.

Lincoln, Nebraska USA

APPD BY:DEE

DATE:01/18/01

PROD:___

DATE:___

PART NO:

REV LEVEL:

879457

C

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

NEW

QTY

ITEM

76 1 IC TPS70158 760306 U26
77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 SOCKET
78 1 IC EPM7032AE PLCC44 760267-3PS U27 (PROGRAMMED)
79 1 32.768MHZ 780186 Y1
80 15 JUMPER JUMPER 2515001001 FOR
81 1 PCB

750561

82 A/R SOLDER PASTE BE738

LN,BE

Page 4 of 5

770660

This drawing, written description or specification
is a proprietary product of Telex, Lincoln, NE
and shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

NOTES:

REFERENCE PCB NUMBER :

1

SENSE

IOMS
R-CS1

RD

WR

2

HPTT

J6

1

1

MIC

2

2

GND

3

3

PTT

4

4

EAR

S2S1

NC2NC1

SW1

1 4

2 3

3

HNDLINE

R66

A B C D

R139

F3

FIDUCIAL FIDUCIAL

F2

FIDUCIAL

750561

TP12

FB13
FB14
FB15
FB16

FB17

TP9

1

TP101TP11

1

MTHOLE6

MTHOLE6

MTHOLE6

MTHOLE6

X5

X6

X7

X8

FB18

VDD

J4

3
5
7

9
11
13
15
17
19

A[0:13]

21

A0

4

A1

6

A2

8

A3

10

A4

12

A5

14
16
18
20

D[0:23]

D8
D9
D10
D11
D12
D13
D14
D15

J3

1 2
3
5
7

9
11
13
15
17
19

4
6
8
10
12
14
16
18
20

R1

+10V

TP4

R51

CTCSS

681

20K

R52

10K

R54

0.1UF
C44

LINERX

RADIORX

0.1UF

ICBUTTS

TP13

1

C107

+10V

R53

3

2

+10V

U23

14

TL084

10K

2N3904

Q2

10K
U23

2

­1

3

+

TL084

VR2.5

R40

SIDETONE

332

R149

100K

R26

13

-

20K

12

+

VR6

U2

3

4

5

9

U2

1

15

2

10

3900PF(OPT)

R50

C38

10K

U23

7
TL084

0.047U

R42

C34

10K

TL084

U23

0.1UF

R43

6

-

10K

5

+

VR6

98

­10

+

C41

R41

0.1UF

10K

C37

VR6

0.018UF

0.018UF
C39C40

R47

R44

562

10K

562

10K

FL0B

R49

R48

0

R2

C98

2 1

3.3UF

C99

2 1

3.3UF

FL1B

+

+

267K267K

FIDUCIAL

MTH189

MTH189

0

R3

R46

R45

F4

F5

X1

1

X2

1

POWERIN

J9

1

1

2

Digital

2

3

3

OUT1

4

4

OUT2

5

5

INP1

Port

6

6

7

7

8

8

10UF

+12V

C104

UA7805CKTE

1

IN

0.1UF
C16

+

21

+5V

U21

3

OUT

0.1UF

GND

2

VDD

Leave R1 for 3.3V Parts (L)
Remove for 2.5 V Internal Parts (M)

LT1086CM-33

10UF

C105

+

21

C13

IN OUT

0

VDD

R4

10K

D5

+5V

C36
1UF

C35

0.1UF

7

U4

VA

1

CS4335

SDATA

2

DEM/SCLK

3

LRCK

4

MCLK

AGND

6

R62

47

R25

8

AOUTL

5

AOUTR

D12

12

J1

21

F1

213

POWERIN

VDD

C10

0.1UF

47

47

U15

2 1

C109

0.1UF

0.1UF

C108

+2.5V

R20

+12V

0

+5V

VDD

23

C17

10UF

10UF

C101

+

GND

D10

3A

R-CS0

R-CS1

MCLK2

R145

1

2 1

47R146

0.1UF

21

U13

UA7810CKTE

1

IN

10UF

0.1UF

+

C103

D11

C15

21

A[0:13]

A5

A3

A4

7

R-CS0

8

R-CS1

9

MCLK2

10

GND10

11 35
12

GND12

13

GND13

14

LRCLK-OFF

15

VCCIO15

16

LRCLK

17

DIV4

R38 47

W-CS0
W-CS1

CS3

MCLK
LRCLK
SCLK

TPS70158

+

21

0.1UF

TP2

C106

+5V

10UF

21

+

C25

0.1UF

7

U25

VA

1

8

AINL

5

AINR

CS5330A

SDATA

SCLK

LRCK

MCLK

AGND

6

ADC1
2
3
4

TP3

R32

R27

0.47UF
C27

0.01UF

C24

150

0.47UF
C22

0.01UF

C21

150

0

U26

1

NC1 NC3

2

VIN1-1

3

VIN1-2

4

MR1

5

MR2

6

EN

7

SEQ

8

GND

9

VIN2-1

10

VIN2-2

VDD

U5

LT1118CST-25

C102

2

C9

6

A5

W-CS0

181920

IN OUT

3

OUT

GND

VDD

3

2

5

4

A3

A4

GND2

VCCINT3

MAINPLD

U27

CS3B0B1

GND20

W-CS1

GND22

22

C2

GND

2

44

1

GND44

GND1

DAC2

VCCINT23

23

VDD

43

32MCLK

GND42

DAC1

13

10UF

0.1UF

C14

41

42

RESET

ADC1

27

40

RESET

2821242526

+

21

RESET

0.1UF

R144

47

R70

47

20
19

VOUT1-1

18

VOUT1-2

17

VSENSE1

16

PG1

15

RESET

14

VSENSE2

13

VOUT2-1

12

VOUT2-2

11

NC2

U14

DS1233A

3 2

VCC

GND1

1

4

+2.5V

C100

0.1UF

C12

+10V

39

FS

38

IOMS

37

SP0-RX

36

SP0-TX

VCCIO35MCLK

34

RD

33

WR

32

INTR

31

DIV4

30

GND30

INTR

29

INTR

GND2

C111

RESET

21

+

+

C110

21

10UF

R135

+2.5V

10UF

VDD

C7

RESET

10K

2

VDD

1

3

0.1UF

R138

10K

Mode Select R's

VDD

R14

10K

D9

A[0:13]

R8

10K

R17

C1

10K

0.1UF

R13
10K

1
2

VDD

C4

VDD

+10V

R9

10K

EECLK

Y1

VDD

GNDNCOUT

37-5MHZ

+2.5V

C11

0.1UF

0.1UF

R10

R11

10K

U19

1 8
2

NC2

3

NC3

4

GND

SO8NB

AT24C16

VDD

4
3

10K

A4
A5

2
3

A6

4

A7

5

A8

6

A9

7

A10

8

A11

9

A12

10

A13

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

R15

10K

R6

VCC1NC1
TEST

CLK

DATA

10K

7
6

EECLK

5

EED0

SHEET

REV.

A4/IAD3
A5/IAD4
GND1
A6/IAD5
A7/IAD6
A8/IAD7
A9/IAD8
A10/IAD9
A11/IAD10
A12/IAD11
A13/IAD12
GND2
CLKIN
XTAL
VDDEXT1
CLKOUT
GND3
VDDINT1
WR
RD
BMS
DMS
PMS
IOMS
CMS

SHEET

REVISION

STATUS

A0A1A2

A3

100

979899

96

A0

A1/AD0

A2/AD1

A3/AD2

PWDACK

GND4

IRQ2+PF7

IRQE+PF4

IRQL0+PF5

IRQL1+PF6

303126

27292832333839414036373534

C6

0.1UF

VDD

BGH

PF0-MODEA

PF1-MODEB

ADSP-2189M

TQFP100

DT0

RFS0

TFS0

VDD

Emulation Header

1

GND

3

EBG

5

EBR

7

KEY

9

ELOUT

11

EE

13

RESET

GND10

DR0

REVISIONS

DESCRIPTIONREV.LOC.

ECO NO. DRFT CHKR APP DATE

A RELEASED FOR PILOT BUILD SBC 01/15/01

D3

R19

+10V

21

21

1K

VDD

A[0:13]

C18

0.1UF

D[0:23]

VDD

R16

10K

U6

A0

12

A1

11

A2

10

A3

9

A4

8

A5

7

A6

6

A7

5

A8

27

A9

26

A10

23

A11

25

A12

4

A13

28

D16

29

D17

3

D18

2

D19

30

D20

1

31
24
22

AT29LV020

D8

13

A0

D0

D9

14

A1

D1

D10

15

A2

D2

D11

17

A3

D3

D12

18

A4

D4

D13

19

A5

D5

D14

20

A6

D6

A7

D7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18

WR
RD
CS

D[0:23]

D15

21

VDD

C3

0.1UF

+2.5V

C5

0.1UF

PWD

U18

SCLK0

C8

0.1UF

88

PF3

VDDEXT4

PF2-MODEC

DT1

TFS1

VDDEXT2

TP1

1

EED0

FL0

87

J8

D18

D19

D20

D21

D22

D23

FL1

D19

D20

D21

D22

D23

FL0

FL1

FL2

GND9

DR1

ECLKEEELIN

GND5

RFS1

SCLK1

EMS

ERESET

RESET

444543424748504946

2

BG

4

BR

6

EINT

8

ELIN

10

ECLK

12

EMS

14

ERESET

10K

D17
7778798081828384858689909192939495

D18

ELOUT

3

2N3904

1

21

2

D[0:23]

D16
76

D16

D17

D15

751

D15

D14

74

D14

D13

73

D13

D12

72

D12

71

GND8

D11

70

D11

D10

69

D10

D9

68

D9

67

VDDEXT3

66

GND7

D8

65

D8

D7

64

D7/IWR

D6

63

D6/IRD

D5

62

D5/IAL

D4

61

D4/IS

60

GND6

59

VDDINT2

D3

58

D3/IACK

D2

57

D2/IAD15

D1

56

D1/IAD14

D0

55

D0/IAD13

54

BG

53

EBG

52

BR

51

EBR

EINT

Q1

R18

1

2

3

R56

10K

3

RADLINE

4

R55

10K

13

12

2N3904

1

Q3

2

U2

14

11

LINETX

RADIOTX

1800PF

C29

U22

7

TL084

1800PF

C33

U22

8

TL084

R12

100K

R7

100K

R21R22

C19

1UF

10K

10K

C20

1UF

+5V

R23

10K

12
13

R24

30K

0.1UF

C116

U24

0.1UF

C117

+10V

0.1UF

+5V

C26
1UF

CS4335

C23

0.1UF

7

U3

VA

SDATA

DEM/SCLK

LRCK

MCLK

AGND

6

DAC1

1
2
3
4

­5

+

VR6

9

­10

+

C32

20K

0.1UF

R39

C28

20K

VR6

0.1UF

R36

6

0.018UF

0.018UF
C30C31

R31

R28

C96

2 1

+

3.3UF

562

10K

562

10K

2 1

3.3UF

R33R34

R30

8

AOUTL

5

AOUTR

C97

+

267K267K

R29

BYPASS CAPS FOR:

U22

U2U7U8

C112

0.1UF

C113

0.1UF

C114

U23

0.1UF

C115

CAD GENERATED DRAWING

CBA

VR6

TL084

+

3

1

-

2

U22

VR2.5

TL084

+

14

-

U22

DATE

879457

MODEL

NEXT
ASS'Y

CHK TITLE

DEE SBC

01/15/2001

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

APPDR

VEGA

DSP 223

R

SCHEMATIC

DWG. NO.

SIZE

770660

D

D

1

SHT.

OF

4

2

770660

This drawing, written description or specification
is a proprietary product of Telex, Lincoln, NE
and shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

NOTES:

REFERENCE PCB NUMBER :

1

D1

D4

2

JP2

3

JP3

JP4

JP5

4

D8

1

2

1

2

1

2

1

2

21

21

21

PTT-NC
PTT-NO
PTT-COM

MON-NC
MON-NO
MON-COM

F1-NC
F1-NO
F1-COM

F2-NC
F2-NO
F2-COM

+5V +12V

321

A

B

A B C D

J16

10

6
1

10

8 3
6

1

10

6
1

10

K1

8 3
6

NC

1

D14

K2

NC

D15

K3

NC

D16

K4

NC

R-CS0

R86

R85

DIG1

3

1K

2N3904

1

Q14

2

R82

DIG3

3

1K

2N3904

1

Q12

2

R80

DIG5

3

1K

2N3904

1

Q11

2

+12V

R73

1K

3

2N3904

1

Q8

2

3

2N3904

1

Q6

2

3

2N3904

1

Q5

2

+12V

D13

+

5

+12V

38

+

5

+12V

+

5

+12V

38

+

5

VDD

1K

R84

10K

R83

1K

R81

10K

R78

1K

R79

10K

R72

10K

R69

10K

R67

10K

D13
D14
D15

CS3

MCLK2

2N3904

Q13

2N3904

Q10

+12V

1KQ73

2N3904

2N3904

D[0:23]

7
8

9
10
11
12
13
14
15
16
17

2N3904

Q15

+12V

2N3904

R71

Q4

2N3904

Q16

D5
D6
D7
RCLK
SIN
NC2
SOUT
CS0
CS1
CS2
BAUDOUT

3

1K

Q9

2

3

2

R74

2

3

2

0.1UF

3

2

DIG2

DIG4

3

2

3

2

C69

D11

D12
65432

TL16C550C

XIN

XOUT

191821

1

1

1

1

D10

PLCC44

U1

WR1

WR

DIG0

1

D9

WR2

1

HNDLINE
RADLINE

1

VDD

D8

1

D0D1D2D3D4

NC1

VSS

NC3

232027

22

R87

VDD

10K

R88

10K

R77

10K

R75

10K

R76

10K

R65

10K

R99

10K

43

414240

44

RI

VCC

CTS

DCD

DSR

MR

OUT1

DTR
RTS

OUT2

NC4
INTRPT
RXRDY

DDIS

RD2

ADS

RD1

TXRDY

24

28

25

26

RD

0.1UF

C62

U10

1

20

VCC

OE

2

19

Y0

D0

3

18

Y1

D1

4

17

Y2

D2

5

16

Y3

D3

6

15

Y4

D4

7

14

Y5

D5

8

13

Y6

D6

9

12

Y7

D7

10

11

CLK

GND

74LCX574

W-CS0

VDD

0.1UF

C61

U9

1

20

VCC

OE

2

19

Y0

D0

3

18

Y1

D1

4

17

Y2

D2

5

16

Y3

D3

6

15

Y4

D4

7

14

Y5

D5

8

13

Y6

D6

9

12

Y7

D7

10

11

CLK

GND

74LCX574

W-CS0

RESET

39
38
37
36
35
34
33

A[0:13]

32

A0

31

A0

A1

30

A1

A2

29

A2

INTR

19

OE2

D8

18

O0

D9

17

O1

D10

16

O2

D11

15

O3

D12

14

O4

D13

13

O5

D14

12

D[0:23]

O6

D15

11

O7

D8

D9
D10
D11

D[0:23]

D12
D13
D14
D15

D[0:23]

D16
D17
D18
D19

D[0:23]

D20
D21
D22
D23

R94

1

10K

D[0:23]

Serial Interface

VDD

0.1UF
C76

U17

1

OE1

2

Y0

3

Y1

4

Y2

5

Y3

6

Y4

7

Y5

8

Y6

9

Y7

74LCX541

0.1UF
C85

U11

1

OE

D8

2

D0

D9

3

D1

D10

4

D2

D11

5

D3

D12

6

D4

D13

7

D5

D14

8

D6

D15

9

D7

10

GND

74LCX574

PIN1OUT

3

2N3904

Q33

2

0.1UF

C94

U12

1

OE

D16

2

D0

D17

3

D1

D18

4

D2

D19

5

D3

D20

6

D4

D21

7

D5

D22

8

D6

D23

9

D7

10

GND

74LCX574

0.1UF
C66

U16

1

OE1

2

Y0

3

Y1

4

Y2

5

Y3

FL0

6

Y4

7

FL1

Y5

8

Y6

9

Y7

74LCX541

D17

0.1UF

U20

LT1181A

J2

2

1

1

23456

15161718192021222324251413

PTT-COM

PTT-NC

PTT-NO

MON-NC

R116

3

R115

10K

C72

15

2N3904

1

Q22

2

R112

1

10K

2

R110

1

10K

2

R140

1

10K

R129

1

10K

2

R126

1

10K

R124

1

10K

R142

1

10K

+5V

16

6

V-

VCC

GND

4

C2+

5

C2-

1411
710

13

R1IN

8

R2IN

MON-NO

+12V

1K

R113

3

2N3904

Q20

R111

3

2N3904

Q19

R141

3

2N3904

Q31

2

R130

3

2N3904

Q29

3

2

3

2

R143

3

2N3904

Q32

2

MON-COM

F1-NC

F1-NO

+12V

1K

+12V

1K

+12V

1K

+12V

1K

+12V

R127

1K

2N3904

Q27

+12V

R125

1K

2N3904

Q26

+12V

1K

0.1UF

F1-COM

C70

F2-NC

F2-NO

F2-COM

76543

8

8

7

POWERIN

DIG0

DIG1

C67

0.1UF

C73 220PF

220PFC65

C64 220PF

220PFC63

9

DIG2

SENSE

R89

R90

10K

10K

10K

VDD

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

W-CS1

VDD

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

W-CS1

VDD

19

OE2

18

O0

17

O1

16

O2

15

O3

14

FL0B

O4

13

FL1B

O5

12

O6

11

O7

D7

ICBUTTS

D6

HPTT

VDD

R91

R92

R93

10K

10K

+12V

R117

3

R118

10K

10K

10K

R103

10K

R132

10K

10K

1K

2N3904

1

Q23

2

+12V

R114

1K

R119

R108

R121

3

2N3904

1

Q21

2

+12V

R109

1K

3

2N3904

1

Q18

2

+12V

R102

3 1K

2N3904

1

Q17

2

+12V

R131

3

1K

2N3904

1

Q30

2

+12V

R128

1K

0.1UF

3

2N3904

1

Q28

2

+12V

R123

1K

3

2N3904

1

Q25

2

+12V

R120

3 1K

2N3904

1

Q24

2

+5V

C68

0.1UF

2

V+

1

TXD
RTS

RXD
CTS

C1+

3

C1-

T1IN T1OUT
T2IN T2OUT

12

R1OUT

9

R2OUT

C71

R133

10K

R122

10K

910112612

10

DIG3

DIG4

DIG5

CTCSS

RX-RAD+

FB8

122611

RX-RAD-

FB7

13142524232221201918171615

TX-RAD+

TX-RAD-

27

27

FB6

RTDB25

FB5

FB19

181

16

17
G1B1GND2F2GND1

A1

F1

a1

f1

g1

e1 c1

d1 d2

E1

23456

J7

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

RTDB9

J5

GROUND

PTTCOM

PTTNO

POWER

RAD-RX

RAD-TX

21435

6

6

53412

POWERIN

J11

1

A

2

B

3

U2432

­1

+

TL084
U2456

­7

+

TL084

LINERX

131214

15

118

10

B2

a2

f2

b1

DP1C1D1

10

11

g2

e2 c2

G2D2E2

7

C2A2DP2

b2

D2

RADIOTX

100K

9

RADIORX

LINETX

R97

100K

VR6

100K

R68

U241213

-

14

+

TL084

VR2.5

C47

220PR57

R58

100K

U72

­1

3

+

NE5532

VR6

100K

R98

R37

U24109

-

8

33K

+

TL084

VR2.5

CAD GENERATED DRAWING

SHEET

REV.

220P

100K

-

3

+

R63

33K

R61

150

0.1UF

SHEET

REVISION

STATUS

C80

R100

U82

1

33K

NE5532

0.1UF
C95

VR2.5

R35

15

33K

J24, J25 A=Bypass, B=Transformer

J24

C60

A RELEASED FOR PILOT BUILD SBC 01/15/01

R107

301

R101

R59

VR2.5

C79

220P

R104

33K

U8

6

­7

5

+

NE5532

VR6

RX Impedance-Line 1
600 Ohm: J19=A
10K Ohm: J19=B

10K:10K

3

4

2165

T2

J14, J15, J22, J23 A=Bypass, B=Transformer

J14

J26

1

A

2

B

3

C46

220P

R60

33K

U7

6

­7

5

+

NE5532

VR6

1

A

2

B

3

10K:10K

3

4

2165

T1

MODEL

TX Impedance
600 Ohm: J18=A J17=A
1200 Ohm:J18=B J17=A
1800 Ohm: J18=A J17=B
2400 Ohm: J18=B J17=B

J19

A

B

123

604

R134

1

A

2

B

3

J22

A
B

J25

1

A

2

B

3

J27

1

A

2

B

3

879457

NEXT
ASS'Y

600:600

4

3

5

2

6 1

T4

L7

0.1UF

820UH

C90

L8

0.1UF

820UH

C86

600:600

4

3

5

2

6 1

T3

1
2
3

J13

A

B

123

604

R64

RX Impedance
8 Ohm: J12=A, J13=B
600 Ohm: J12=B,J13=A
10K Ohm: J12,J13=B

DEE SBC

DATE

TELEX COMMUNICATIONS, INC.

REVISIONS

DESCRIPTIONREV.LOC.

R105

0.1UF

0

0.1UF

FB12

0.01UF

0.001UF

C91

C93

FB11

0.01UF

0.001UF

C87

C89

J15

1

A

2

B

3

J23

1

A

2

B

3

1/2W

R5

10

A

B

J12

CHK TITLE

01/15/2001

LINCOLN, NEBRASKA

C81

321

820UH

C78

820UH

ECO NO. DRFT CHKR APP DATE

1

0.01UF

0.01UF

FB10

0.001UF

1
2
3

1
2
3

0.001UF

A
B

A
B

C84

J21

J20

120P

C83

FB9

120P

C74

C75

1

TP7

1

TP8

J20,J21=A 2W
J20,J21=B 4W

E1

E2

F6F7

PIN1OUT

E3

E4

F9

F8

Line

J10

1

1

2

2

3

3

RX+

4

4

TX+

5

5

TX-

6

6

RX-

7

7

8

8

R95

2

+12V

C82

C77

L5

L6

120P

C92

120P

C88

0

FB2

0.001UF
120P

C50

C51

FB1

0.001UF
120P

C42

C43

TX-RAD+

TX-RAD-

RX-RAD+

RX-RAD-

TP51

1

TP6

3

0.001UF

0.001UF

FB4

120P

C58

C59

FB3

120P

C54

C55

Radio

APPDR

VEGA

DSP 223

R

SCHEMATIC

DWG. NO.

SIZE

770660

D

SHT.

22

OF

4

CBA

D

Tone Remote 23

9.2 PCB P/N 750561 Revision F

V

A

A

)

3

c

9

0

A

)

6

0

A

A

A

K

A

A

t

t

S

2

R

This drawing, written description or specification Is

PBH

Digitally signed 
by PBH
DN: cn=PBH, 
c=US
Date: 

2002.11.26 
07:50:16 -06'00'

Signature 
Not Verified

SBC

Digitally signed 
by SBC
DN: cn=SBC, 
c=US
Date: 

2002.11.25 
13:36:36 -06'00'

Signature 
Not Verified

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE:01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

REVISIONS

RE

RELEASED FOR PILOT BUILD
B U18 TO 760319 (ADSP-2185M
C DELETED 7602533PS AND ADDED TO LINCOLN BILL DSP22
D R95 NOT TO BE INSTALLED
E CHANGE J7 FROM 59926016 TO 64014
F ITEM 17 TELEXPN 7602702 CHAGED TO TELEXPN 5868000

G

DDED C45,C48,C49, FB20, FB21-FB31 (PCB TO REV D

H ITEM 1 - DELETED C28, C32

ITEM 2 - ADDED C28

ITEM 10 - ADED C12,C17

ITEM 38 - DELETED R20 ADDED R63,R95,R9

ITEM 39 - ADDED R106,R136,R137,R147,R148,R15

ITEM 49 - DELETED R37,R63

ITEM 66 - ADDED U5

ITEM 74 - DELETED U24

DDED ITEM 85 - R20, R37
DDED ITEM 86 - SCHEMATIC REFERENCE

PRINTED CIRCUIT BOARD TO REV E.

J

DDED D18,D19,D20 TO ITEM 19. R95,R96 CHANGED TO 10
ND ADDED TO ITEM 39. R151 ADDED TO ITEM 39

R63 TO 267K. C37 TO 1UF AND ADDED TO ITEM 2.

DDED C32,C41,C52 TO ITEM 2. ITEM 1 TO QTY OF 49

ITEM 38 TO QTY OF 11. PCB TO REV F.

DESCRIPTION ECO NO DATE

01-93-01 01/17/01
02-47-01 02/20/01
03-39-01 03/14/01
04-01-01 04/02/01
04-47-01 04/12/01
04-83-01 04/18/01
09-23-01 09/11/01
11-93-01 11/27/01

02-60-02 02/12/02

PPD
SBC
SBC
SBC

sb
SBC
SBC
SBC

ON NEXT REV CHANGE THE FOLLOWING
item 3 use 102881150
Item 8 use 102881138

K R138 FROM 10K TO 1K. ITEM 3 TO 102881150T, ITEM 8 TO 102881138T

L ITEM 78 - DELETE 7602673PS - ADD 760519-3P

M REVERSE CHANGE 04-20-0

N ITEM 41 CHANGED PART NUMBE

03-50-02 03/19/02
04-20-02 04/10/02
05-12-02 05/03/02
11-56-02 11/25/02

LN,BE PAGE 1 OF 5

,

4

This drawing, written description or specification Is
a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

1 49 CAPACITOR 0.1UF 0805 102881186T C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,

C13,C14,C15,C16,C18,C23,C25,
C35,C44,C60,C61,C62,C66,
C67,C68,C69,C70,C71,C72,C76,C78,C81,
C85,C86,C90,C94,C95,C107,C108,C109,
C112,C113,C114,C115,C116,C117

C45,C48

2 9 CAPACITOR 1UF 0805 102881875T C19,C20,C26,C36, C28, C32, C37, C41, C52
3 6 CAPACITOR 0.01UF 0805 102881150T C21,C24,C77,C82,C87,C91
4 2 CAPACITOR 0.47UF 1210 102881445T C22,C27
5 2 CAPACITOR 1800PF 0805 72341140T C29,C33
6 4 CAPACITOR 0.018UF 0805 102881126T C30,C31,C39,C40
7 1 CAPACITOR 0.047UF 0805 102881185T C34
8 8 CAPACITOR 0.001UF 0805 102881138T C42,C51,C55,C59,C74,C84,C89,C93

9 8 CAPACITOR 120PF 0805 102881100T C43,C50,C54,C58,C75,C83,C88,C92
10 10 CAPACITOR 220PF 0805 102881103T C46,C47,C63,C64,C65,C73,C79,C80, C12, C17
11
12 4 CAPACITOR 3.3UF TANT. B SIZE 102877021T C96,C97,C98,C99
13 5 CAPACITOR 10UF TANT. B SIZE 102877065T

C103,C10

,C106,C110,C111
14 1 LED GREEN RT ANGLE 1610628 D1
15 1 SOCKET 18 PIN RT ANGLE 640137 FOR D2
16 1 LED DUAL 7 SEGMENT GRN 760309 D2
17 1 LED RED LED 58680000 D3
18 1 LED RED RT ANGLE 1610630 D4
19 11 DIODE MMBD914 SOT-23 58711000T D5,D6,D7,D13,D14,D15,D16,D17,D18,D19,D20
20 1 LED YELLOW RT ANGLE 1610631 D8
21 1 DIODE MMBZ5V6ALT1 SOT-23 508046000T D9
22 3 DIODE SMD4004 16016481SMT D10,D11,D12
23 4 THYRISTOR TVB230-050 710106 E1,E2,E3,E4
24 1 FUSE 1.5A SMT FUSE 7101051 F1
25 4 POLYSWITCH miniSMDC050-2 7101045T F6,F7,F8,F9
26 24 FERRITE FERRITE BEAD 723511T FB1,FB2,FB3,FB4,FB5,FB6,FB7,FB8,FB9,

FB10,FB11,FB12,FB19, FB21,FB22,FB23,FB24,

FB25,FB26,FB27,FB28,FB29,FB30,FB31
27 1 CONN DC PWR JACK 2.5MM 59697000 J1
28 1 CONN 25 PIN DB25 FEMALE 640136 J2
29 2 HEADER 20 PIN SMT 640126 J3,J4
30 1 HEADER 6 PIN RT ANG LEADED 2862056 J5
31 1 CONN RJ-4 PIN CONN LEADED 640123 J6
32 1 CONN 9 PIN DB9 FEMALE 640149 J7
33 2 CONN 8 PIN MODULAR JACK 2862013 J9,J10
34 15 HEADER 3 PIN SMT 640124 J11,J12,J13,J14,J15,J16,J19,J20,J21,

J22,J23,J24,J25,J26,J27
35 4 RELAY SPDT SMT 730142 K1,K2,K3,K4
36 4 INDUCTOR 820UH 723510 L5,L6,L7,L8
37 33 TRANSISTOR 2N3904 SOT-23 54671200T Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,

Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20,Q21,

Q22,Q23,Q24,Q25,Q26,Q27,Q28,Q29,Q30,

Q31,Q32,Q33

LN,BE

Page 2 of 5

This drawing, written description or specification Is
a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

38 11 RESISTOR 0 OHM 0805 102506000T R1,R2,R3, R105,R139,FB13,FB14,FB15,

FB16,FB17,FB18
39 73 RESISTOR 10K 0805 102515300T R4,R6,R8,R9,R10,R11,R13,R14,R15,R16,R17,R18

R21,R22,R23,R33,R34,R41,R42,R43,R48,R49,R50

R51,R53,R54,R55,R56,R65,R67,R69,R72,R75,

R76,R77,R79,R81,R84,R87,R88,R89,R90

R91,R92,R93,R94,R99,R103,R108,R110,R112,

R115,R118,R119,R121,R122,R124,R126

R129,R132,R133,R135,R140,R142,

R106,R136,R137,R147,R148,R150,R95,R96,R151
40 1 RESISTOR 10 OHMS 2010 102405100T R5
41 X 5 RES VAR 100K LINEAR H/ADJ 724097 R7,R12,R68,R98,R149
42 1 RESISTOR 30K 0805 102515346T R24
43 7 RESISTOR 47 OHMS 0805 102515065T R25,R38,R62,R70,R144,R145,R146
44 4 RESISTOR 20K 0805 102515329T R26,R36,R39,R52
45 3 RESISTOR 150 OHMS 0805 102515117T R27,R32,R61
46 4 RESISTOR 562 OHMS 0805 102515172T R28,R31,R44,R47
47 5 RESISTOR 267K 0805 102515441T R29,R30,R45,R46,R63
48 1 RESISTOR 15 OHMS 0805 102515017T R35
49 4 RESISTOR 33K 0805 102515350T R59,R60,R101,R104
50 1 RESISTOR 332 OHMS 0805 102515150T R40
51 4 RESISTOR 100K 0805 102515400T R57,R58,R97,R100
52 2 RESISTOR 604 OHMS 0805 102515175T R64,R134
53 1 RESISTOR 681 OHMS 0805 102515180T R66
54 27 RESISTOR 1K 0805 102515200 R19,R71,R73,R74,R78,R80,R82,R83,R85,R86,

R102,R109,R111,R113,R114,R116,R117,

R120,R123,R125,R127,R128,R130,R131,

R141,R143, R138
55
56 1 RESISTOR 301 OHMS 0805 102515146T R107
57 1 SWITCH PUSH BUTTON SPST 57502000 SW1
58 2 TRANSFMER 10K-10K THRU-HOLE 3180246 T1,T2
59 2 TRANSFMER 600-600 THRU-HOLE 3180259 T3,T4
60 8 TEST JACK ORANGE 2861965 TP2,TP3,TP5,TP6,TP7,TP8,TP12,TP13
61 1 IC TL16C550CFN 760262 U1
62 1 IC 4053 SO16 53266123 U2
63 2 IC CS4335 SO8 760263 U3,U4
64 1 SOCKET PLCC 32 PIN PLCC SOCKET 539030032T U6 SOCKET
65
66 3 IC NE5532 SO8 760268 U7,U8 ,U5
67 4 IC 74LCX574 SO20 760257 U9,U10,U11,U12
68 1 IC UA7810CKTE SMT 760275 U13
69 2 IC 74LCX541 SO20 760256 U16,U17
70 1 IC ADSP-2186M TQFP100 760319 U18
71 1 IC AT24C16N SO8 511336000T U19
72 1 IC LT1181ACSW 760261 U20
73 1 IC UA7805CKTE SMT 760260T U21
74 2 IC TL084 SO14 4300047 U22,U23

LN,BE

Page 3 of 5

This drawing, written description or specification Is

D

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

75 1 IC CS5330A SO8WB 760264 U25
76 1 IC TPS70158 760306 U26
77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 SOCKET
78 1 IC EPM7032AE PLCC44 760267-3PS U27 (PROGRAMMED)
79 1 32.768MHZ 780186 Y1
80 15 JUMPER JUMPER 2515001001 FOR
81 1 PCB PRINTED CIRCUIT BOAR

750561
82 A/R SOLDER PASTE BE738
83 1 CAP 1000UF ELECT H SIZE 51821526 C49
84 1 FERRITE COMMON MODE 724039 FB20
85 2 RES 8.06K 0805 102515287 R20, R37
86 0 REFERENCE SCHEMATIC 770660

LN,BE

Page 4 of 5

770660

This drawing, written description or specification

is a proprietary product of Telex, Lincoln, NE

and shall not be released, disclosed, nor duplicated

without the written permission of TELEX.

NOTES:

REFERENCE PCB NUMBER :

1

SENSE

IOMS

R-CS1

RD

WR

2

R66

HPTT

J6

1

1

MIC

2

2

GND

3

3

PTT

4

4

EAR

S2S1

NC2NC1

SW1

14

23

CTCSS

3

HNDLINE

A B C D

R139

F3 F4

FIDUCIAL FIDUCIAL

750561

TP12

FB13

FB14

FB15

FB16

FB17

TP9

1

TP101TP11

F2

FIDUCIAL

X5

1

MTHOLE6

MTHOLE6

MTHOLE6

MTHOLE6

X6

X7

X8

FIDUCIAL

MTH189

MTH189

F5

X1

1

X2

1

10UF

+12V

C104

U21

UA7805CKTE

1

IN

0.1UF
C16

+

21

+5V

3

OUT

0.1UF

GND

2

C13

FB18

VDD

C107

+10V

+10V

21

4

6

8

10

12

14

16

18

20

R53

A[0:13]

A0

A1

A2

A3

A4

A5

TP4

R51
10K

U23

2

­1

3

+

TL084

VR2.5

R40

SIDETONE

332

R149

100K

U23

14

TL084

R26

13

-

20K

12

+

VR6

U2

3

4

5

9

D8

D9

D10

D11

D[0:23]

D12

D13

D14

D15

3900PF(OPT)

R50

C38

10K

U23

7

TL084

0.047U

R42

C34

10K

TL084

U23

10K

3

2N3904

Q2

2

U2

1

15

2

10

J4

3

5

7

9

11

13

15

17

19

+10V

681

20K

FB21

R52

21

10K

R54

0.1UF

ICBUTTS

TP13

0.1UF

C44

LINERX

1

RADIORX

J3

12

3

5

7

9

11

13

15

17

19

R43

6

-

10K

5

+

VR6

R41

98

-

10K

10

+

VR6

1UF

1UF

C52

C37

POWERIN

4

6

8

10

12

14

16

18

20

0

R2

R1

FL1B

FL0B

J9

1

1

2

Digital

2

3

3

OUT1

4

4

OUT2

5

5

INP1

Port

6

6

7

7

8

8

0

0

R3

VDD

R4

10K

D5

D12

12

J1

213

0.018UF

0.018UF
C39C40

POWERIN

R47

562

R44

562

10K

10K

R49

R48

C98

21

+

3.3UF

C99

21

+

3.3UF

267K267K

R46

R45

8

5

AOUTL

AOUTR

CS4335

+5V

C36
1UF

C35

0.1UF

7

U4

VA

1

SDATA

2

DEM/SCLK

3

LRCK

4

MCLK

AGND

6

21

21

D10

21

F1

3A

1

2

4

3

R62

R25

47

Leave R1 for 3.3V Parts (L)

Remove for 2.5 V Internal Parts (M)

D11

1000UF

+

21

FB20

VDD

C10

0.1UF

47

C49

47

TP2

C106

+5V

10UF

21

+

C25

0.1UF

7

U25

VA

1

8

AINL

5

AINR

CS5330A

SDATA

2

SCLK

3

LRCK

4

MCLK

AGND

6

TP3

R32

R27

150

150

0.47UF

C27

0.47UF

C22

0.01UF

0.01UF

C24

C21

C109

0.1UF

0.1UF

C108

+12V

UA7810CKTE

1

IN

0.1UF

10UF

+

C103

C15

21

A[0:13]

A5

A3

A4

R-CS0

7

R-CS1

MCLK2

R145

R-CS0

8

R-CS1

9

MCLK2

10

GND10

11 35
12

GND12

13

GND13

14

LRCLK-OFF

15

VCCIO15

16

LRCLK

17

DIV4

R38 4 7

47R146

LRCLK
SCLK

ADC1

MCLK

267K

W-CS0
W-CS1

CS3

+5V

R63

TPS70158

U13

C9

0.1UF

0

U26

1

NC1 NC3

2

VIN1-1

3

VIN1-2

4

MR1

5

MR2

6

EN

7

SEQ

8

GND

9

VIN2-1

10

VIN2-2

+10V

3

OUT

0.1UF

3

2

4

GND2

VCCINT3

U27

CS3B0B1

GND20

W-CS1

GND22

22

0.1UF

R144

GND1

23

1

VCCINT23

VDD

47

R70

C14

RESET

41

40

42

44

43

32MCLK

GND44A3A4

GND42

RESET

RESET

ADC1

DAC1

DAC2

27

2821242526

47

GND

2

6

A5

W-CS0

181920

VDD

5

MAINPLD

C2

VOUT1-1

VOUT1-2

VSENSE1

VSENSE2

VOUT2-1

VOUT2-2

IOMS
SP0-RX
SP0-TX

VCCIO35MCLK

INTR

GND30

INTR

RESET

FS

RD

WR

DIV4

20

19

18

17

16

PG1

15

14

13

12

11

NC2

39
38
37
36

34
33
32
31
30

INTR

29

C111

21

+

+

C110

21

R135

VDD

10UF

+2.5V

10UF

RESET

C7

10K

VDD

2

R138

1

3

0.1UF

1K

Mode Select R's

VDD

R14

10K

D9

R8

10K

R9

10K

R13

EECLK

10K

VDD

Y1

1

4

VDD

3

2

GNDNCOUT

37-5MHZ

+2.5V

VDD

C4

C11

0.1UF

0.1UF

R17

C1

10K

VDD

0.1UF

+10V

R15

R10

R11

10K

10K

10K

U19

18

VCC1NC1

2

NC2

3

NC3

4

GND

SO8NB

AT24C16

TEST

DATA

7
6

CLK

5

A4
A5

A6
A7
A8
A9
A10
A11
A12
A13

EECLK

A[0:13]

R6

EED0

10K

SHEET

A4/IAD3

2

A5/IAD4

3

GND1

4

A6/IAD5

5

A7/IAD6

6

A8/IAD7

7

A9/IAD8

8

A10/IAD9

9

A11/IAD10

10

A12/IAD11

11

A13/IAD12

12

GND2

13

CLKIN

14

XTAL

15

VDDEXT1

16

CLKOUT

17

GND3

18

VDDINT1

19

WR

20

RD

21

BMS

22

DMS

23

PMS

24

IOMS

25

CMS

SHEET

REVISION

REV.

STATUS

REVISIONS

DESCRIPTIONREV.LOC.

ECO NO. DRFT CHKR APP DATE

A RELEASED FOR PILOT BUILD SBC 01/15/01

U6

D0
D1
D2
D3
D4
D5
D6
D7

13
14
15
17
18
19
20
21

09-23-01 SBC 09/11/01B

02-60-02

03-50-02

D8
D9
D10
D11
D12
D13
D14
D15

VDD

C3

+2.5V

C5

D[0:23]

0.1UF

SBCD

0.1UF

02/12/02

04/03/02

1

2

3

A0A1A2

A3

100

979899

96

A0

A1/AD0

PWDACK

A2/AD1

A3/AD2

GND4

IRQ2+PF7

IRQE+PF4

IRQL0+PF5

IRQL1+PF6

303126

27292832333839414036373534

C6

0.1UF

VDD

BGH

GND10

PF0-MODEA

PF1-MODEB

ADSP-2189M

TQFP100

RFS0

TFS0

DR0

DT0

VDD

Emulation Header

1

GND

3

EBG

5

EBR

7

KEY

9

ELOUT

11

EE

13

RESET

PWD

SCLK0

VR6 TO TRACE FROM PLANE AND ADDED FERRITES

C 11-93-01 SBC 11/27/01

U24 TL084 TO U5 NE5532 AND OTHERS

ADDED MISSING TRACE FROM J15 TO C51. FIXED POTS AND IMPROVED INPUT OUTPUT
CAPABILITIES.

E SBC

R138 FROM 10K TO 1K

R19

0.1UF

VDDEXT4

U18

VDDEXT2

C8

EED0

FL0

FL1

87

88

FL0

PF3

PF2-MODEC

RFS1

TFS1

DT1

J8

10K

1

D18

D19

D20

D21

D22

D23

FL1

FL2

D18

D19

D20

D21

D22

D23

GND9

SCLK1

DR1

ECLKEEELIN

ELOUT

GND5

EMS

ERESET

RESET

444543424748504946

2

BG

4

BR

6

EINT

8

ELIN

10

ECLK

12

EMS

14

ERESET

3

2N3904

21

1

2

D[0:23]

D16

D17

76

7778798081828384858689909192939495

D16

D17

D15

751

D15

74

D14

D14

73

D13

D13

72

D12

D12

71

GND8

70

D11

D11

69

D10

D10

68

D9

D9

67

VDDEXT3

66

GND7

65

D8

D8

64

D7

D7/IWR

63

D6

D6/IRD

62

D5

D5/IAL

61

D4

D4/IS

60

GND6

59

VDDINT2

58

D3

D3/IACK

57

D2

D2/IAD15

56

D1

D1/IAD14

55

D0

D0/IAD13

54

BG

53

EBG

52

BR

51

EBR

EINT

D3

Q1

R18

TP1

+10V

21

21

1K

VDD

A0

12

A0

A1

11

A1

A2

10

A2

A3

9

A3

A4

8

A4

A5

7

A5

A6

6

VDD

A[0:13]

C18

0.1UF

D[0:23]

R16

10K

A6

A7

5

A7

A8

27

A8

A9

26

A9

A10

23

A10

A11

25

A11

A12

4

A12

A13

28

A13

D16

29

A14

D17

3

A15

D18

2

A16

D19

30

A17

D20

1

A18

31

WR

24

RD

22

CS

AT29LV020

4

REFERENCE PCB : 750561

RADLINE

R12
100K

-

+

R7

100K

-

+

R20

21

8.06K

1

1

JP7

2

2

5

VR6

8.06K

9

10

VR6

20K

R37

R39

20K

1UF

21

1

1

JP6

2

2

C32

1UF

C41

R36

6

0.018UF

0.018UF
C30C31

R31

R28

562

562

10K

10K

R33R34

C96

3.3UF

21

+

267K

C97

3.3UF

21

+

267K

R30

R29

8

5

AOUTL

AOUTR

CS4335

+5V

C26

1UF

C23

0.1UF

7

U3

VA

1

SDATA

2

DEM/SCLK

3

LRCK

4

MCLK

AGND

6

DAC1

BYPASS CAPS FOR:

C112

0.1UF

C113

0.1UF

C114

U22

U23

0.1UF

C115

U2U7U8

0.1UF

C116

U24

0.1UF

C117

+10V

0.1UF

C19

1UF

R21R22

C20

10K

10K

1UF

+5V

R23

10K

12

13

R24

30K

CAD GENERATED DRAWING

CBA

VR6

TL084

+

3

1

-

2

U22

0.1UF

VR2.5

TL084

+

14

-

U22

0.1UF

C48

21

DATE

C45

21

879457

MODEL

NEXT

ASS'Y

CHK TITLE

DEE SBC

01/15/2001

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

APPDR

VEGA

DSP 223

R

SCHEMATIC

DWG. NO.

SIZE

770660

D

D

1

SHT.

2

OF

4

R56

10K

R55

10K

U2

13

12

11

3

2N3904

1

Q3

2

14

LINETX

RADIOTX

1800PF

C29

U22

7

TL084

1800PF

C33

U22

8

TL084

770660

This drawing, written description or specification

is a proprietary product of Telex, Lincoln, NE

and shall not be released, disclosed, nor duplicated

without the written permission of TELEX.

NOTES:

REFERENCE PCB NUMBER :

1

D1

21

D4

21

D8

2

JP2

3

JP3

JP4

JP5

4

REFERENCE PCB : 750561

21

PTT-NC

PTT-NO

PTT-COM

1

2

MON-NC

MON-NO

MON-COM

1

2

F1-NC

F1-NO

F1-COM

1

2

F2-NC

F2-NO

F2-COM

1

2

+5V +12V

321

A

B

A B C D

J16

D13

K1

+

83

6

NC

1

10

D14

K2

38

+

6

NC

1

5

10

D15

K3

+

83

6

NC

1

5

10

D16

K4

38

+

6

NC

1

5

10

R-CS0

R86

R85

1K

R82

1K

1K

2N3904

2N3904

2N3904

Q14

2N3904

Q12

R80

2N3904

Q11

+12V

1K

2N3904

Q8

Q6

Q5

FB25

3

1

2

FB26

3

1

2

FB27

3

1

2

R73

3

1

2

3

1

2

3

1

2

+12V

1K

21

DIG1

R84

10K

R83

1K

21 DIG3

2N3904

R81

21

R79

R72

R69

10K

R67

10K

Q13

10K

R78

1K

DIG5

10K

10K

+12V

2N3904

Q10

1K

2N3904

Q7

2N3904

Q4

Q16

5

+12V

+12V

+12V

D[0:23]

D13

7

D5

D14

8

D6

D15

9

VDD

D7

10

RCLK

11

SIN

12

NC2

13

SOUT

14

CS0

15

CS1

CS3

16

CS2

17

BAUDOUT

MCLK2

Q15

+12V

R71

2N3904

2N3904

3

2

3

1K

2N3904

Q9

3

2

3

2

R74

2

3

2

0.1UF

C69

D12

65432

TL16C550C

XIN

3

2

3

2

D11

XOUT

191821

FB23

1

FB24

1

1

1

D10

PLCC44

U1

WR1

WR

D9

WR2

HNDLINE

RADLINE

1

D8

22

FB22

1

21 DIG2

R88

10K

DIG4

21

R77

10K

1

R76

10K

R65

10K

VDD

44

43

1

D0D1D2D3D4

VCC

NC1

VSS

RD1

NC3

232027

25

24

RD

21 DIG0

R87

10K

R75

10K

R99

10K

414240

RI

DCD

DSR

DDIS

RD2

TXRDY

28

26

CTS

ADS

OUT1

OUT2

INTRPT
RXRDY

VDD

0.1UF

C62

U10

1

20

OE

VCC

2

19

D0

Y0

3

18

D1

Y1

4

17

D2

Y2

5

16

D3

Y3

6

15

D4

Y4

7

14

D5

Y5

8

13

D6

Y6

9

12

D7

Y7

10

11

GND

CLK

74LCX574

W-CS0

VDD

0.1UF

C61

U9

1

20

OE

VCC

2

19

D0

Y0

3

18

D1

Y1

4

17

D2

Y2

5

16

D3

Y3

6

15

D4

Y4

7

14

D5

Y5

8

13

D6

Y6

9

12

D7

Y7

10

11

GND

CLK

74LCX574

W-CS0

RESET

39

MR

38
37

DTR

36

RTS

35
34

NC4

33

A[0:13]

32

A0

31

A0

A1

30

A1

A2

29

A2

INTR

19

OE2

D8

18

O0

17

D9

O1

16

D10

O2

15

D11

O3

14

D12

O4

D13

13

O5

12

D14

D[0:23]

O6

11

D15

O7

D8

D9

D10

D11

D[0:23]

D12

D13

D14

D15

D[0:23]

D16

D17

D18

D19

D[0:23]

D20

D21

D22

D23

R94

1

10K

D[0:23]

Serial Interface

D8

D9

D10

D11

D12

D13

D14

D15

U17

10K

2

D16

D17

D18

D19

D20

D21

D22

D23

FL0

0.1UF

C76

OE1

74LCX541

R95

3

2N3904

Q33

FL1

1
2

Y0

3

Y1

4

Y2

5

Y3

6

Y4

7

Y5

8

Y6

9

Y7

10K

PIN1OUT

VDD

R151

10K

1

OE

2

D0

3

D1

4

D2

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND

74LCX574

1

2

3

4

5

6

7

8

9

10

0.1UF

1

OE1

2

Y0

3

Y1

4

Y2

5

Y3

6

Y4

7

Y5

8

Y6

9

Y7

74LCX541

0.1UF

C85

U11

0.1UF

OE

D0

D1

D2

D3

D4

D5

D6

D7

GND

74LCX574

C66

U16

R96

10K

C94

U12

100K

6

-

5

+

R147

21

VR2.5

C47

220PFR57

R58

100K

-

3

+

C12

220PF

R98

U5

1

NE5532

0.1UF

R97

100K

10K

U72

NE5532

21

+

C60

VR2.5

1

100K

2

-

3

SHEET

VR6

R150

10K

10K

R106

21

27

D17

0.1UF

U20

LT1181A

J2

2

1

1

23456

15161718192021222324251413

PTT-COM

PTT-NC

PTT-NO

MON-NC

MON-NO

DIG5

R116

3

R115

10K

10K

10K

10K

C72

15

GND

2N3904

1

Q22

2

R112

R110

10K

R129

10K

3

1

2

3

1

2

R140

1

2

3

1

2

R126

1

10K

R124

1

10K

R142

1

2

+5V

16

6

V-

VCC

4

C2+

5

C2-

14
710

13

R1IN

8

R2IN

MON-COM

+12V

1K

R113

2N3904

Q20

R111

2N3904

Q19

R141

3

2N3904

Q31

R130

2N3904

Q29

R127

3

2N3904

Q27

2

R125

3

2N3904

Q26

2

R143

3

2N3904

Q32

76543

8

910112612

9

8

7

F1-NC

F1-NO

F1-COM

F2-NC

F2-NO

F2-COM

POWERIN

DIG0

DIG1

DIG2

+12V

1K

+12V

1K

+12V

1K

+12V

1K

+12V

1K

+12V

1K

+12V

1K

C70

0.1UF

C67

0.1UF

C73 220PF

220PFC65

C64 220PF

220PFC63

SENSE

R89

R90

10K

10K

VDD

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

W-CS1

VDD

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

W-CS1

VDD

19

OE2

18

O0

17

O1

16

O2

15

O3

FL0B

14

O4

FL1B

13

O5

12

O6

11

O7

D7

ICBUTTS

D6

HPTT

D18

DIG2

D19

DIG3

D20

DIG4

VDD

R91

R92

R93

10K

10K

+12V

R117

3

1K

R118

10K

R103

10K

10K

2N3904

1

Q23

2

+12V

R114

3

1K

R119

10K

R108

10K

R132

R133

10K

R122

10K

R121

10K

2N3904

1

Q21

2

+12V

R109

1K

3

2N3904

1

Q18

2

+12V

R102

31K

2N3904

1

Q17

2

+12V

R131

3

1K

2N3904

1

Q30

2

+12V

R128

3

1K

2N3904

1

Q28

2

+12V

R123

3

1K

2N3904

1

Q25

2

+12V

R120

31K

2N3904

1

Q24

2

+5V

C68

0.1UF

2

V+

1

C71

0.1UF

TXD
RTS

RXD
CTS

C1+

3

C1-

11

T1IN T1OUT
T2IN T2OUT

12

R1OUT

9

R2OUT

27

J5

GROUND

PTTCOM

PTTNO

POWER

RAD-RX

RAD-TX

21435

6

6

b1

1

A

2

B

3

131214

a2

f2

g2

e2 c2

G2D2E2

7

J11

C2A2DP2

53412

POWERIN

LINETX

C17

21

220PF

R68

U5

RADIORX

7

NE5532

C95

0.1UF

100K

VR6

LINERX

10

B2

b2

D2

RADIOTX

9118

13142524232221201918171615

RTDB25

122611

10

FB19

TX-RAD+

DIG3

DIG4

DIG5

CTCSS

RX-RAD-

TX-RAD-

RX-RAD+

181

16

15

17

G1B1GND2F2GND1

A1

F1

a1

f1

g1

e1 c1

d1 d2

DP1C1D1

E1

23456

J7

10

1

FB8

FB6

FB7

FB5

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

11

RTDB9

CAD GENERATED DRAWING

SHEET

REVISION

REV.

STATUS

A SBC 01/15/01

RELEASED FOR PILOT BUILD

REVISIONS

DESCRIPTIONREV.LOC.

REFER TO SHEET 1 FOR ECO HISTORY.

TX Impedance
600 Ohm: J18=A J17=A
1200 Ohm:J18=B J17=A
1800 Ohm: J18=A J17=B

C80

220PF

R100

100K

U82

-

3

+

21

10K

R137

21

10K

1

NE5532

10K

21

R148

R61

150

R35

15

J24, J25 A=Bypass, B=Transformer

21

R136

R101

33K

VR6

4

5

J14, J15, J22, J23 A=Bypass, B=Transformer

J26

1

A

2

B

3

R59

33K

VR6

J24

1

A

2

B

3

R107

301

C79

220PF

R104

33K

6

U8

-

5

+

NE5532

RX Impedance-Line 1
600 Ohm: J19=A
10K Ohm: J19=B

10K:10K

3

2

16

T2

C46

220PF

R60

33K

6

U7

-

5

+

NE5532

10K:10K

4

5

T1

2400 Ohm: J18=B J17=B

7

J19

A

123

604

R134

J14

1

A

2

B

3

J22

7

J25

1

A

2

B

3

3

2

16

B

A

B

J27

1

A

2

B

3

4

5

61

0.1UF

0.1UF

C28

1UF

4

5

61

1

2

3

600:600

3

2

T4

L7

820UH

C90

L8

820UH

C86

21

600:600

3

2

T3

J13

A

123

604

RX Impedance
8 Ohm: J12=A, J13=B
600 Ohm: J12=B,J13=A
10K Ohm: J12,J13=B

R105

0.1UF

0

C81

0.1UF

FB12

0.001UF

0.01UF

C93

C91

FB11

0.01UF

0.001UF

C87

C89

J15

1

A

2

B

3

J23

1

A

2

B

3

B

R64

1/2W

R5

10

321

A

B

J12

CHK TITLE

DEE SBC

DATE

01/15/2001

MODEL

879457

NEXT

ASS'Y

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

820UH

820UH

C78

L5

L6

120PF

120PF

ECO NO. DRFT CHKR APP DATE

1

FB10

0.01UF

0.001UF

C82

0.01UF

C77

1

C92

2

3

1

C88

2

3

0.001UF

C51

120PF

C84

C83

FB9

0.001UF
120PF

C74

C75

1

TP7

1

J21

J20,J21=A 2W

A

J20,J21=B 4W

B

J20

A

B

FB2

120PF

C50

F6

F9

E1

E2

PIN1OUT

FB1

0.001UF
120PF

C42

FB4

0.001UF

C59

FB3

0.001UF

C55

120PF

F7

120PF

F8

FB29

21

FB28

21

21

C43

C58

C54

E3

E4

FB31

TX-RAD+

TX-RAD-

RX-RAD+

RX-RAD-

TP8

Line

J10

1

1

2

2

3

3

RX+

4

4

TX+

5

5

TX-

6

6

RX-

7

7

8

8

FB30

21

1

1

2

+12V

2

2

JP1

TP51

1

TP6

3

Radio

APPDR

VEGA

DSP 223

R

SCHEMATIC

DWG. NO.

SIZE

770660

D

SHT.

22

OF

4

CBA

D

24 Vega DSP-223

9.3 PCB P/N 750561 Revision G

V

A

A

)

3

c

9

0

A

)

6

0

A

A

A

K

A

A

t

t

S

2

A

This drawing, written description or specification Is
a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE:01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHK: APPD:

PART NO:

REV LEVEL:

879457

P

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

REVISIONS

RE

RELEASED FOR PILOT BUILD
B U18 TO 760319 (ADSP-2185M
C DELETED 7602533PS AND ADDED TO LINCOLN BILL DSP22
D R95 NOT TO BE INSTALLED
E CHANGE J7 FROM 59926016 TO 64014

F ITEM 17 TELEXPN 7602702 CHAGED TO TELEXPN 5868000

G

DDED C45,C48,C49, FB20, FB21-FB31 (PCB TO REV D

H ITEM 1 - DELETED C28, C32

ITEM 2 - ADDED C28

ITEM 10 - ADED C12,C17

ITEM 38 - DELETED R20 ADDED R63,R95,R9

ITEM 39 - ADDED R106,R136,R137,R147,R148,R15

ITEM 49 - DELETED R37,R63

ITEM 66 - ADDED U5

ITEM 74 - DELETED U24

DDED ITEM 85 - R20, R37
DDED ITEM 86 - SCHEMATIC REFERENCE

PRINTED CIRCUIT BOARD TO REV E.

J

DDED D18,D19,D20 TO ITEM 19. R95,R96 CHANGED TO 10
ND ADDED TO ITEM 39. R151 ADDED TO ITEM 39

R63 TO 267K. C37 TO 1UF AND ADDED TO ITEM 2.

DDED C32,C41,C52 TO ITEM 2. ITEM 1 TO QTY OF 49

ITEM 38 TO QTY OF 11. PCB TO REV F.

DESCRIPTION ECO NO DATE

01-93-01 01/17/01
02-47-01 02/20/01
03-39-01 03/14/01
04-01-01 04/02/01
04-47-01 04/12/01
04-83-01 04/18/01
09-23-01 09/11/01
11-93-01 11/27/01

02-60-02 02/12/02

PPD
SBC
SBC
SBC

sb
SBC
SBC
SBC

ON NEXT REV CHANGE THE FOLLOWING
item 3 use 102881150
Item 8 use 102881138

K R138 FROM 10K TO 1K. ITEM 3 TO 102881150T, ITEM 8 TO 102881138T

L ITEM 78 - DELETE 7602673PS - ADD 760519-3P

M REVERSE CHANGE 04-20-0

ITEM 41 CHANGED TO NEW PART # 724097

N

ITEM2 TO QTY OF 10, ITEM 5 TO QTY OF 0, ITEM 10 TO QTY OF 13

P

03-50-02 03/19/02
04-20-02 04/10/02
05-12-02 05/03/02
11-56-02 11/25/02
11-37-02 11/25/02

ITEM 25 CHANGED PART # TO 710109, ITEM 37 QTY TO 34

ITEM 39 QTY TO 79

ITEM 54 TO QTY OF 28, ITEM 68 CHG PART # TO 760250T

DDED ITEM 87
ITEM 38 CHANGED QTY TO 12
ITEM 49 CHANGED QTY TO 5

LN,BE PAGE 1 OF 5

,

,

4

This drawing, written description or specification Is

P

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

1 49 CAPACITOR 0.1UF 0805 102881186T C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,

C13,C14,C15,C16,C18,C23,C25,
C35,C44,C60,C61,C62,C66,
C67,C68,C69,C70,C71,C72,C76,C78,C81,
C85,C86,C90,C94,C95,C107,C108,C109,
C112,C113,C114,C115,C116,C117

C45,C48
2 10 CAPACITOR 1UF 0805 102881875T C19,C20,C26,C36, C28, C32, C37, C41, C52, C53
3 6 CAPACITOR 0.01UF 0805 102881150T C21,C24,C77,C82,C87,C91
4 2 CAPACITOR 0.47UF 1210 102881445T C22,C27
5 CAPACITOR 1800PF 0805
6 4 CAPACITOR 0.018UF 0805 102881126T C30,C31,C39,C40
7 1 CAPACITOR 0.047UF 0805 102881185T C34
8 8 CAPACITOR 0.001UF 0805 102881138T C42,C51,C55,C59,C74,C84,C89,C93
9 8 CAPACITOR 120PF 0805 102881100T C43,C50,C54,C58,C75,C83,C88,C92

C46,C47,C63,C64,C65,C73,C79,C80,C12,C17,C29

10 13 CAPACITOR 220PF 0805 102881103T

C33,C56
11
12 4 CAPACITOR 3.3UF TANT. B SIZE 102877021T C96,C97,C98,C99
13 5 CAPACITOR 10UF TANT. B SIZE 102877065T

C103,C10

,C106,C110,C111
14 1 LED GREEN RT ANGLE 1610628 D1
15 1 SOCKET 18 PIN RT ANGLE 640137 FOR D2
16 1 LED DUAL 7 SEGMENT GRN 760309 D2
17 1 LED RED LED 58680000 D3
18 1 LED RED RT ANGLE 1610630 D4
19 11 DIODE MMBD914 SOT-23 58711000T D5,D6,D7,D13,D14,D15,D16,D17,D18,D19,D20
20 1 LED YELLOW RT ANGLE 1610631 D8
21 1 DIODE MMBZ5V6ALT1 SOT-23 508046000T D9
22 3 DIODE SMD4004 16016481SMT D10,D11,D12
23 4 THYRISTOR TVB230-050 710106 E1,E2,E3,E4
24 1 FUSE 1.5A SMT FUSE 7101051 F1
25 4 POLYSWITCH TECCOR F1250T 710109T F6,F7,F8,F9
26 24 FERRITE FERRITE BEAD 723511T FB1,FB2,FB3,FB4,FB5,FB6,FB7,FB8,FB9,

FB10,FB11,FB12,FB19, FB21,FB22,FB23,FB24,

FB25,FB26,FB27,FB28,FB29,FB30,FB31
27 1 CONN DC PWR JACK 2.5MM 59697000 J1
28 1 CONN 25 PIN DB25 FEMALE 640136 J2
29 2 HEADER 20 PIN SMT 640126 J3,J4
30 1 HEADER 6 PIN RT ANG LEADED 2862056 J5
31 1 CONN RJ-4 PIN CONN LEADED 640123 J6
32 1 CONN 9 PIN DB9 FEMALE 640149 J7
33 2 CONN 8 PIN MODULAR JACK 2862013 J9,J10
34 15 HEADER 3 PIN SMT 640124 J11,J12,J13,J14,J15,J16,J19,J20,J21,

J22,J23,J24,J25,J26,J27
35 4 RELAY SPDT SMT 730142 K1,K2,K3,K4
36 4 INDUCTOR 820UH 723510 L5,L6,L7,L8
37 34 TRANSISTOR 2N3904 SOT-23 54671200T Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,

Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20,Q21,

Q22,Q23,Q24,Q25,Q26,Q27,Q28,Q29,Q30,

Page 2 of 5

LN,BE

This drawing, written description or specification Is

P

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

Q31,Q32,Q33,Q34
38 12 RESISTOR 0 OHM 0805 102506000T R1,R2,R3,R105,R139,FB13,FB14,FB15,FB16,FB17

,FB18,R154
39 79 RESISTOR 10K 0805 102515300T R4,R6,R8,R9,R10,R11,R13,R14,R15,R16,R17,R18

R21,R22,R23,R33,R34,R41,R42,R43,R48,R49,R50

R51,R53,R54,R55,R56,R65,R67,R69,R72,R75,

R76,R77,R79,R81,R84,R87,R88,R89,R90

R91,R92,R93,R94,R99,R103,R108,R110,R112,

R115,R118,R119,R121,R122,R124,R126

R129,R132,R133,R135,R140,R142,

R106,R136,R137,R147,R148,R150,R95,R96,R151

R152,R153,R156,R157,R159,R160
40 1 RESISTOR 10 OHMS 2010 102405100T R5
41 5 RES VAR 100K LINEAR H.ADJUST 724097 R7,R12,R68,R98,R149
42 1 RESISTOR 30K 0805 102515346T R24
43 7 RESISTOR 47 OHMS 0805 102515065T R25,R38,R62,R70,R144,R145,R146
44 4 RESISTOR 20K 0805 102515329T R26,R36,R39,R52
45 3 RESISTOR 150 OHMS 0805 102515117T R27,R32,R61
46 4 RESISTOR 562 OHMS 0805 102515172T R28,R31,R44,R47
47 5 RESISTOR 267K 0805 102515441T R29,R30,R45,R46,R63
48 1 RESISTOR 15 OHMS 0805 102515017T R35
49 5 RESISTOR 33K 0805 102515350T R59,R60,R101,R104,R155
50 1 RESISTOR 332 OHMS 0805 102515150T R40
51 4 RESISTOR 100K 0805 102515400T R57,R58,R97,R100
52 2 RESISTOR 604 OHMS 0805 102515175T R64,R134
53 1 RESISTOR 681 OHMS 0805 102515180T R66
54 28 RESISTOR 1K 0805 102515200 R19,R71,R73,R74,R78,R80,R82,R83,R85,R86,

R102,R109,R111,R113,R114,R116,R117,

R120,R123,R125,R127,R128,R130,R131,

R141,R143, R138, R162
55
56 1 RESISTOR 301 OHMS 0805 102515146T R107
57 1 SWITCH PUSH BUTTON SPST 57502000 SW1
58 2 TRANSFMER 10K-10K THRU-HOLE 3180246 T1,T2
59 2 TRANSFMER 600-600 THRU-HOLE 3180259 T3,T4
60 8 TEST JACK ORANGE 2861965 TP2,TP3,TP5,TP6,TP7,TP8,TP12,TP13
61 1 IC TL16C550CFN 760262 U1
62 1 IC 4053 SO16 53266123 U2
63 2 IC CS4335 SO8 760263 U3,U4
64 1 SOCKET PLCC 32 PIN PLCC SOCKET 539030032T U6 SOCKET
65
66 3 IC NE5532 SO8 760268 U7,U8 ,U5
67 4 IC 74LCX574 SO20 760257 U9,U10,U11,U12
68 1 IC LM317M 760250T U13
69 2 IC 74LCX541 SO20 760256 U16,U17
70 1 IC ADSP-2186M TQFP100 760319 U18
71 1 IC AT24C16N SO8 511336000T U19
72 1 IC LT1181ACSW 760261 U20

Page 3 of 5

LN,BE

This drawing, written description or specification Is

D

P

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

N

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

73 1 IC UA7805CKTE SMT 760260T U21
74 2 IC TL084 SO14 4300047 U22,U23
75 1 IC CS5330A SO8WB 760264 U25
76 1 IC TPS70158 760306 U26
77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 SOCKET
78 1 IC EPM7032AE PLCC44 760267-3PS U27 (PROGRAMMED)
79 1 32.768MHZ 780186 Y1
80 15 JUMPER JUMPER 2515001001 FOR
81 1 PCB PRINTED CIRCUIT BOAR

750561
82 A/R SOLDER PASTE BE738
83 1 CAP 1000UF ELECT H SIZE 51821526 C49
84 1 FERRITE COMMON MODE 724039 FB20
85 2 RES 8.06K 0805 102515287 R20, R37
86 0 REFERENCE SCHEMATIC 770660
87 1 RES 6.98K 0805 102515281T R161

Page 4 of 5

LN,BE

A B C D

SHEET

770660

This drawing, written description or specification

is a proprietary product of Telex, Lincoln, NE

and shall not be released, disclosed, nor duplicated

without the written permission of TELEX.

NOTES:

TP10

1

REFERENCE PCB NUMBER :

750561

TP12

TP9

1

FB13

FB14

1

FB15

FB16

TP11

1

X5

MTHOLE6

X6

MTHOLE6

X7

MTHOLE6

X8

MTHOLE6

FB17

FB18

F3 F4

FIDUCIAL FIDUCIAL

F2

FIDUCIAL

F5

FIDUCIAL

X1

MTH189

X2

MTH189

C109

0.1UF

+12V

+5V

U21

UA7805CKTE

1

IN

1

1

10UF

C104

+

21

0.1UF
C16

2

GND

OUT

3

0.1UF
C13

0.1UF

C108

1

NC1 NC3

2

VIN1-1

3

VIN1-2

4

MR1

5

MR2

6

EN

7

SEQ

8

GND

9

VIN2-1

10

VIN2-2

TPS70158

R139

0

U26

VOUT1-1

VOUT1-2

VSENSE1

PG1

RESET

VSENSE2

VOUT2-1

VOUT2-2

NC2

VDD

21

+

R135

+

C110

21

10UF

10K

+2.5V

10UF

R138

1K

C111

20

19

18

17

16

15

14

13

12

11

REV.

SHEET

REVISION

STATUS

REVISIONS

DESCRIPTIONREV.LOC.

ECO NO. DRFT CHKR APP DATE

A RELEASED FOR PILOT BUILD SBC 01/15/01

VR6 TO TRACE FROM PLANE AND ADDED FERRITES

C 11-93-01 SBC 11/27/01

U24 TL084 TO U5 NE5532 AND OTHERS

ADDED MISSING TRACE FROM J15 TO C51. FIXED POTS AND IMPROVED INPUT OUTPUT
CAPABILITIES.

E

R138 FROM 10K TO 1K

F

INCREASED LINE SENSITIVITY AND CHANGE 10V REG TO LM317

09-23-01 SBC 09/11/01B

02-60-02 SBCD

03-50-02 04/03/02

SBC

02/12/02

11-37-02 11/19/02

1

VDD

Mode Select R's

R14

VDD

RESET

C7

2

3

0.1UF

10K

1

D9

R8

A[0:13]

A3

100

A0

A1

A2

97

98

99

96

A0

10K

R17

VDD

10K

C4

R13

10K

1

NC

2

GND

37-5MHZ

R9

10K

Y1

C11

0.1UF

R10

10K

EECLK

+2.5V

R11

VDD

4

VDD

3

OUT

0.1UF

10K

R15

10K

A4
A5

A6
A7
A8
A9
A10
A11
A12
A13

A4/IAD3

2

A5/IAD4

3

GND1

4

A6/IAD5

5

A7/IAD6

6

A8/IAD7

7

A9/IAD8

8

A10/IAD9

9

A11/IAD10

10

A12/IAD11

11

A13/IAD12

12

GND2

13

CLKIN

14

XTAL

15

VDDEXT1

16

CLKOUT

17

GND3

18

VDDINT1

19

WR

20

RD

21

BMS

22

DMS

23

PMS

24

IOMS

25

CMS

A2/AD1

A3/AD2

IRQE+PF4

IRQL0+PF5

26

272928

A1/AD0

GND4

IRQL1+PF6

C6

0.1UF

VDD

C1

0.1UF

U19

18
2

NC2

3

NC3

4

GND

SO8NB

VCC1NC1

TEST

CLK

DATA

7
6
5

EECLK

R6

EED0

10K

AT24C16

VDD

J4

SENSE

3

5

7

9

IOMS

R-CS1

RD

WR

2

+10V

11

13

15

17

19

21

4

6

8

10

12

14

16

18

20

A[0:13]

D8

D[0:23]

D9

D10

D11

D12

D13

D14

D15

A0

A1

A2

A3

A4

A5

TP4

J3

12

3

5

7

9

11

13

15

17

19

4

6

8

10

12

14

16

18

20

R1

FL0B

POWERIN

Leave R1 for 3.3V Parts (L)

J9

1

1

2

2

3

3

OUT1

4

4

OUT2

5

5

INP1

6

6

7

7

8

8

0

0

0

R2

R3

VDD

Digital

Port

21

D12

D10

12

21

F1

3A

1

R4

FL1B

10K

Remove for 2.5 V Internal Parts (M)

21

D11

1000UF

2

FB20

+

21

C49

10UF

+

21

A[0:13]

C103

D5

R51

2

3

R40

332

10K

-

+

10K

U23

1

TL084

SIDETONE

R160

R26

20K

3900PF(OPT)

R50

C38

10K

U23

7

TL084

6

-

5

+

0.047U

R42

C34

10K

98

-

10

+

TL084

U23

VR6

VR6

R43

10K

R41

10K

C52

1UF

1UF

C37

0.018UF

0.018UF
C39C40

POWERIN

R47

562

R44

562

21

3.3UF

R49

10K

21

3.3UF

R48

10K

C98

C99

+

+

267K267K

R46

R45

J1

4

3

213

7
8

9
10
11 35
12
13
14
15
16
17

R38 47

8

AOUTL

5

AOUTR

CS4335

+5V

7

VA

AGND

6

C36

1UF

C35

0.1UF

U4

SDATA

DEM/SCLK

LRCK

MCLK

R-CS0

R-CS1

MCLK2

VDD

C10

0.1UF

1

2

3

4

R62

47

R145

47

47R146

R25

47

MCLK
LRCLK
SCLK

681

J6

HPTT

1

1

MIC

2

2

GND

3

3

PTT

4

4

EAR

S2S1

NC2NC1

14

SW1

23

R66

R52

20K

TP13

0.1UF

C107

VR2.5

ICBUTTS

220PF

C56

R149

2

CTCSS

FB21

21

0.1UF

C44

3

U23

14

TL084

100K

31

13

-

12

+

VR6

U2

LINERX

+10V

R53

3

4

5

9

10K

TP2

R32

150

C27

0.47UF

0.01UF
C24

+5V

C106

10UF

+

C25

+5V

21

267K

0.1UF

A3

A4

A5

R-CS0
R-CS1
MCLK2
GND10

GND12
GND13
LRCLK-OFF
VCCIO15
LRCLK
DIV4

W-CS0
W-CS1

CS3

R63

+12V

C15

LM317

3

IN

VDD

C9

0.1UF

6

5

A3

A4

A5

MAINPLD

W-CS1

W-CS0

181920

C2

0.1UF

U13

R161

3

4

GND2

VCCINT3

U27

CS3

GND20

22

21

R144

OUT

ADJ

1

6.98K

44

2

1

GND44

GND1

DAC2

GND22

VCCINT23

23

242526

VDD

47

R70

47

2

42

43

32MCLK

GND42

RESET

ADC1

DAC1

27

RESET

41

40

RESET

B0

B1

28

R162

SP0-RX

SP0-TX

VCCIO35MCLK

GND30

+10V

1K

+

C14

21

39

FS

38

IOMS

37
36

34

RD

33

WR

32

INTR

31

DIV4

30
29

INTR

1UF

INTR

VDD

92

93

94

95

BGH

GND10

PWDACK

PF0-MODEA

PF1-MODEB

ADSP-2189M

TQFP100

DR0

DT0

IRQ2+PF7

RFS0

TFS0

30

31

32

33

34

VDD

Emulation Header

1

GND

3

EBG

5

EBR

7

KEY

9

ELOUT

11

EE

13

RESET

90

91

PWD

VDDEXT4

U18

VDDEXT2

SCLK0

363735

C8

0.1UF

EED0

FL0

FL1

87

88

86

89

FL0

FL1

PF3

PF2-MODEC

DR1

DT1

RFS1

TFS1

383941

40

J8

85

FL2

GND5

D22

D23

83

84

D23

SCLK1

42

ERESET

TP1

D20

D21

81

82

D20

D21

D22

EMS

ERESET

RESET

444543

BG

BR

EINT

ELIN

ECLK

EMS

1

D19

79

80

D19

GND9

ECLKEEELIN

474850

46

2

4

6

8

10

12

14

R18
10K

D17

D18

77

78

D18

ELOUT

49

D16

76

D17

21

D16

VDDEXT3

D7/IWR

D6/IRD

D5/IAL

VDDINT2

D3/IACK
D2/IAD15
D1/IAD14
D0/IAD13

EINT

1

D[0:23]

D15
D14
D13
D12

GND8

D11
D10

D9

GND7

D8

D4/IS

GND6

BG

EBG

BR

EBR

Q1

D3

3

2N3904

2

751
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51

D15
D14
D13
D12

D11
D10
D9

D8
D7
D6
D5
D4

D3
D2
D1
D0

R19

21

VDD

1K

21

VDD

+10V

C18

R16

10K

A[0:13]

0.1UF

D[0:23]

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
D16
D17
D18
D19
D20

U6

12

A0

11

A1

10

A2

9

A3

8

A4

7

A5

6

A6

5

A7

27

A8

26

A9

23

A10

25

A11

4

A12

28

A13

29

A14

3

A15

2

A16

30

A17

1

A18

31

WR

24

RD

22

CS

AT29LV020

D0
D1
D2
D3
D4
D5
D6
D7

13

D8

14

D9

15

D10

17

D11

18

D12

19

D13

20

D14

21

D15

VDD

C3

+2.5V

C5

D[0:23]

0.1UF

0.1UF

2

3

HNDLINE

R54

10K

1

RADIORX

+10V

3

2N3904

Q2

2

TP3

C22

U2

1

15

2

10

220PF

R27

150

0.47UF

0.01UF
C21

8

AINL

5

AINR

CS5330A

7

VA

AGND

6

0.1UF

U25

SDATA

SCLK

LRCK

MCLK

1

2

3

4

ADC1

+10V

C29

R20

1

14

VR6

VR2.5

0.1UF

21

C45

0.1UF

21

C48

MODEL

879457

NEXT

ASS'Y

DEE SBC

DATE

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

CHK TITLE

APPDR

01/15/2001

R

SIZE

D

VEGA

DSP 223

SCHEMATIC

DWG. NO.

770660

SHT.

1

OF

4

2

8.06K

R36

20K

R37

R39

20K

21

+5V

7

VA

AGND

6

C26

1UF

C23

0.1UF

U3

SDATA

DEM/SCLK

LRCK

MCLK

1

2

3

4

DAC1

1

1

JP7

2

2

C41

0.018UF

1UF

R31

562

10K

21

1

1

JP6

2

2

C32

0.018UF

1UF

C30C31

R28

562

10K

C96

3.3UF

21

+

267K

R34

C97

3.3UF

21

+

267K

R33

R30

R29

8

AOUTL

5

AOUTR

CS4335

BYPASS CAPS FOR:

U7U8U22

U2

0.1UF

C112

0.1UF

C113

0.1UF

C114

U23

0.1UF

C115

U24

0.1UF

C116

+10V

C19

0.1UF

C117

1UF

R21R22

C20

10K

10K

1UF

+5V

R23

R24

10K

30K

TL084

+

3

-

2

U22

TL084

+

12

-

13

U22

CAD GENERATED DRAWING

R56

10K

C33

2

U22

7

TL084

R12

100K

31

6

-

5

+

RADLINE

R55

10K

4

3

1

2N3904

Q3

2

RADIOTX

LINETX

220PF

R152

10K

VR6

8.06K

R153

10K

VR6

REFERENCE PCB : 750561

R7

100K

2

TL084

U22

8

31

9

-

10

+

CBA

D

A B C D

VDD

770660

This drawing, written description or specification

0.1UF

C62

U10

74LCX574

0.1UF

C61

U9

74LCX574

A[0:13]

R-CS0

D8
D9
D10
D11
D12
D13
D14

D[0:23]

D15

1

OE

D0

D1

D2

D3

D4

D5

D6

D7

GND

OE

D0

D1

D2

D3

D4

D5

D6

D7

GND

3

2N3904

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

D8

D9

D10

D11

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D22

D23

R94

10K

Q34

2

Serial Interface

19
18
17
16
15
14
13
12
11

D[0:23]

D[0:23]

1

is a proprietary product of Telex, Lincoln, NE

and shall not be released, disclosed, nor duplicated

without the written permission of TELEX.

NOTES:

REFERENCE PCB NUMBER :

3

2

FB23

1

FB24

3

2

1

D11

D10

D3

PLCC44

U1

XOUT

20

191821

1

1

D9

D2

WR1

D1

WR2

FB22

1

21 DIG2

DIG4

21

HNDLINE

RADLINE

1

1

VDD

D8

44

1

D0

NC1

NC3

VSS

23

22

24

21 DIG0

R87

R88

10K

R77

10K

R75

10K

R76

10K

R65

10K

R99

10K

43

RI

VCC

DCD

DDIS

RD2

RD1

25

26

10K

414240

CTS

DSR

ADS

TXRDY

27

28

MR

OUT1

DTR

RTS

OUT2

NC4
INTRPT
RXRDY

A0
A1
A2

R157

10K

39
38
37
36
35
34
33
32
31
30
29

VDD

W-CS0

VDD

W-CS0

RESET

A0
A1
A2

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

1

DIG1

R86

1K

2N3904

Q15

R83

1K

3

2N3904

Q13

2

R78

1K

3

2N3904

Q10

2

+12V

R74

1K

2N3904

Q9

+12V

R71

1K

3

2N3904

1

+5V +12V

R85

1K

3

2

1

A

B

J16

R82

1K

3

2N3904

Q14

3

2N3904

Q12

R80

1K

3

2N3904

Q11

+12V

D1

21

D4

21

D8

21

2

R73

1K

2N3904

Q8

3

FB25

21

R84

1

2

2

FB27

2

2

10K

FB26

21 DIG3

R81

1

10K

21

DIG5

R79

1

10K

R72

1

10K

Q7

2N3904

Q6

3

R69

1

2

10K

2

3

2N3904

Q4

2

3

2N3904

Q16

2

D13

2N3904

Q5

+12V

3

R67

1

2

10K

K1

JP2

83

6

NC

PTT-NC

PTT-NO

PTT-COM

1

2

1

10

D14

+

5

+12V

K2

38

+

3

MON-NC

MON-NO

MON-COM

1

JP3

2

F1-NC

F1-NO

F1-COM

1

JP4

2

F2-NC

F2-NO

F2-COM

1

JP5

2

4

6

NC

1

10

5

D15

K3

83

6

NC

1

10

+

5

D16

K4

38

+

6

NC

1

10

5

+12V

+12V

VDD

D13
D14
D15

CS3

D[0:23]

7

D5

8

D6

9

D7

10

RCLK

11

SIN

12

NC2

13

SOUT

14

CS0

15

CS1

16

CS2

17

BAUDOUT

0.1UF

C69

D12

65432

D4

TL16C550C

XIN

OE2
O0
O1
O2
O3
O4
O5
O6
O7

D[0:23]

D[0:23]

U17

10K

D8

D9

D10

D11

D12

D13

D14

D15

2

D16

D17

D18

D19

D20

D21

D22

D23

FL0

0.1UF

C76

OE1

Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7

74LCX541

R95

10K

PIN1OUT

3

2N3904

Q33

FL1

1
2
3
4
5
6
7
8
9

R151

10K

0.1UF

1

OE

2

D0

3

D1

4

D2

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND

74LCX574

1

OE

2

D0

3

D1

4

D2

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND

74LCX574

0.1UF

C66

U16

1

OE1

2

Y0

3

Y1

4

Y2

5

Y3

6

Y4

7

Y5

8

Y6

9

Y7

74LCX541

R96

10K

C85

U11

0.1UF

C94

U12

VCC

CLK

OE2

O0
O1
O2
O3
O4
O5
O6
O7

R89

Y0

Y1

Y2

Y3

Y4

Y5

Y6

Y7

VCC

CLK

VDD

10K

VDD

20

19

18

17

16

15

14

13

12

11

W-CS1

VDD

20

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

W-CS1

19
18
17
16
15
14
13
12
11

SENSE

R90

FL0B

FL1B

10K

D17

R93

R118

10K

10K

10K

R103

R132

10K

R119

10K

R108

10K

R121

10K

R92

R133

10K

R122

10K

10K

1

0.1UF

1

D7

D6

1

ICBUTTS

VDD

R91

2

1

1

1

1

1

C71

HPTT

+12V

R117

1K

3

2N3904

Q23

R114

3

2N3904

Q21

2

R109

3

2N3904

Q18

2

+12V

R102

31K

2N3904

Q17

2

+12V

R131

1K

3

2N3904

Q30

2

2

3

2

R120

31K

2N3904

Q24

2

+5V

0.1UF

TXD
RTS

RXD
CTS

D18

D19

D20

+12V

1K

+12V

1K

R128

3

2N3904

Q28

+12V

R123

1K

2N3904

Q25

+12V

C68

DIG2

DIG3

DIG4

R115

10K

R112

10K

R110

10K

10K

R129

+12V

1K

2
1
3

V+
C1+
C1-

10K

10K

0.1UF

C72

15

GND

U20

T1IN T1OUT
T2IN T2OUT

12

R1OUT

9

R2OUT

LT1181A

R140

R126

10K

R124

10K

R142

16

VCC

26

DIG5

+5V

J2

1

1

1

PTT-NC

PTT-NO

1

1

1

1

1

1

1

V-

C2+

C2-

R1IN
R2IN

3

2

15

2

3

15

16

PTT-COM

MON-NC

MON-NO

MON-COM

+12V

R116

1K

3

2N3904

Q22

2

R113

3

2N3904

Q20

2

R111

3

2N3904

Q19

2

R141

3

2N3904

Q31

2

R130

3

2N3904

Q29

2

3

2

3

2

R143

3

2N3904

Q32

2

6
4
5

1411
710

13
8

4

17

16

4

17

F1-NC

F1-NO

+12V

1K

+12V

1K

+12V

1K

+12V

1K

+12V

R127

1K

2N3904

Q27

+12V

R125

1K

2N3904

Q26

+12V

1K

C70

0.1UF

5

18

5

6

18

F1-COM

F2-NC

F2-NO

7

6

8

21

20

19

8

7

19

20

21

F2-COM

POWERIN

DIG0

DIG1

C67

0.1UF

C73 220PF

220PFC65

9

9

DIG2

22

22

DIG3

10

10

DIG4

23

23

DIG5

112612

24

24

11

CTCSS

RX-RAD+

FB8

FB7

131425

251413

12

TX-RAD+

RX-RAD-

TX-RAD-

27

27

RTDB25

FB6

FB5

J5

GROUND

PTTCOM

FB19

PTTNO
2

1

1

2

RAD-RX

RAD-TX

435

534

POWER
6

6

POWERIN

J17

J11

1

A

2

B

3

LINERX

181

16

17
G1

A1

F1

a1

f1

15
B1

b1

13

14

GND2F2GND1

f2

12

1

A

2

B

3

LINETX

U2

11

U5

7

NE5532

13

12

C17

220PF

0.1UF

C95

2

31

R68

100K

+10V

B2

10

a2

b2

14

R156

21

10K

R97

100K

R154

0

R155
33K

21

6

-

5

+

10K

R147

21

VR2.5

D2

g1

e1 c1

d1 d2

C1

D1

E1

2

3

J7

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

RTDB9

E2

DP1

4

5

10

11

g2

e2 c2

G2

D2

7

C2A2DP2

6

C47

-

3

+

C12

220PF

2

1

NE5532

220PFR57

R58

100K

R98

U5

0.1UF

U72

NE5532

21

C60

RADIOTX

100K

9118

VR6

RADIORX

SHEET

REV.

VR6

21

21

R150

10K

1

100K

31

2

-

3

+

VR2.5

10K

10K

R106

21

10K

R137

220PF

100K

-

3

+

21

R159

21

C80

R100

U82

NE5532

10K

R61

150

10K

R136

REVISION

STATUS

1

R148

SHEET

R107

301

R101

33K

VR6

21

4

5

T2

J14, J15, J22, J23 A=Bypass, B=Transformer

R35

15

J26

1

A

2

B

3

R59

33K

VR6

J24, J25 A=Bypass, B=Transformer

J24

1

A

2

B

3

21

A SBC 01/15/01

C79

220PF

R104

33K

U8

6

-

+

7

NE5532

5

RX Impedance-Line 1
600 Ohm: J19=A
10K Ohm: J19=B

10K:10K

3

2

16

J14

C46

220PF

R60

33K

U7

6

-

+

C53

NE5532

10K:10K

3

2

16

T1

7

5

1UF

4

5

REVISIONS

DESCRIPTIONREV.LOC.

RELEASED FOR PILOT BUILD

REFER TO SHEET 1 FOR ECO HISTORY.

TX Impedance
600 Ohm: J18=A J17=A
1200 Ohm:J18=B J17=A
1800 Ohm: J18=A J17=B
2400 Ohm: J18=B J17=B

4

5

61

J19

A

B

1

2

3

604

R134

0.1UF

0.1UF

600:600

T4

820UH

C90

820UH

C86

3

2

L7

L8

R105

0.01UF

0.01UF

0

C91

C87

0.001UF

0.001UF

C89

0.1UF

C93

0.1UF

FB12

FB11

820UH

C81

820UH

C78

L5

L6

120PF

120PF

C92

C88

J15

C28

1

A

2

B

3

J22

1

A

2

B

3

21

1UF

600:600

4

5

61

3

2

T3

1

A

2

B

3

J23

1

A

2

B

3

J25

1

A

2

B

3

J13

1

604

A

B

2

3

R64

R5

1/2W

10

J27

3

2

1

A

2

B

3

RX Impedance
8 Ohm: J12=A, J13=B
600 Ohm: J12=B,J13=A
10K Ohm: J12,J13=B

1

A

B

J12

CHK TITLE

APPDR

DEE SBC

DATE

01/15/2001

0.01UF

0.01UF

0.001UF

C82

C77

C51

0.001UF

0.001UF

J21

1

A

2

B

3

J20

1

A

2

B

3

FB2

C84

C74

ECO NO. DRFT CHKR APP DATE

FB10

120PF

C83

FB9

120PF

C75

F8

1

2

E3

E4

FB31

21

1

2

TX-RAD+

TX-RAD-

RX-RAD+

RX-RAD-

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

FB30

120PF

C50

0.001UF

0.001UF

J20,J21=A 2W
J20,J21=B 4W

E1

E2

PIN1OUT

FB1

C42

FB4

0.001UF

C59

FB3

C55

F6

F7

120PF

120PF

120PF

FB29

FB28

C43

C54

F9

21

21

JP8

C58

Radio

VEGA

DSP 223

1

TP7

1

TP8

Line

J10

RX+
TX+
TX­RX-

+12V

21

1

12

JP1

TP51

1

TP6

1

2

2

3

4

REFERENCE PCB : 750561

MCLK2

WR

RD

INTR

C64 220PF

220PFC63

CAD GENERATED DRAWING

CBA

MODEL

879457

NEXT

ASS'Y

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

SCHEMATIC

R

SIZE

DWG. NO.

770660

D

SHT.

D

OF

22

Tone Remote 25

9.4 PCB P/N 750561 Revision H

V

A

A

)

3

c

9

0

A

)

6

0

A

A

A

K

A

A

t

t

S

2

A

A

This drawing, written description or specification Is

01-62-03

R

R

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE:01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHK: APPD:

PART NO:

REV LEVEL:

879457

Q

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

REVISIONS

RE

RELEASED FOR PILOT BUILD
B U18 TO 760319 (ADSP-2185M
C DELETED 7602533PS AND ADDED TO LINCOLN BILL DSP22
D R95 NOT TO BE INSTALLED
E CHANGE J7 FROM 59926016 TO 64014

F ITEM 17 TELEXPN 7602702 CHAGED TO TELEXPN 5868000

G

DDED C45,C48,C49, FB20, FB21-FB31 (PCB TO REV D

H ITEM 1 - DELETED C28, C32

ITEM 2 - ADDED C28

ITEM 10 - ADED C12,C17

ITEM 38 - DELETED R20 ADDED R63,R95,R9

ITEM 39 - ADDED R106,R136,R137,R147,R148,R15

ITEM 49 - DELETED R37,R63

ITEM 66 - ADDED U5

ITEM 74 - DELETED U24

DDED ITEM 85 - R20, R37
DDED ITEM 86 - SCHEMATIC REFERENCE

PRINTED CIRCUIT BOARD TO REV E.

J

DDED D18,D19,D20 TO ITEM 19. R95,R96 CHANGED TO 10
ND ADDED TO ITEM 39. R151 ADDED TO ITEM 39

R63 TO 267K. C37 TO 1UF AND ADDED TO ITEM 2.

DDED C32,C41,C52 TO ITEM 2. ITEM 1 TO QTY OF 49

ITEM 38 TO QTY OF 11. PCB TO REV F.

DESCRIPTION ECO NO DATE

01-93-01 01/17/01
02-47-01 02/20/01
03-39-01 03/14/01
04-01-01 04/02/01
04-47-01 04/12/01
04-83-01 04/18/01
09-23-01 09/11/01
11-93-01 11/27/01

02-60-02 02/12/02

PPD
SBC
SBC
SBC

sb
SBC
SBC
SBC

ON NEXT REV CHANGE THE FOLLOWING
item 3 use 102881150
Item 8 use 102881138

K R138 FROM 10K TO 1K. ITEM 3 TO 102881150T, ITEM 8 TO 102881138T

L ITEM 78 - DELETE 7602673PS - ADD 760519-3P

M REVERSE CHANGE 04-20-0

ITEM 41 CHANGED TO NEW PART # 724097

N

ITEM2 TO QTY OF 10, ITEM 5 TO QTY OF 0, ITEM 10 TO QTY OF 13

P

03-50-02 03/19/02
04-20-02 04/10/02
05-12-02 05/03/02
11-56-02 11/25/02
11-37-02 11/25/02

ITEM 25 CHANGED PART # TO 710109, ITEM 37 QTY TO 34

ITEM 39 QTY TO 79

ITEM 54 TO QTY OF 28, ITEM 68 CHG PART # TO 760250T

DDED ITEM 87
ITEM 38 CHANGED QTY TO 12
ITEM 49 CHANGED QTY TO 5

Q

DDED J17 TO ITEM 34 AND ITEM 80 01-63-031/21/2003

LN,BE PAGE 1 OF 5

,

,

4

This drawing, written description or specification Is

R

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

Q

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

1 49 CAPACITOR 0.1UF 0805 102881186T C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,

C13,C14,C15,C16,C18,C23,C25,
C35,C44,C60,C61,C62,C66,
C67,C68,C69,C70,C71,C72,C76,C78,C81,
C85,C86,C90,C94,C95,C107,C108,C109,
C112,C113,C114,C115,C116,C117

C45,C48
2 10 CAPACITOR 1UF 0805 102881875T C19,C20,C26,C36, C28, C32, C37, C41, C52, C53
3 6 CAPACITOR 0.01UF 0805 102881150T C21,C24,C77,C82,C87,C91
4 2 CAPACITOR 0.47UF 1210 102881445T C22,C27
5 CAPACITOR 1800PF 0805
6 4 CAPACITOR 0.018UF 0805 102881126T C30,C31,C39,C40
7 1 CAPACITOR 0.047UF 0805 102881185T C34
8 8 CAPACITOR 0.001UF 0805 102881138T C42,C51,C55,C59,C74,C84,C89,C93
9 8 CAPACITOR 120PF 0805 102881100T C43,C50,C54,C58,C75,C83,C88,C92

C46,C47,C63,C64,C65,C73,C79,C80,C12,C17,C29

10 13 CAPACITOR 220PF 0805 102881103T

C33,C56
11
12 4 CAPACITOR 3.3UF TANT. B SIZE 102877021T C96,C97,C98,C99
13 5 CAPACITOR 10UF TANT. B SIZE 102877065T

C103,C10

,C106,C110,C111
14 1 LED GREEN RT ANGLE 1610628 D1
15 1 SOCKET 18 PIN RT ANGLE 640137 FOR D2
16 1 LED DUAL 7 SEGMENT GRN 760309 D2
17 1 LED RED LED 58680000 D3
18 1 LED RED RT ANGLE 1610630 D4
19 11 DIODE MMBD914 SOT-23 58711000T D5,D6,D7,D13,D14,D15,D16,D17,D18,D19,D20
20 1 LED YELLOW RT ANGLE 1610631 D8
21 1 DIODE MMBZ5V6ALT1 SOT-23 508046000T D9
22 3 DIODE SMD4004 16016481SMT D10,D11,D12
23 4 THYRISTOR TVB230-050 710106 E1,E2,E3,E4
24 1 FUSE 1.5A SMT FUSE 7101051 F1
25 4 POLYSWITCH TECCOR F1250T 710109T F6,F7,F8,F9
26 24 FERRITE FERRITE BEAD 723511T FB1,FB2,FB3,FB4,FB5,FB6,FB7,FB8,FB9,

FB10,FB11,FB12,FB19, FB21,FB22,FB23,FB24,

FB25,FB26,FB27,FB28,FB29,FB30,FB31
27 1 CONN DC PWR JACK 2.5MM 59697000 J1
28 1 CONN 25 PIN DB25 FEMALE 640136 J2
29 2 HEADER 20 PIN SMT 640126 J3,J4
30 1 HEADER 6 PIN RT ANG LEADED 2862056 J5
31 1 CONN RJ-4 PIN CONN LEADED 640123 J6
32 1 CONN 9 PIN DB9 FEMALE 640149 J7
33 2 CONN 8 PIN MODULAR JACK 2862013 J9,J10
34 16 HEADER 3 PIN SMT 640124 J11,J12,J13,J14,J15,J16,J19,J20,J21,

J22,J23,J24,J25,J26,J27,J17
35 4 RELAY SPDT SMT 730142 K1,K2,K3,K4
36 4 INDUCTOR 820UH 723510 L5,L6,L7,L8
37 34 TRANSISTOR 2N3904 SOT-23 54671200T Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,

Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20,Q21,

Q22,Q23,Q24,Q25,Q26,Q27,Q28,Q29,Q30,

Page 2 of 5

LN,BE

This drawing, written description or specification Is

R

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

Q

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

Q31,Q32,Q33,Q34
38 12 RESISTOR 0 OHM 0805 102506000T R1,R2,R3,R105,R139,FB13,FB14,FB15,FB16,FB17

,FB18,R154
39 79 RESISTOR 10K 0805 102515300T R4,R6,R8,R9,R10,R11,R13,R14,R15,R16,R17,R18

R21,R22,R23,R33,R34,R41,R42,R43,R48,R49,R50

R51,R53,R54,R55,R56,R65,R67,R69,R72,R75,

R76,R77,R79,R81,R84,R87,R88,R89,R90

R91,R92,R93,R94,R99,R103,R108,R110,R112,

R115,R118,R119,R121,R122,R124,R126

R129,R132,R133,R135,R140,R142,

R106,R136,R137,R147,R148,R150,R95,R96,R151

R152,R153,R156,R157,R159,R160
40 1 RESISTOR 10 OHMS 2010 102405100T R5
41 5 RES VAR 100K LINEAR H.ADJUST 724097 R7,R12,R68,R98,R149
42 1 RESISTOR 30K 0805 102515346T R24
43 7 RESISTOR 47 OHMS 0805 102515065T R25,R38,R62,R70,R144,R145,R146
44 4 RESISTOR 20K 0805 102515329T R26,R36,R39,R52
45 3 RESISTOR 150 OHMS 0805 102515117T R27,R32,R61
46 4 RESISTOR 562 OHMS 0805 102515172T R28,R31,R44,R47
47 5 RESISTOR 267K 0805 102515441T R29,R30,R45,R46,R63
48 1 RESISTOR 15 OHMS 0805 102515017T R35
49 5 RESISTOR 33K 0805 102515350T R59,R60,R101,R104,R155
50 1 RESISTOR 332 OHMS 0805 102515150T R40
51 4 RESISTOR 100K 0805 102515400T R57,R58,R97,R100
52 2 RESISTOR 604 OHMS 0805 102515175T R64,R134
53 1 RESISTOR 681 OHMS 0805 102515180T R66
54 28 RESISTOR 1K 0805 102515200 R19,R71,R73,R74,R78,R80,R82,R83,R85,R86,

R102,R109,R111,R113,R114,R116,R117,

R120,R123,R125,R127,R128,R130,R131,

R141,R143, R138, R162
55
56 1 RESISTOR 301 OHMS 0805 102515146T R107
57 1 SWITCH PUSH BUTTON SPST 57502000 SW1
58 2 TRANSFMER 10K-10K THRU-HOLE 3180246 T1,T2
59 2 TRANSFMER 600-600 THRU-HOLE 3180259 T3,T4
60 8 TEST JACK ORANGE 2861965 TP2,TP3,TP5,TP6,TP7,TP8,TP12,TP13
61 1 IC TL16C550CFN 760262 U1
62 1 IC 4053 SO16 53266123 U2
63 2 IC CS4335 SO8 760263 U3,U4
64 1 SOCKET PLCC 32 PIN PLCC SOCKET 539030032T U6 SOCKET
65
66 3 IC NE5532 SO8 760268 U7,U8 ,U5
67 4 IC 74LCX574 SO20 760257 U9,U10,U11,U12
68 1 IC LM317M 760250T U13
69 2 IC 74LCX541 SO20 760256 U16,U17
70 1 IC ADSP-2186M TQFP100 760319 U18
71 1 IC AT24C16N SO8 511336000T U19
72 1 IC LT1181ACSW 760261 U20

Page 3 of 5

LN,BE

This drawing, written description or specification Is

D

R

a proprietary product of TELEX, Lincoln, NE, and
shall not be released, disclosed, nor duplicated
without the written permission of TELEX.

APPROVALS: DR BY: SBC

DATE: 01/17/2001

Telex Communications INC.

Lincoln, Nebraska USA

PROD:CHKD BY: APPD BY:

PART NO:

REV LEVEL:

879457

Q

TITLE:

PCB ASSY, DSP223 MAIN BOARD - BE

TYPE DESCRIPTION PART NO. DESIGNATOR

ITEM

QTY

NEW

73 1 IC UA7805CKTE SMT 760260T U21
74 2 IC TL084 SO14 4300047 U22,U23
75 1 IC CS5330A SO8WB 760264 U25
76 1 IC TPS70158 760306 U26
77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 SOCKET
78 1 IC EPM7032AE PLCC44 760267-3PS U27 (PROGRAMMED)
79 1 32.768MHZ 780186 Y1
80 16 JUMPER JUMPER 2515001001 FOR J11,J12,J13,J14,J15,J16,J19,J20,J21,

J22,J23,J24,J25,J26,J27,J17
81 1 PCB PRINTED CIRCUIT BOAR

750561
82 A/R SOLDER PASTE BE738
83 1 CAP 1000UF ELECT H SIZE 51821526 C49
84 1 FERRITE COMMON MODE 724039 FB20
85 2 RES 8.06K 0805 102515287 R20, R37
86 0 REFERENCE SCHEMATIC 770660
87 1 RES 6.98K 0805 102515281T R161

Page 4 of 5

LN,BE

R

A B C D

SHEET

770660

This drawing, written description or specification

is a proprietary product of Telex, Lincoln, NE

and shall not be released, disclosed, nor duplicated

without the written permission of TELEX.

NOTES:

TP10

1

REFERENCE PCB NUMBER :

750561

TP12

TP9

1

FB13

FB14

1

FB15

FB16

TP11

1

X5

MTHOLE6

X6

MTHOLE6

X7

MTHOLE6

X8

MTHOLE6

FB17

FB18

F3 F4

FIDUCIAL FIDUCIAL

F2

FIDUCIAL

F5

FIDUCIAL

X1

MTH189

X2

MTH189

C109

0.1UF

+12V

+5V

U21

UA7805CKTE

1

IN

1

1

10UF

C104

+

21

0.1UF
C16

2

GND

OUT

3

0.1UF
C13

0.1UF

C108

1

NC1 NC3

2

VIN1-1

3

VIN1-2

4

MR1

5

MR2

6

EN

7

SEQ

8

GND

9

VIN2-1

10

VIN2-2

TPS70158

R139

0

U26

VOUT1-1

VOUT1-2

VSENSE1

PG1

RESET

VSENSE2

VOUT2-1

VOUT2-2

NC2

VDD

21

+

R135

+

C110

21

10UF

10K

+2.5V

10UF

R138

1K

C111

20

19

18

17

16

15

14

13

12

11

REV.

SHEET

REVISION

STATUS

REVISIONS

DESCRIPTIONREV.LOC.

ECO NO. DRFT CHKR APP DATE

A RELEASED FOR PILOT BUILD SBC 01/15/01

VR6 TO TRACE FROM PLANE AND ADDED FERRITES

C 11-93-01 SBC 11/27/01

U24 TL084 TO U5 NE5532 AND OTHERS

ADDED MISSING TRACE FROM J15 TO C51. FIXED POTS AND IMPROVED INPUT OUTPUT
CAPABILITIES.

E

R138 FROM 10K TO 1K

F

INCREASED LINE SENSITIVITY AND CHANGE 10V REG TO LM317

09-23-01 SBC 09/11/01B

02-60-02 SBCD

03-50-02 04/03/02

SBC

02/12/02

11-37-02 11/19/02

1

VDD

Mode Select R's

R14

VDD

RESET

C7

2

3

0.1UF

10K

1

D9

R8

A[0:13]

A3

100

A0

A1

A2

97

98

99

96

A0

10K

R17

VDD

10K

C4

R13

10K

1

NC

2

GND

37-5MHZ

R9

10K

Y1

C11

0.1UF

R10

10K

EECLK

+2.5V

R11

VDD

4

VDD

3

OUT

0.1UF

10K

R15

10K

A4
A5

A6
A7
A8
A9
A10
A11
A12
A13

A4/IAD3

2

A5/IAD4

3

GND1

4

A6/IAD5

5

A7/IAD6

6

A8/IAD7

7

A9/IAD8

8

A10/IAD9

9

A11/IAD10

10

A12/IAD11

11

A13/IAD12

12

GND2

13

CLKIN

14

XTAL

15

VDDEXT1

16

CLKOUT

17

GND3

18

VDDINT1

19

WR

20

RD

21

BMS

22

DMS

23

PMS

24

IOMS

25

CMS

A2/AD1

A3/AD2

IRQE+PF4

IRQL0+PF5

26

272928

A1/AD0

GND4

IRQL1+PF6

C6

0.1UF

VDD

C1

0.1UF

U19

18
2

NC2

3

NC3

4

GND

SO8NB

VCC1NC1

TEST

CLK

DATA

7
6
5

EECLK

R6

EED0

10K

AT24C16

VDD

J4

SENSE

3

5

7

9

IOMS

R-CS1

RD

WR

2

+10V

11

13

15

17

19

21

4

6

8

10

12

14

16

18

20

A[0:13]

D8

D[0:23]

D9

D10

D11

D12

D13

D14

D15

A0

A1

A2

A3

A4

A5

TP4

J3

12

3

5

7

9

11

13

15

17

19

4

6

8

10

12

14

16

18

20

R1

FL0B

POWERIN

Leave R1 for 3.3V Parts (L)

J9

1

1

2

2

3

3

OUT1

4

4

OUT2

5

5

INP1

6

6

7

7

8

8

0

0

0

R2

R3

VDD

Digital

Port

21

D12

D10

12

21

F1

3A

1

R4

FL1B

10K

Remove for 2.5 V Internal Parts (M)

21

D11

1000UF

2

FB20

+

21

C49

10UF

+

21

A[0:13]

C103

D5

R51

2

3

R40

332

10K

-

+

10K

U23

1

TL084

SIDETONE

R160

R26

20K

3900PF(OPT)

R50

C38

10K

U23

7

TL084

6

-

5

+

0.047U

R42

C34

10K

98

-

10

+

TL084

U23

VR6

VR6

R43

10K

R41

10K

C52

1UF

1UF

C37

0.018UF

0.018UF
C39C40

POWERIN

R47

562

R44

562

21

3.3UF

R49

10K

21

3.3UF

R48

10K

C98

C99

+

+

267K267K

R46

R45

J1

4

3

213

7
8

9
10
11 35
12
13
14
15
16
17

R38 47

8

AOUTL

5

AOUTR

CS4335

+5V

7

VA

AGND

6

C36

1UF

C35

0.1UF

U4

SDATA

DEM/SCLK

LRCK

MCLK

R-CS0

R-CS1

MCLK2

VDD

C10

0.1UF

1

2

3

4

R62

47

R145

47

47R146

R25

47

MCLK
LRCLK
SCLK

681

J6

HPTT

1

1

MIC

2

2

GND

3

3

PTT

4

4

EAR

S2S1

NC2NC1

14

SW1

23

R66

R52

20K

TP13

0.1UF

C107

VR2.5

ICBUTTS

220PF

C56

R149

2

CTCSS

FB21

21

0.1UF

C44

3

U23

14

TL084

100K

31

13

-

12

+

VR6

U2

LINERX

+10V

R53

3

4

5

9

10K

TP2

R32

150

C27

0.47UF

0.01UF
C24

+5V

C106

10UF

+

C25

+5V

21

267K

0.1UF

A3

A4

A5

R-CS0
R-CS1
MCLK2
GND10

GND12
GND13
LRCLK-OFF
VCCIO15
LRCLK
DIV4

W-CS0
W-CS1

CS3

R63

+12V

C15

LM317

3

IN

VDD

C9

0.1UF

6

5

A3

A4

A5

MAINPLD

W-CS1

W-CS0

181920

C2

0.1UF

U13

R161

3

4

GND2

VCCINT3

U27

CS3

GND20

22

21

R144

OUT

ADJ

1

6.98K

44

2

1

GND44

GND1

DAC2

GND22

VCCINT23

23

242526

VDD

47

R70

47

2

42

43

32MCLK

GND42

RESET

ADC1

DAC1

27

RESET

41

40

RESET

B0

B1

28

R162

SP0-RX

SP0-TX

VCCIO35MCLK

GND30

+10V

1K

+

C14

21

39

FS

38

IOMS

37
36

34

RD

33

WR

32

INTR

31

DIV4

30
29

INTR

1UF

INTR

VDD

92

93

94

95

BGH

GND10

PWDACK

PF0-MODEA

PF1-MODEB

ADSP-2189M

TQFP100

DR0

DT0

IRQ2+PF7

RFS0

TFS0

30

31

32

33

34

VDD

Emulation Header

1

GND

3

EBG

5

EBR

7

KEY

9

ELOUT

11

EE

13

RESET

90

91

PWD

VDDEXT4

U18

VDDEXT2

SCLK0

363735

C8

0.1UF

EED0

FL0

FL1

87

88

86

89

FL0

FL1

PF3

PF2-MODEC

DR1

DT1

RFS1

TFS1

383941

40

J8

85

FL2

GND5

D22

D23

83

84

D23

SCLK1

42

ERESET

TP1

D20

D21

81

82

D20

D21

D22

EMS

ERESET

RESET

444543

BG

BR

EINT

ELIN

ECLK

EMS

1

D19

79

80

D19

GND9

ECLKEEELIN

474850

46

2

4

6

8

10

12

14

R18
10K

D17

D18

77

78

D18

ELOUT

49

D16

76

D17

21

D16

VDDEXT3

D7/IWR

D6/IRD

D5/IAL

VDDINT2

D3/IACK
D2/IAD15
D1/IAD14
D0/IAD13

EINT

1

D[0:23]

D15
D14
D13
D12

GND8

D11
D10

D9

GND7

D8

D4/IS

GND6

BG

EBG

BR

EBR

Q1

D3

3

2N3904

2

751
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51

D15
D14
D13
D12

D11
D10
D9

D8
D7
D6
D5
D4

D3
D2
D1
D0

R19

21

VDD

1K

21

VDD

+10V

C18

R16

10K

A[0:13]

0.1UF

D[0:23]

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
D16
D17
D18
D19
D20

U6

12

A0

11

A1

10

A2

9

A3

8

A4

7

A5

6

A6

5

A7

27

A8

26

A9

23

A10

25

A11

4

A12

28

A13

29

A14

3

A15

2

A16

30

A17

1

A18

31

WR

24

RD

22

CS

AT29LV020

D0
D1
D2
D3
D4
D5
D6
D7

13

D8

14

D9

15

D10

17

D11

18

D12

19

D13

20

D14

21

D15

VDD

C3

+2.5V

C5

D[0:23]

0.1UF

0.1UF

2

3

HNDLINE

R54

10K

1

RADIORX

+10V

3

2N3904

Q2

2

TP3

C22

U2

1

15

2

10

220PF

R27

150

0.47UF

0.01UF
C21

8

AINL

5

AINR

CS5330A

7

VA

AGND

6

0.1UF

U25

SDATA

SCLK

LRCK

MCLK

1

2

3

4

ADC1

+10V

C29

R20

1

14

VR6

VR2.5

0.1UF

21

C45

0.1UF

21

C48

MODEL

879457

NEXT

ASS'Y

DEE SBC

DATE

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

CHK TITLE

APPDR

01/15/2001

R

SIZE

D

VEGA

DSP 223

SCHEMATIC

DWG. NO.

770660

SHT.

1

OF

4

2

8.06K

R36

20K

R37

R39

20K

21

+5V

7

VA

AGND

6

C26

1UF

C23

0.1UF

U3

SDATA

DEM/SCLK

LRCK

MCLK

1

2

3

4

DAC1

1

1

JP7

2

2

C41

0.018UF

1UF

R31

562

10K

21

1

1

JP6

2

2

C32

0.018UF

1UF

C30C31

R28

562

10K

C96

3.3UF

21

+

267K

R34

C97

3.3UF

21

+

267K

R33

R30

R29

8

AOUTL

5

AOUTR

CS4335

BYPASS CAPS FOR:

U7U8U22

U2

0.1UF

C112

0.1UF

C113

0.1UF

C114

U23

0.1UF

C115

U24

0.1UF

C116

+10V

C19

0.1UF

C117

1UF

R21R22

C20

10K

10K

1UF

+5V

R23

R24

10K

30K

TL084

+

3

-

2

U22

TL084

+

12

-

13

U22

CAD GENERATED DRAWING

R56

10K

C33

2

U22

7

TL084

R12

100K

31

6

-

5

+

RADLINE

R55

10K

4

3

1

2N3904

Q3

2

RADIOTX

LINETX

220PF

R152

10K

VR6

8.06K

R153

10K

VR6

REFERENCE PCB : 750561

R7

100K

2

TL084

U22

8

31

9

-

10

+

CBA

D

A B C D

VDD

770660

This drawing, written description or specification

0.1UF

C62

U10

74LCX574

0.1UF

C61

U9

74LCX574

A[0:13]

R-CS0

D8
D9
D10
D11
D12
D13
D14

D[0:23]

D15

1

OE

D0

D1

D2

D3

D4

D5

D6

D7

GND

OE

D0

D1

D2

D3

D4

D5

D6

D7

GND

3

2N3904

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

D8

D9

D10

D11

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D22

D23

R94

10K

Q34

2

Serial Interface

19
18
17
16
15
14
13
12
11

D[0:23]

D[0:23]

1

is a proprietary product of Telex, Lincoln, NE

and shall not be released, disclosed, nor duplicated

without the written permission of TELEX.

NOTES:

REFERENCE PCB NUMBER :

3

2

FB23

1

FB24

3

2

1

D11

D10

D3

PLCC44

U1

XOUT

20

191821

1

1

D9

D2

WR1

D1

WR2

FB22

1

21 DIG2

DIG4

21

HNDLINE

RADLINE

1

1

VDD

D8

44

1

D0

NC1

NC3

VSS

23

22

24

21 DIG0

R87

R88

10K

R77

10K

R75

10K

R76

10K

R65

10K

R99

10K

43

RI

VCC

DCD

DDIS

RD2

RD1

25

26

10K

414240

CTS

DSR

ADS

TXRDY

27

28

MR

OUT1

DTR

RTS

OUT2

NC4
INTRPT
RXRDY

A0
A1
A2

R157

10K

39
38
37
36
35
34
33
32
31
30
29

VDD

W-CS0

VDD

W-CS0

RESET

A0
A1
A2

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

20

VCC

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CLK

1

DIG1

R86

1K

2N3904

Q15

R83

1K

3

2N3904

Q13

2

R78

1K

3

2N3904

Q10

2

+12V

R74

1K

2N3904

Q9

+12V

R71

1K

3

2N3904

1

+5V +12V

R85

1K

3

2

1

A

B

J16

R82

1K

3

2N3904

Q14

3

2N3904

Q12

R80

1K

3

2N3904

Q11

+12V

D1

21

D4

21

D8

21

2

R73

1K

2N3904

Q8

3

FB25

21

R84

1

2

2

FB27

2

2

10K

FB26

21 DIG3

R81

1

10K

21

DIG5

R79

1

10K

R72

1

10K

Q7

2N3904

Q6

3

R69

1

2

10K

2

3

2N3904

Q4

2

3

2N3904

Q16

2

D13

2N3904

Q5

+12V

3

R67

1

2

10K

K1

JP2

83

6

NC

PTT-NC

PTT-NO

PTT-COM

1

2

1

10

D14

+

5

+12V

K2

38

+

3

MON-NC

MON-NO

MON-COM

1

JP3

2

F1-NC

F1-NO

F1-COM

1

JP4

2

F2-NC

F2-NO

F2-COM

1

JP5

2

4

6

NC

1

10

5

D15

K3

83

6

NC

1

10

+

5

D16

K4

38

+

6

NC

1

10

5

+12V

+12V

VDD

D13
D14
D15

CS3

D[0:23]

7

D5

8

D6

9

D7

10

RCLK

11

SIN

12

NC2

13

SOUT

14

CS0

15

CS1

16

CS2

17

BAUDOUT

0.1UF

C69

D12

65432

D4

TL16C550C

XIN

OE2
O0
O1
O2
O3
O4
O5
O6
O7

D[0:23]

D[0:23]

U17

10K

D8

D9

D10

D11

D12

D13

D14

D15

2

D16

D17

D18

D19

D20

D21

D22

D23

FL0

0.1UF

C76

OE1

Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7

74LCX541

R95

10K

PIN1OUT

3

2N3904

Q33

FL1

1
2
3
4
5
6
7
8
9

R151

10K

0.1UF

1

OE

2

D0

3

D1

4

D2

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND

74LCX574

1

OE

2

D0

3

D1

4

D2

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND

74LCX574

0.1UF

C66

U16

1

OE1

2

Y0

3

Y1

4

Y2

5

Y3

6

Y4

7

Y5

8

Y6

9

Y7

74LCX541

R96

10K

C85

U11

0.1UF

C94

U12

VCC

CLK

OE2

O0
O1
O2
O3
O4
O5
O6
O7

R89

Y0

Y1

Y2

Y3

Y4

Y5

Y6

Y7

VCC

CLK

VDD

10K

VDD

20

19

18

17

16

15

14

13

12

11

W-CS1

VDD

20

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

W-CS1

19
18
17
16
15
14
13
12
11

SENSE

R90

FL0B

FL1B

10K

D17

R93

R118

10K

10K

10K

R103

R132

10K

R119

10K

R108

10K

R121

10K

R92

R133

10K

R122

10K

10K

1

0.1UF

1

D7

D6

1

ICBUTTS

VDD

R91

2

1

1

1

1

1

C71

HPTT

+12V

R117

1K

3

2N3904

Q23

R114

3

2N3904

Q21

2

R109

3

2N3904

Q18

2

+12V

R102

31K

2N3904

Q17

2

+12V

R131

1K

3

2N3904

Q30

2

2

3

2

R120

31K

2N3904

Q24

2

+5V

0.1UF

TXD
RTS

RXD
CTS

D18

D19

D20

+12V

1K

+12V

1K

R128

3

2N3904

Q28

+12V

R123

1K

2N3904

Q25

+12V

C68

DIG2

DIG3

DIG4

R115

10K

R112

10K

R110

10K

10K

R129

+12V

1K

2
1
3

V+
C1+
C1-

10K

10K

0.1UF

C72

15

GND

U20

T1IN T1OUT
T2IN T2OUT

12

R1OUT

9

R2OUT

LT1181A

R140

R126

10K

R124

10K

R142

16

VCC

26

DIG5

+5V

J2

1

1

1

PTT-NC

PTT-NO

1

1

1

1

1

1

1

V-

C2+

C2-

R1IN
R2IN

3

2

15

2

3

15

16

PTT-COM

MON-NC

MON-NO

MON-COM

+12V

R116

1K

3

2N3904

Q22

2

R113

3

2N3904

Q20

2

R111

3

2N3904

Q19

2

R141

3

2N3904

Q31

2

R130

3

2N3904

Q29

2

3

2

3

2

R143

3

2N3904

Q32

2

6
4
5

1411
710

13
8

4

17

16

4

17

F1-NC

F1-NO

+12V

1K

+12V

1K

+12V

1K

+12V

1K

+12V

R127

1K

2N3904

Q27

+12V

R125

1K

2N3904

Q26

+12V

1K

C70

0.1UF

5

18

5

6

18

F1-COM

F2-NC

F2-NO

7

6

8

21

20

19

8

7

19

20

21

F2-COM

POWERIN

DIG0

DIG1

C67

0.1UF

C73 220PF

220PFC65

9

9

DIG2

22

22

DIG3

10

10

DIG4

23

23

DIG5

112612

24

24

11

CTCSS

RX-RAD+

FB8

FB7

131425

251413

12

TX-RAD+

RX-RAD-

TX-RAD-

27

27

RTDB25

FB6

FB5

J5

GROUND

PTTCOM

FB19

PTTNO
2

1

1

2

RAD-RX

RAD-TX

435

534

POWER
6

6

POWERIN

J17

J11

1

A

2

B

3

LINERX

181

16

17
G1

A1

F1

a1

f1

15
B1

b1

13

14

GND2F2GND1

f2

12

1

A

2

B

3

LINETX

U2

11

U5

7

NE5532

13

12

C17

220PF

0.1UF

C95

2

31

R68

100K

+10V

B2

10

a2

b2

14

R156

21

10K

R97

100K

R154

0

R155
33K

21

6

-

5

+

10K

R147

21

VR2.5

D2

g1

e1 c1

d1 d2

C1

D1

E1

2

3

J7

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

RTDB9

E2

DP1

4

5

10

11

g2

e2 c2

G2

D2

7

C2A2DP2

6

C47

-

3

+

C12

220PF

2

1

NE5532

220PFR57

R58

100K

R98

U5

0.1UF

U72

NE5532

21

C60

RADIOTX

100K

9118

VR6

RADIORX

SHEET

REV.

VR6

21

21

R150

10K

1

100K

31

2

-

3

+

VR2.5

10K

10K

R106

21

10K

R137

220PF

100K

-

3

+

21

R159

21

C80

R100

U82

NE5532

10K

R61

150

10K

R136

REVISION

STATUS

1

R148

SHEET

R107

301

R101

33K

VR6

21

4

5

T2

J14, J15, J22, J23 A=Bypass, B=Transformer

R35

15

J26

1

A

2

B

3

R59

33K

VR6

J24, J25 A=Bypass, B=Transformer

J24

1

A

2

B

3

21

A SBC 01/15/01

C79

220PF

R104

33K

U8

6

-

+

7

NE5532

5

RX Impedance-Line 1
600 Ohm: J19=A
10K Ohm: J19=B

10K:10K

3

2

16

J14

C46

220PF

R60

33K

U7

6

-

+

C53

NE5532

10K:10K

3

2

16

T1

7

5

1UF

4

5

REVISIONS

DESCRIPTIONREV.LOC.

RELEASED FOR PILOT BUILD

REFER TO SHEET 1 FOR ECO HISTORY.

TX Impedance
600 Ohm: J18=A J17=A
1200 Ohm:J18=B J17=A
1800 Ohm: J18=A J17=B
2400 Ohm: J18=B J17=B

4

5

61

J19

A

B

1

2

3

604

R134

0.1UF

0.1UF

600:600

T4

820UH

C90

820UH

C86

3

2

L7

L8

R105

0.01UF

0.01UF

0

C91

C87

0.001UF

0.001UF

C89

0.1UF

C93

0.1UF

FB12

FB11

820UH

C81

820UH

C78

L5

L6

120PF

120PF

C92

C88

J15

C28

1

A

2

B

3

J22

1

A

2

B

3

21

1UF

600:600

4

5

61

3

2

T3

1

A

2

B

3

J23

1

A

2

B

3

J25

1

A

2

B

3

J13

1

604

A

B

2

3

R64

R5

1/2W

10

J27

3

2

1

A

2

B

3

RX Impedance
8 Ohm: J12=A, J13=B
600 Ohm: J12=B,J13=A
10K Ohm: J12,J13=B

1

A

B

J12

CHK TITLE

APPDR

DEE SBC

DATE

01/15/2001

0.01UF

0.01UF

0.001UF

C82

C77

C51

0.001UF

0.001UF

J21

1

A

2

B

3

J20

1

A

2

B

3

FB2

C84

C74

ECO NO. DRFT CHKR APP DATE

FB10

120PF

C83

FB9

120PF

C75

F8

1

2

E3

E4

FB31

21

1

2

TX-RAD+

TX-RAD-

RX-RAD+

RX-RAD-

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

FB30

120PF

C50

0.001UF

0.001UF

J20,J21=A 2W
J20,J21=B 4W

E1

E2

PIN1OUT

FB1

C42

FB4

0.001UF

C59

FB3

C55

F6

F7

120PF

120PF

120PF

FB29

FB28

C43

C54

F9

21

21

JP8

C58

Radio

VEGA

DSP 223

1

TP7

1

TP8

Line

J10

RX+
TX+
TX­RX-

+12V

21

1

12

JP1

TP51

1

TP6

1

2

2

3

4

REFERENCE PCB : 750561

MCLK2

WR

RD

INTR

C64 220PF

220PFC63

CAD GENERATED DRAWING

CBA

MODEL

879457

NEXT

ASS'Y

TELEX COMMUNICATIONS, INC.

LINCOLN, NEBRASKA

SCHEMATIC

R

SIZE

DWG. NO.

770660

D

SHT.

D

OF

22

26 Vega DSP-223

10 Warranty, Service, Repair, and Comments

Important! Be sure the exact return address and a description of the problem or
work to be done are enclosed w

Warranty (Limited)

All Telex Communications, Inc. manufactured Vega Signaling products are guaranteed against
malfunction due to defects in materials and workmanship for three years, beginning at the date of original
purchase. If such a malfunction occurs, the product will be repaired or replaced (at our option) without
charge during the three-year period, if delivered to the Telex factory. Warranty does not extend to
damage due to improper repairs, finish or appearance items, or malfunction due to abuse or operation
under other than the specified conditions, nor does it extend to incidental or consequential damages.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation may not apply to you. This warranty gives the customer specific legal rights, and there may be
other rights which vary from state to state.

Factory Service Center

TELEX Communications, Inc.

Vega Signaling Products

8601 East Cornhusker Highway, Lincoln, Nebraska, 68507
Phone: [phone] Fax: [phone]
E-mail: [e-mail]

Web: www.vega-signaling.com

ith your equipment.

Claims

No liability will be accepted for damages directly or indirectly arising from the use of our materials or from
any other causes. Our liability shall be expressly limited to replacement or repair of defective materials.

Suggestions or Comments

We’d appreciate your input. Please send us your suggestions or comments concerning this manual, by
fax [phone]) or e-mail them to

: [e-mail]

Visit our web site at www.vega-signaling.com

Tone Remote 27

11 DSP-223 Specifications

Operating Temperature Range: 0 to 70°C for full

specifications

Power Requirements: +12 to +16 Vdc, semi-

regulated, 500ma.

Relay Contact Ratings: 1A at 125Vac

Radio Interface: ±45 Vdc withstand rating

Line to TX Output Gain: -10dB to +25dB, user

settable

Radio Output Level: 10mVp-p to 9Vp-p for

microphone level or -40 to +10dBm into 600Ω
load, adjustable

Radio Output Impedance: 600Ω for balanced

mode, 200Ω for single ended mode

Radio Input Level: 100mVrms to 16Vrms,

adjustable

Audio Distortion: 2% THD maximum

Frequency Response: ±1.5 dB, 300 to 3000 Hz,

except at 2175 Hz notch frequency

Line Output Level: -40 to +10dBm, adjustable

Line Input/Output Impedance: 600Ω nominal, or

10kΩ receive

Sensitivity: Ultimate sensitivity, -25dBm PTT tone

Frequency-Select Function Tone Decoder

Tuning Range: Not tunable by field personnel,

only by software change

MON timer: 10ms to 65seconds, adjustable

PTT Detect Frequencies: Programmable 2100,

2155, 2175, 2300, 2325, 2600, 2800 and
2970Hz

PTT Tone Detect Bandwidth: ± 20 Hz

Tone-Detect Stability: 100 ppm

Notch Frequency Bandwidth: 50 Hz at -3dB

points.

Notch Frequency Rejection: 45 dB minimum

Morse Code Transmitter: 20 wpm, 400-2000Hz

carrier selectable, 50 chars max, -40 to 0 dB or
range relative to max radio level output.

Voter Status: Programmable active Hi/Low, 0 to –

20dbm, 300 to 3000Hz

Radio Interface: ± 45 Vdc withstand rating

Non-Relay Outputs: Open collector, active low,

200mA maximum, 40V collector to emitter
voltage

Dimensions: 8 ½” Wide, 7 1/8” Deep, by 1 5/8”

High

±1Hz at –40dB.

Function-Tone Detection Bandwidth: ± 20 Hz

around center of frequency

DTMF Detection Bandwidth: ± 25 Hz around

center of frequency

Specifications are subject to change without notice

TELEX Communications, Inc.

Vega Signaling Products

8601 East Cornhusker Highway, Lincoln, Nebraska, 68507

Phone: [phone] Fax: [phone]

E-mail: [e-mail], Web: www.vega-signaling.com