Philips PCD3330-1P, PCD3330-1T Datasheet

INTEGRATED CIRCUITS

DATA SH EET

PCD3330-1

Multistandard repertory dialler/ringer with EEPROM

Product speciﬁcation Supersedes data of September 1992 File under Integrated circuits, IC03

1997 Jan 15

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

CONTENTS

1 FEATURES

1.1 Pulse/DTMF dialling

1.2 Number storage

1.3 Ringer

1.4 General 2 GENERAL DESCRIPTION 3 ORDERING INFORMATION 4 PINNING 5 FUNCTIONAL DESCRIPTION

5.1 Inputs/Outputs

5.1.1 COL1 to COL6, keyboard inputs

5.1.2 DMO, dial mode output

5.1.3 HOOK, on/off hook detection input

5.1.4 XTAL1 and XTAL2, oscillator input/output

5.1.5 RESET, reset input

5.1.6 CE/RF, chip enable and ringer-frequency detect input

5.1.7 ROW1 to ROW6, keyboard outputs

5.1.8 MUTE, mute output

5.1.9 RTO, ringer tone output

5.1.10 DP/FL, pulse dialling and register recall output

5.1.11 VDD and V

5.1.12 TONE, DTMF or ringer tone output

5.1.13 PD/DTMF, pulse/tone mode selection

5.1.14 RVOL1 and RVOL2/LSE, ringer volume outputs

5.1.15 EARTH, a/b line to earth connection

5.2 Keyboard

5.3 EEPROM organization and programming procedures

5.3.1 EEPROM organization

5.3.2 EEPROM programming procedures

5.3.2.1 Factory EEPROM programming procedure

5.3.2.2 EEPROM programming procedures via keyboard

5.4 Operation mode overview

5.5 Pulse/DTMF dialling function

5.5.1 Pulse/DTMF mode selection by pin

5.5.2 Pulse dialling (PD/DTMF = LOW)

5.5.3 Dual tone multi frequency (DTMF) dialling (PD/DTMF = HIGH)

5.5.4 DTMF dialling in pulse dialling mode (mixed mode dialling)

5.5.5 Flash or Earth function

5.5.6 Disconnect function

5.5.7 Mute function (M-key)

5.5.8 On-hook dialling control

5.6 Number storage, transmission and redial

5.6.1 Number storage and transmission

PCD3330-1

5.6.2 Last number redial (1 to 24 digits)

5.6.3 Access pause by Cursor method

5.6.4 Access pause by Atlanta procedure

5.6.5 10-number repertory dialling

5.6.5.1 Chain dialling

5.6.6 3-number repertory dialling

5.6.7 Access pause storage

5.6.8 Manual access pauses

5.6.9 Storing repertory numbers

5.7 Ringer function

5.7.1 Ringer output pin selection

5.7.2 Ringer input frequency measurement

5.7.3 Ringer melodies selection

5.7.4 Ringer volume change during conversation and ringer mode

5.7.5 Ringer repetition rate change during conversation and ringer mode

6 LIMITING VALUES 7 HANDLING 8 DC CHARACTERISTICS 9 APPLICATION INFORMATION 10 PACKAGE OUTLINES 11 SOLDERING

11.1 Introduction

11.2 DIP

11.2.1 Soldering by dipping or by wave

11.2.2 Repairing soldered joints

11.3 SO

11.3.1 Reflow soldering

11.3.2 Wave soldering

11.3.3 Repairing soldered joints

12 DEFINITIONS 13 LIFE SUPPORT APPLICATIONS

1997 Jan 15 2

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

1 FEATURES

1.1 Pulse/DTMF dialling

• Pulse, DTMF and ‘mixed mode’ dialling

• Mixed mode dialling: start with pulse dial, end with

DTMF dial (e.g. for control of DTMF user equipment via a pulse network)

• Number of digits per call is infinite (FIFO register)

• Flash or register recall

• Connect a/b to earth function

• Mute functions

• Disconnect function

• Supports 16 dial key: 0 to 9 and ∗, #, A, B, C and D

• Supports up to 6 × 6 keyboard and various function keys

including: – FLASH: calibrated line-break pulse – HOOK: toggle on-hook/off-hook or loudspeaker

on/off – MUTE: activate/deactivate mute output – TONE: change to DTMF dialling (mixed mode) – DISconnect: return to on-hook state for calibrated

time

• On-hook dialling control

• Country specifications which can be stored in EEPROM

are: – ∗ and # to be transmitted/not transmitted when

switching over to DTMF dialling mode – mark-to-space ratio (3:2or2:1) – 6 tone time selections (60/90, 70/70, 80/80, 100/100,

100/140 or 140/140 ms) – 4 flash time selections (100, 115, 270 or 600 ms) – mute output type selection (M1, – microphone mute generated via the LSE output – DTMF keys or Function keys selection

• On-chip voltage reference for stabilized supply and temperature independent tone output

• On-chip filtering for low output distortion (CEPT compatible).

M1, M2 or M2)

PCD3330-1

1.2 Number storage

• Redial by ‘cursor’ method (maximum 24 digits) stored in internal EEPROM

• Storage for 13 repertory dial numbers (16 digits each) or 10 repertory dial numbers (20 digits each) in internal EEPROM

• Access pause generation and termination: manually or by ‘Atlanta’ procedure

• Function keys for: LNR, Memory recall, Store, Access Pause and 1 key repertory

• Country specifications which can be stored in EEPROM are:

– access pause time selection (1.5/1.0, 2.5/1.5,

3.0/3.5 or 6.0/6.0 s) – 10 number repertory dialler selection (1 or 2 key) – two repertory number programming procedures

(General or Germany) – repertory length (16 or 20 digits) – generating a keytone during program actions.

1.3 Ringer

• Ringer input frequency detection

• Function key for: Program Ringer

• Three-tone ringer with 4 different ringer frequencies

• Ringer melody generation with four signal speeds and

four output volume steps, keypad controlled

• Country specifications which can be stored in EEPROM are:

– ringer input frequency detection selection – ringer output selection (via DTMF tone output or

special ringer tone output) – 4 possible ringer melodies – 4 possible ringer repetition rates – 4 possible ringer volumes.

1.4 General

• On-chip oscillator uses low-cost 3.58 MHz (TV colour burst) crystal or PXE resonator

• On-chip power-on reset (typically 2.0 V)

• Supply voltage range 1.8 to 6.0 V (2.5 to 6.0 V in

EEPROM erase/write and DTMF and ringer mode).

1997 Jan 15 3

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with

PCD3330-1

EEPROM

2 GENERAL DESCRIPTION

The PCD3330-1 is a mixed-mode multistandard repertory dialler/ringer IC fabricated in a low threshold voltage CMOS technology.

The (maximum 13) repertory numbers, redial and various country specifications are stored in EEPROM so that memory retention is guaranteed for 10 years without using a battery back-up.

National telecommunications specifications can be fulfilled by changing a few bytes in EEPROM which contain the different telephone timing and dialling procedures.

The two on-chip tone generators are used for Dual Tone Multi-Frequency (DTMF) dialling, and for generating a melody during ringing, which is activated when a correct incoming ringer frequency is detected.

3 ORDERING INFORMATION

TYPE

NUMBER

PCD3330-1P DIP28 plastic dual in-line package; 28 leads (600 mil) SOT117-1 PCD3330-1T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1

NAME DESCRIPTION VERSION

As an output transducer for the ringer, a loudspeaker (ringer out via tone output) or a PXE (ringer out via the special ringer output which generates square wave ringer tones with a peak-to-peak voltage of V used.

The operating supply voltage is 1.8 V (2.5 V in EEPROM erase/write and DTMF and ringer mode) to 6.0 V with a low current consumption in all operating modes: standby, conversation, dialling, programming and ringer.

PACKAGE

to VSS) can be

1997 Jan 15 4

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

4 PINNING

SYMBOL PIN DESCRIPTION

COL1 1 sense column keyboard

input/programming EEPROM

COL2 2 sense column keyboard

input/programming EEPROM

COL3 3 sense column keyboard

input/programming EEPROM

COL4 4 sense column keyboard

input/programming EEPROM COL5 5 sense column keyboard input COL6 6 sense column keyboard input DMO 7 dial mode output HOOK 8 cradle contact input XTAL1 9 crystal/PXE oscillator input XTAL2 10 crystal/PXE oscillator output RESET 11 reset input CE/RF 12 chip enable and zero crossing for

ringer input ROW1 13 scanning row keyboard output ROW2 14 scanning row keyboard output ROW3 15 scanning row keyboard output ROW4 16 scanning row keyboard output ROW5 17 scanning row keyboard output ROW6 18 scanning row keyboard output MUTE 19 mute output RTO 20 ringer melody output DP/FL 21 dial pulse/ﬂash inverted output V

TONE 23 DTMF tones or ringer melody

PD/DTMF 25 pulse/DTMF dial selection RVOL1 26 ringer volume output 1 RVOL2/LSE 27 ringer volume output 2

EARTH 28 earth output

22 negative supply

output

24 positive supply

/loudspeaker enable output

handbook, halfpage

COL1

COL2

COL3

COL4

COL5

COL6

DMO

PCD3330-1

HOOK

XTAL1

XTAL2

RESET

CE/RF

ROW1

ROW2

MGG571

Fig.1 Pin configuration.

PCD3330-1

EARTH

RVOL2/LSE

RVOL1

PD/DTMF

TONE V

DP/FL RTO

MUTE

ROW6

ROW5

ROW4

16 1514

ROW3

1997 Jan 15 5

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

5 FUNCTIONAL DESCRIPTION

5.1 Inputs/Outputs

5.1.1 COL1 The sense column inputs COL1 to COL6 and the scanning

row outputs ROW1 to ROW6 can be directly connected to several keyboard layouts, up to a maximum 6 × 6 single contact keyboard matrix.

Four of the sense columns are used to store the contents of the EEPROM in the factory (see Section 5.3).

5.1.2 DMO, This output is HIGH during the make and break times in

pulse dial mode. Its function is to lower the DC line voltage during these pulses.

This output is LOW during DTMF dialling, during the inter-digit-pause in pulse dial mode and during conversation mode.

5.1.3 HOOK,

TO COL6, KEYBOARD INPUTS

DIAL MODE OUTPUT

ON/OFF HOOK DETECTION INPUT

PCD3330-1

network). When the RESET input becomes HIGH it initializes the IC.

The RESET-pin should not be left open (not-connected) in any circumstances.

5.1.6 CE/RF,

DETECT INPUT

As chip enable input (active HIGH) it is used to initialize part of the system, to switch from standby to the ringer or conversation, programming or dialling mode and to detect line breaks.

As ringer-frequency input it measures the time between two LOW-to-HIGH transitions, thus measuring the ringer frequency.

5.1.7 ROW1 The scanning row outputs ROW1 to ROW6 and the sense

column inputs COL1 to COL6 can directly be connected to several keyboard layouts (max. a 6 × 6 single contact keyboard matrix).

CHIP ENABLE AND RINGER-FREQUENCY

TO ROW6, KEYBOARD OUTPUTS

If inputs CE and HOOK are both HIGH then the conversation, programming or dialling mode is selected. Switching the HOOK input LOW longer than the reset-delay-time results in switching to the standby mode.

If CE = HIGH and HOOK = LOW the PCD3330-1 is in the ringer mode.

5.1.4 XTAL1

AND XTAL2, OSCILLATOR INPUT/OUTPUT

Time base for the PCD3330-1 is a crystal-controlled on-chip oscillator which is completed by connecting a

3.579545 MHz crystal or ceramic resonator (PXE) between XTAL1 and XTAL2. The XTAL2 is the oscillator output and can be used as driver for another oscillator input. A low-cost quartz crystal from Philips (code number. 4322 143 04401) is available, specially for telephony applications. The oscillator starts when VDD reaches the operating voltage level and CE = HIGH.

5.1.5 RESET,

RESET INPUT

When the RESET pin is connected to VSS, a reset is generated by an internal power-on-reset circuit, which produces an internal reset pulse every time that the supply voltage VDD crosses the power-on-reset voltage level (typ. 2.0 V).

Depending on the application it can be necessary to generate a reset via an external circuit (e.g. an external RC

5.1.8 MUTE,

MUTE OUTPUT

The MUTE output is used during dialling. In the PCD3330-1 the MUTE output has four different selectable options:

• M1, normally LOW, but HIGH during inter-digit-pause and make/break in pulse dial mode, during tone-on and tone-off in DTMF mode, and during flash or earth

• M1, the inverted signal of M1

• M2, normally LOW, HIGH during make/break in pulse

dial mode, during tone-on in DTMF mode, and during flash or earth

• M2, the inverted signal of M2.

Each time the M-key on the keyboard is pressed the MUTE output goes to its inverted state.

5.1.9 RTO,

RINGER TONE OUTPUT

This is the special ringer output. When this output is selected the output of the internal tone generators is not connected to the TONE output but to this RTO output. The ringer output signal has a peak to peak square output voltage of VDD− VSS (this is used with a PXE transducer).

5.1.10

DP/FL, PULSE DIALLING AND REGISTER RECALL

OUTPUT

TheDP/FL output drives an external switching transistor in pulse dial mode.

1997 Jan 15 6

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

It pulses a calibrated FLASH or register recall pulse (if selected) when the keyboard input FLASH is pressed.

5.1.11 V VDD and VSS are the supply terminals.

5.1.12 TONE, DTMF In DTMF dialling mode the dual tones which are provided

at the output TONE are filtered by an on-chip switched capacitor filter, followed by an active RC low-pass filter. Therefore, the total harmonic distortion of the DTMF tones fulfils the CEPT recommendations. An on-chip reference voltage provides output tone levels independent of supply voltages. The impedance is 100 Ω typically.

In ringer mode this TONE output can be used for generating the ringer output tones. Whether this TONE output or the special RTO (ringer tone) output is used is selected via EEPROM.

5.1.13 PD/DTMF, To select the dialling mode, this input PD/DTMF must be

connected to VDD or VSS. PD/DTMF = HIGH (VDD) = DTMF mode.

PD/DTMF = LOW (VSS) = pulse mode. The PCD3330-1 accept the information also during

manual dialling. Switching the input to pin PD/DTMF changes the dialling mode after finishing the digit in progress.

AND V

OR RINGER TONE OUTPUT

PULSE/TONE MODE SELECTION

PCD3330-1

microphone mute which is controlled by the M-key. After off-hook this output is HIGH and will toggle by every press off the M-key.

5.1.15 EARTH, a/b

The EARTH output drives an external switching transistor. which connects the a- or b-line to earth.

It pulses a calibrated EARTH pulse (if selected) when the keyboard input FLASH is pressed.

5.2 Keyboard

The PCD3330-1 is programmed to work with various keyboards which can be connected to the sense column inputs COL1 to COL6 and the scanning row outputs ROW1 to ROW6. In this specification four examples are given:

• Figure 2. The simplest keyboard. All basic functions are available but only 2-key abbreviated dialling (MEM + digit) is possible.

• Figure 3. As Fig.2 but with 3 extra 1-key abbreviated dialling keys.

• Figure 4. As Fig.2 but the 10 repertory numbers can be reached via M0 to M9 with 1-key abbreviated dialling.

• Figure 5. The most complex keyboard. A second possibility for column 4 exists. This column can be selected via EEPROM.

Keyboard entries are valid 20 ms (debounce time) after the leading edge of a keyboard entry.

LINE TO EARTH CONNECTION

5.1.14 RVOL1

OUTPUTS

AND RVOL2/LSE, RINGER VOLUME

The RVOL1 and RVOL2 outputs can be used to control the ringer output volume in four steps. The volume can be changed via keyboard during ringing or conversation mode (off-hook). The selected output level is stored in EEPROM.

During on-hook dialling the RVOL2 output becomes the LSE output for switching the listening-in amplifier.

When the on-hook dialling option is not selected and the microphone mute option is active output LSE change to a

1997 Jan 15 7

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

handbook, full pagewidth

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

ROW 6

COL 1

LNR

STO

COL 2

MEM M

COL 3 COL 4 COL 5

FLASH

PCD3330-1

COL 6

MGG572

handbook, full pagewidth

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

ROW 6

Fig.2 Basic keyboard.

COL 1 COL 2 COL 3 COL 4 COL 5

LNR

STO MEM M E-1 E-2 E-3

FLASH

COL 6

MGG573

Fig.3 Basic keyboard with 3 extra 1-key abbreviated dialling keys.

1997 Jan 15 8

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with EEPROM

handbook, full pagewidth

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

ROW 6

COL 1 COL 2 COL 3 COL 4 COL 5

LNR

STO MEM M

FLASH

PCD3330-1

COL 6

MGG574

handbook, full pagewidth

Fig.4 Basic keyboard with 10 extra 1-key abbreviated dialling keys.

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

ROW 6

COL 1 COL 2 COL 3 COL 4 COL 5

LNR

STO MEM M E-1 E-2 E-3

FLASH

A/TONE

B/DIS

C/PR

HOOK

COL 6

MGG575

Fig.5 The most complex keyboard, option for column 4 is programmed into EEPROM.

1997 Jan 15 9

Philips Semiconductors Product speciﬁcation

Multistandard repertory dialler/ringer with

PCD3330-1

EEPROM

Table 1 Function of the keys

SYMBOL DESCRIPTION

0to9,∗and # Standard keyboard. In pulse dialling mode the valid keys are the 10 numeric keys (0 to 9) − the

2 non-numeric dial keys (∗ and #) have no effect on the dialling. In DTMF dialling mode the

10 numeric keys and the 2 non-numeric dial keys are valid. A to D If selected (EEPROM bit), these keys are only valid in DTMF dialling mode. TONE If selected, pulse to DTMF switching key (mixed mode dialling). DIS If selected (EEPROM bit), disconnect key will activate output

telephone set turns to the ON-HOOK state for this calibrated time. PR If selected (EEPROM bit), program ringer key. With this key the ringer output volume and ringer

repetition rate can be changed. M0 to M9 One key abbreviated dialling, the 10 repertory numbers are directly accessible via keys M0 to M9. LNR Last number redial. AP Access pause key, results in inserting an access pause in the telephone number. FLASH FLASH/EARTH key, depending on the status programmed this key starts a FLASH or an EARTH

procedure. HOOK Hook key (for on-hook dialling/loudspeaker on/off); as long as the handset stays on the cradle

activation of this key switches the set off-hook/on-hook. When the handset is not on the cradle

activation of this key switches the loudspeaker on/off (listening-in feature). STO STORE key. MEM Two-key abbreviated dialling (MEM + digit), the repertory numbers M0 to M9 are also accessible via

this two-key dialling procedure. M Mute key, each time this key is pressed and dialling is not active, the mute output goes to HIGH or

LOW depending on the previous state. E-1 to E-3 One key abbreviated dialling, three extra repertory numbers which are only directly accessible by

keys E-1 to E-3; these numbers can only be used when the repertory length is 16 digits

(programmable in EEPROM).

DP/FL for 800 ms. In this case the

1997 Jan 15 10

+ 22 hidden pages