Philips PCD3330-1P, PCD3330-1T Datasheet

INTEGRATED CIRCUITS

PCD3330-1

Multistandard repertory dialler/ringer with EEPROM

Product specification

1997 Jan 15

Supersedes data of September 1992

File under Integrated circuits, IC03

Philips Semiconductors	Product specification

Multistandard repertory dialler/ringer

PCD3330-1

with EEPROM

CONTENTS

1 FEATURES

1.1Pulse/DTMF dialling

1.2Number storage

1.3Ringer

1.4General

2GENERAL DESCRIPTION

3ORDERING INFORMATION

4PINNING

5FUNCTIONAL DESCRIPTION

5.1Inputs/Outputs

5.1.1COL1 to COL6, keyboard inputs

5.1.2DMO, dial mode output

5.1.3HOOK, on/off hook detection input

5.1.4XTAL1 and XTAL2, oscillator input/output

5.1.5RESET, reset input

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

5.1.7ROW1 to ROW6, keyboard outputs

5.1.8MUTE, mute output

5.1.9RTO, ringer tone output

5.1.10DP/FL, pulse dialling and register recall output

5.1.11VDD and VSS

5.1.12TONE, DTMF or ringer tone output

5.1.13PD/DTMF, pulse/tone mode selection

5.1.14RVOL1 and RVOL2/LSE, ringer volume outputs

5.1.15EARTH, a/b line to earth connection

5.2Keyboard

5.3EEPROM organization and programming procedures

5.3.1EEPROM organization

5.3.2EEPROM programming procedures

5.3.2.1Factory EEPROM programming procedure

5.3.2.2EEPROM programming procedures via keyboard

5.4Operation mode overview

5.5Pulse/DTMF dialling function

5.5.1Pulse/DTMF mode selection by pin

5.5.2Pulse dialling (PD/DTMF = LOW)

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

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

5.5.5Flash or Earth function

5.5.6Disconnect function

5.5.7Mute function (M-key)

5.5.8On-hook dialling control

5.6Number storage, transmission and redial

5.6.1Number storage and transmission

5.6.2Last number redial (1 to 24 digits)

5.6.3Access pause by Cursor method

5.6.4Access pause by Atlanta procedure

5.6.510-number repertory dialling

5.6.5.1Chain dialling

5.6.63-number repertory dialling

5.6.7Access pause storage

5.6.8Manual access pauses

5.6.9Storing repertory numbers

5.7Ringer function

5.7.1Ringer output pin selection

5.7.2Ringer input frequency measurement

5.7.3Ringer melodies selection

5.7.4Ringer volume change during conversation and ringer mode

5.7.5Ringer repetition rate change during conversation and ringer mode

6LIMITING VALUES

7HANDLING

8DC CHARACTERISTICS

9APPLICATION INFORMATION

10PACKAGE OUTLINES

11SOLDERING

11.1Introduction

11.2DIP

11.2.1Soldering by dipping or by wave

11.2.2Repairing soldered joints

11.3SO

11.3.1Reflow soldering

11.3.2Wave soldering

11.3.3Repairing soldered joints

12DEFINITIONS

13LIFE SUPPORT APPLICATIONS

1997 Jan 15

2

Philips Semiconductors	Product specification

Multistandard repertory dialler/ringer with

PCD3330-1

EEPROM

1 FEATURES

1.1Pulse/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 : 2 or 2 : 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, M1, M2 or M2)

–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).

1.2Number 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.

1.3Ringer

∙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.

1.4General

∙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

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 VDD to VSS) can be 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.

TYPE		PACKAGE
NUMBER	NAME	DESCRIPTION	VERSION
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

1997 Jan 15

4

Philips Semiconductors	Product specification

Multistandard repertory dialler/ringer with

PCD3330-1

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
					21	dial pulse/flash inverted output
	DP/FL
	VSS				22	negative supply
	TONE				23	DTMF tones or ringer melody
						output
	VDD				24	positive supply
	PD/DTMF				25	pulse/DTMF dial selection
	RVOL1				26	ringer volume output 1
	RVOL2/LSE				27	ringer volume output 2
						/loudspeaker enable output
	EARTH				28	earth output

handbook, halfpage

COL1	1		28			EARTH
COL2						RVOL2/LSE
	2		27
COL3
	3		26			RVOL1
COL4						PD/DTMF
	4		25
COL5						VDD
	5		24
COL6	6		23			TONE
DMO						VSS
	7		22
			PCD3330-1
HOOK	8		21			DP/FL
XTAL1						RTO
	9			20
XTAL2	10			19		MUTE
RESET	11			18		ROW6
CE/RF	12			17		ROW5
ROW1	13			16		ROW4
ROW2	14		15			ROW3
			MGG571

Fig.1 Pin configuration.

1997 Jan 15

5

Philips Semiconductors	Product specification

Multistandard repertory dialler/ringer with

PCD3330-1

EEPROM

5 FUNCTIONAL DESCRIPTION

5.1Inputs/Outputs

5.1.1COL1 TO COL6, KEYBOARD INPUTS

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).

5.1.2DMO, DIAL MODE OUTPUT

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.

5.1.3HOOK, ON/OFF HOOK DETECTION INPUT

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.

5.1.4XTAL1 AND XTAL2, OSCILLATOR INPUT/OUTPUT

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

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

5.1.6CE/RF, CHIP ENABLE AND RINGER-FREQUENCY

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.

5.1.7ROW1 TO ROW6, KEYBOARD OUTPUTS

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).

5.1.8MUTE, 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

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.

5.1.5RESET, 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).

∙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.

5.1.9RTO, 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).

5.1.10DP/FL, PULSE DIALLING AND REGISTER RECALL

OUTPUT

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

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

1997 Jan 15

6

Philips Semiconductors	Product specification

Multistandard repertory dialler/ringer with

PCD3330-1

EEPROM

It pulses a calibrated FLASH or register recall pulse

(if selected) when the keyboard input FLASH is pressed.

5.1.11VDD AND VSS

VDD and VSS are the supply terminals.

5.1.12TONE, DTMF OR RINGER TONE OUTPUT

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.

5.1.13PD/DTMF, PULSE/TONE MODE SELECTION

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.

5.1.14RVOL1 AND RVOL2/LSE, RINGER VOLUME

OUTPUTS

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

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.

5.1.15EARTH, a/b LINE TO EARTH CONNECTION

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.

5.2Keyboard

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.

1997 Jan 15

7

Philips Semiconductors	Product specification

Multistandard repertory dialler/ringer with

PCD3330-1

EEPROM

COL 1

COL 2

COL 3

COL 4

COL 5

COL 6

ROW 1

1

2

3

ROW 2

4

5

6

ROW 3

7

8

9

ROW 4

*

0

#

ROW 5

LNR

AP

FLASH

ROW 6

STO

MEM

M

MGG572

Fig.2 Basic keyboard.

handbook, full pagewidth

COL 1

COL 2

COL 3

COL 4

COL 5

COL 6

ROW 1

1

2

3

ROW 2

4

5

6

ROW 3

7

8

9

ROW 4

*

0

#

ROW 5

LNR

AP

FLASH

ROW 6

STO

MEM

M

E-1

E-2

E-3

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

PCD3330-1

EEPROM

handbook, full pagewidth

COL 1

COL 2

COL 3

COL 4

COL 5

COL 6

ROW 1

1

2

3

M0

M1

ROW 2

4

5

6

M2

M3

ROW 3

7

8

9

M4

M5

ROW 4

*

0

#

M6

M7

ROW 5

LNR

AP

FLASH

M8

M9

ROW 6

STO

MEM

M

MGG574

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

handbook, full pagewidth

COL 1

COL 2

COL 3

COL 4

COL 5

COL 6

ROW 1

1

2

3

A/TONE

M0

M1

ROW 2

4

5

6

B/DIS

M2

M3

ROW 3

7

8

9

C/PR

M4

M5

ROW 4

*

0

#

D

M6

M7

ROW 5

LNR

AP

FLASH

HOOK

M8

M9

ROW 6

STO

MEM

M

E-1

E-2

E-3

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
0 to 9, 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
		DP/FL for 800 ms. In this case the
	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).

1997 Jan 15

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