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PCD5032H

ADPCM CODEC for digital cordless telephones

Philips Electronics 

Philips Semiconductors

ADPCM CODEC for digital cordless

telephones

Product specification

PCD5032

1 FEATURES

• G.721 compliant ADPCM encoding and decoding

• ‘Bitstream’ analog-to-digital and digital-to-analog

conversion

• On-chip receive and transmit filter

• On-chip ringer and tone generator

• Programmable gain of receive and transmit path

• Serial ADPCM interface with independent timing for

maximum flexibility

• Linear PCM data accessible for digital echo cancelling

• Programmable via I2C-bus interface

• Fast receiver mute input via pin

• On-chip reference voltage

• On-chip symmetrical supply for electret microphone

• Few external components

• Low power consumption in standby mode

• Low supply voltage (single supply 2.7 V up to 5.5 V)

• CMOS technology

• Minimized EMC on digital outputs.

2 APPLICATIONS

• Digital Enhanced Cordless Telephony (DECT)

• CT2 cordless

• Speech compression.

3 GENERAL DESCRIPTION

The PCD5032 is a CMOS device designed for use in

Digital Enhanced Cordless Telephone systems (DECT),

but also suitable for other cordless telephony applications

such as CT2. The PCD5032 performs analog-to-digital

and digital-to-analog conversion, ADPCM encoding and

decoding compliant to CCITT recommendation “G.721

(blue book, 1988)”. The PCD5032 contains on-chip

microphone and earpiece amplifiers. The device can be

used in both handset and base station designs.

4 ORDERING INFORMATION

TYPE

NUMBER

PCD5032H

PCD5032T

NAME

QFP44

SO28

PACKAGE

DESCRIPTION

plastic quad flat package; 44 leads (lead length 2.35 mm);

body 14 × 14 × 2.2 mm

plastic small outline package; 28 leads; body width 7.5 mm

VERSION

SOT205-1

SOT136-1

1997 Apr 03

3

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