PCD5032 datasheet(3/24 Pages) PHILIPS

3 / 24 page

1997 Apr 03

Philips Semiconductors

Product speciﬁcation

ADPCM CODEC for digital cordless

telephones

PCD5032

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.

APPLICATIONS

• Digital Enhanced Cordless Telephony (DECT)

• CT2 cordless

• Speech compression.

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.

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

PCD5032H

QFP44

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

body 14

× 14 × 2.2 mm

SOT205-1

PCD5032T

SO28

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

SOT136-1

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