ST75C520

HIGH SPEED FAX MODEM DATA PUMP

June 1995

PRELIMINARY DATA

PQFP64

(Plastic Quad Flat Pack)

ORDER CODE : ST75C520 PQFP

.

ITU-T V.17, V.29, V.27ter, V.21 WITH FAX

SUPPORT

.

ITU-T V.23, V.21, BELL 103

.

V.17, V.29 (T104), V.27ter SHORT TRAINS

.

V.33 HALF-DUPLEX

.

1800Hz OR 1700Hz CARRIER

.

SINGLE CHIP COMPLETE DATA PUMP

.

SINGLE 5V POWER SUPPLY :

- TYPICAL ACTIVE POWER CONSUMPTION :

375mW

- LOW POWER MODE (typ. 5mW)

.

EXTENDED MODES OF OPERATIONS :

- FULL IMPLEMENTATION OF THE V.17,

V.33, V.29 AND V.27ter HANDSHAKES

- AUTODIAL AND AUTOANSWER CAPABIL-

ITY

- PROGRAMMABLE TONE DETECTION AND

FSK V.21 FLAG PATTERN DETECTION

DURING HIGH SPEED RECEPTION

- PROGRAMMABLE CALL PROGRESS AND

CALL WAITING TONE DETECTORS IN-

CLUDING DTMF

- PROGRAMMABLE CLASS

™ DETECTION

CAPABILITY

- WIDE DYNAMIC RANGE (>48dB)

- A-LAW VOICE PCM MODE

.

VERSATILE INTERFACES :

- PARALLEL 64 x 8-BIT DUAL PORT RAM

- SYNCHRONOUS/HDLC PARALLEL DATA

HANDLING

- HDLC FRAMING SUPPORT

- V.24 INTERFACE

- FULL OPERATING STATUS REAL TIME

MONITORING

- FULL DIAGNOSTIC CAPABILITY

- DUAL 8-BIT DAC FOR CONSTELLATION

DISPLAY

DESCRIPTION

The SGS-THOMSON Microelectronics ST75C520

chip is a highly integrated modem engine, which

can operate with all currently used FAX group III

standards up to 14400bps. Full V.21, V.23 and Bell

103 full duplex

modem standards are imple-

mented.

This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.

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