DESCRIPTION

ST75951 is an analog front-end designed to implement modems application up to 56Kbps.

ST75951 interfaces between DSP or HSP signals and capacitive isolation barrier.

A complete D.A.A. is made with ST952 which interfaces between capacitive isolation barrier and the telephone line.

It integrates a high resolution A/D and D/A converter and incorporates Krypton Isolation Inc. patented silicon D.A.A. technology.

■ V.34/56K MODEM ANALOG FRONT-END (AFE)

■ 16 BITS OVERSAMPLING SIGMA DELTA A/D AND D/A CONVERTERS

■ 85dB DYNAMIC RANGE

■ PROGRAMMABLE SAMPLING FREQUENCY

■ AUXILIARY ANALOG INPUT

■ MODEM SIDE OF SILICON DATA ACCESS ARRANGEMENT (DAA) INTEGRATED WITH AFE

■ KRYPTON ISOLATION INC. PATENTED TECHNOLOGY ELIMINATE TRANSFORMER OR LINEAR OPTO-COUPLERS

■ RING DETECT, LINE IN USE, CLID AND OVER LOOP CURRENT DETECT

■ 4 GPIO ASSOCIATED WITH 1 GENERAL PURPOSE INTERRUPT OUTPUT

■ ANALOG AND DIGITAL LOOP-BACK MODE

■ SYNCHRONOUS SERIAL INTERFACE FOR PROCESSORS DATA EXCHANGE

■ ON CHIP REFERENCE VOLTAGE

■ SINGLE POWER SUPPLY RANGE : 2.7V TO 5.25V

■ LOW POWER CONSUMPTION : 40mW @ 3.3V

■ TQFP48 PACKAGE

■ 0.5µM CMOS PROCESS