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ST75951 데이터시트(PDF) 1 Page - STMicroelectronics |
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ST75951 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 21 page ST75951 V.34/56K ANALOG FRONT END February 1999 TQFP48 (7 x 7 x 1.4mm) (Full Plastic Quad Flat Pack) ORDER CODE : ST75951 . 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 AR- RANGEMENT (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 . 0.5 µM CMOS PROCESS DESCRIPTION ST75951 is an analog front-end designed to im- plement 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 inter- faces 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. ST75951 ST952 Digital Digital Tip Ring Figure 1 1/21 |
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