ST75951 Datasheet, PDF (1/21 Pages) STMicroelectronics – V.34/56K ANALOG FRONT END

ST75951
V.34/56K ANALOG FRONT END
. _{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}
. _{0.5µM 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.
TQFP48 (7 x 7 x 1.4mm)
(Full Plastic Quad Flat Pack)
ORDER CODE : ST75951
Figure 1
Digital
ST75951
Digital
ST952
Tip
Ring
It integrates a high resolution A/D and D/A
converter and incorporates Krypton Isolation
Inc. patented silicon D.A.A. technology.
February 1999
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