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參數(shù)資料
| 型號： | ST75951 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | V.34/56K Analog Front End(模擬前端) |
| 中文描述： | V.34/56K模擬前端（模擬前端） |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 193K |
| 代理商： | ST75951 |
ST75951
V.34/56K ANALOG FRONT END
August 1998
PRELIMINARY DATA
TQFP48
(7 x 7 x 1.4mm)
(Full Plastic Quad Flat Pack)
ORDER CODE :
ST75951
This is advance information on a newproduct now in developmentor undergoingevaluation. Detailsare subject to change without notice.
.
V.34/56KMODEMANALOGFRONT-END (AFE)
.
16 BITS OVERSAMPLING SIGMADELTA A/D
AND D/ACONVERTERS
.
85dB DYNAMIC RANGE
.
PROGRAMMABLESAMPLING FREQUENCY
.
AUXILIARYANALOGINPUT
.
MODEM SIDEOF SILICONDATAACCESSAR-
RANGEMENT(DAA) INTEGRATEDWITHAFE
.
KRYPTON
TECHNOLOGY ELIMINATE TRANSFORMER
OR LINEAR OPTO-COUPLERS
.
RING DETECT, LINE IN USE, CLID AND
OVER LOOPCURRENT DETECT
.
4 GPIO ASSOCIATED WITH 1 GENERAL
PURPOSEINTERRUPT OUTPUT
.
ANALOGAND DIGITALLOOP-BACKMODE
.
SYNCHRONOUS SERIAL INTERFACE FOR
PROCESSORSDATA EXCHANGE
.
ON CHIP REFERENCE VOLTAGE
.
SINGLEPOWER SUPPLYRANGE :
2.7V TO 5.25V
.
LOWPOWER CONSUMPTION : 40mW @ 3V
.
TQFP48 PACKAGE
.
0.5
μ
M CMOS PROCESS
ISOLATION
INC.
PATENTED
DESCRIPTION
ST75951 is an analog front-end designed to im-
plement modems application up to 56Kbps.
ST75951 interfaces between DSP or HSP signals
and K
2
934/K
2
944 capacitiveisolation barrier.
AcompleteD.A.A.is madewithST952whichinter-
faces between K
2
934/K
2
944 capacitive isolation
barrier and the telephoneline.
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
K
2
944
K
2
934
Tip
Ring
7
Figure 1
1/21
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