TS7514 查看數據表（PDF） - STMicroelectronics

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TS7514

PROGRAMMABLE V.23 MODEM WITH DTMF

STMicroelectronics 

Figure 1 : Simplified Block Diagram

ATxI

TS7514

TxD

Tx DATA

CARRIER/TONE

FREQUENCY

GENERATOR

PRD

DMTF DATA

INPUT SHIFT

REGISTER

TS7514

V+ DGND V- AGND

Tx

FILTER

ATTENUATOR

ATO

ENP

RTS

MC/BC

MOD/DTMF

TO

PROGRAMMABLE

FUNCTIONS

BUZZER

ATTENUATOR

WLO

DCD

CARRIER/TONE

LEVEL DETECTOR

RX

RxD

DATA

FSK

DEMODULATOR

ZCO

G

Rx

FILTER

MASTER

CLOCK

CLOCK

GENERATOR

G

DUPLEXER

RAI1

RAO1

RAI2

RAO2

Xtal OUT Xtal IN

RDI RFO

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