73M223-CL

更新时间： 2024-11-13 22:22:03

品牌	Logo	应用领域
东电化 - TDK		调制解调器电信集成电路电信电路光电二极管
页数	文件大小	规格书
6页	49K
描述
1200 Baud FSK Modem

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中文翻译

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数据手册

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73M223-CL 数据手册

73M223

1200 Baud FSK Modem

February 1998

DESCRIPTION

FEATURES

The 73M223 modem device receives and transmits

serial and binary data over existing telephone

networks using Frequency Shift Keying (FSK). It

provides the filtering, modulation, and demodulation

•

Low cost FSK Modem

1200 baud operation

CMOS switched capacitor technology

Built-in self-test feature

to implement

serial, asynchronous data

communication channel. The 73M223 employs the

CCITT V.23 signaling frequencies of 1302 and 2097

Hz, operating at 1200 baud, and is intended for half

duplex operation over a two-line system.

On-chip filtering, and

Modulation/Demodulation

•

Uses CCITT V.23 frequencies

On chip crystal oscillator

Low power/High reliability

Does not require a microprocessor

10 mW @ 5 V supply

The 73M223 provides a cost-effective alternative to

existing modem solutions. It is ideally suited for R.F.

data links, credit verification systems, point-of-sale

terminals, and remote process control.

CMOS technology ensures small size, low-power

consumption and enhanced reliability.

16-pin plastic packages

BLOCK DIAGRAM

TXD

OSC1 13

OSC2

TEST

OSC

PHASE

COHERENT

WAVE

PROGRAMMABLE

TXA

DIGITAL

DIVIDER

SYNTHESIZER

CLK

DIGITAL

TIMING

SIGNALS

SYNC

PHASE LOCKED

LOOP

SYNC

TEST

DIGITAL

FILTER

DIGITAL

DEMODULATOR

RXD

RXA

FIL

SLICER

TEST

DELAY

SWITCHED CAP

BANDPASS

FILTER

RANDOM

SEQUENCE

GENERATOR

RXF

TEST

CAP

VDD

VSS

12 3 4 5 6

中文翻译

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