Datasheet > SC9270C

SC9270C

更新时间： 2024-11-09 03:33:19

品牌	Logo	应用领域
士兰微 - SILAN		/
页数	文件大小	规格书
12页	174K
描述
DTMF RECEIVER

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中文翻译

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数据手册

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SC9270C 数据手册

Silan

Semiconductors_ꢀ

SC9270C/D

ꢀ

DTMF RECEIVER

DESCRIPTION

The SC9270C/D is a complete DTMF receiver integrating both

the bandsplit filter and digital decoder functions. The filter section

uses switched capacitor techniques for high- and low-group filters

and dial-tone rejection. Digital counting techniques are employed in

the decoder to detect and decode all 16 DTMF tone-pairs into a 4-bit

code. External component count is minimized by on-chip provision of

a differential input amplifier, clock-oscillator and latched 3-state bus

interface.

FEATURES

DIP-18

*Complete receiver in an 18-pin package

*Excellent performance

ꢀ

*CMOS, single 5 volt operation,

*Widely operating voltage: 1.2V ~ 5.25V

*Minimum board area

APPLICATIONS

*Paging systems

*Repeater systems / Mobile radio

*Credit card systems

*Remote control

*Central office quality

*Low power consumption

*Power-Down mode (SC9270D only)

*Inhibit-mode (SC9270D only)

*Personal computers

PIN CONFIGURATIONS

IN+

IN-

VDD

St/GT

ESt

StD

IN+

IN-

VDD

St/GT

ESt

StD

VREF

IC*

VREF

INH

IC*

PWDN

OSCI

OSCO

VSS

OSCI

OSCO

VSS

TOE

* Connect to VSS

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

ꢀ

Rev: 1.1

2001.04.27

12 3 4 5 6 7...12

中文翻译

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