M8888-R1 datasheet(1/14 Pages) CLARE

部件名	M8888-R1

功能描述	DTMF Transceiver

PDF	14 Pages

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制造商	CLARE [Clare, Inc.]

网页	http://www.clare.com

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DS-M8888-R1

M-8888

DTMF Transceiver

1

Features

· Advanced CMOS technology for low power con-

sumption and increased noise immunity

· Complete DTMF transmitter/receiver in a single

chip

· Standard 8051, 8086/8 microprocessor port

· Central office quality and performance

· Adjustable guard time

· Automatic tone burst mode

· Call progress mode

· Single +5 Volt power supply

· 20-pin DIP and SOIC packages

· 2 MHz microprocessor port operation

· Inexpensive 3.58 MHz crystal

Applications

· Paging systems

· Repeater systems/mobile radio

· Interconnect dialers

· PBX systems

· Computer systems

· Fax machines

· Pay telephone

· Credit card verification

Description

The M-8888 is a complete DTMF Transmitter

Receiver that features adjustable guard time, auto-

matic tone burst mode, call progress mode, and a fully

compatible 8051, 8086/8 microprocessor interface.

The receiver portion is based on the industry standard

M-8870 DTMF Receiver, while the transmitter uses a

switched-capacitor digital-to-analog converter for low-

distortion, highly accurate DTMF signaling. Tone

bursts can be transmitted with precise timing by mak-

ing use of the automatic tone burst mode. To analyze

call progress tones, a call progress filter can be select-

ed by an external microprocessor.

Ordering Information

Pin Connections

Block Diagram

Part #

Description

M-8888-01P

20-pin plastic DIP

M-8888-01SM

20-pin plastic SOIC

M-8888-01T

20-pin plastic SOIC,Tape and Reel

类似零件编号 - M8888-R1

制造商	部件名	数据表	功能描述
Clare, Inc.	M8880	562Kb / 13P	DTMF Transceiver

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