CM8888-2

更新时间： 2024-02-11 15:52:22

品牌	Logo	应用领域
CALMIRCO		/
页数	文件大小	规格书
13页	322K
描述
CMOS INTEGRATED DTMF TRANCEIVER

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技术参数
数据手册

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CM8888-2 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	20
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.82	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G20	长度：	12.905 mm
功能数量：	1	端子数量：	20
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	2.85 mm
最大压摆率：	10 mA	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
电信集成电路类型：	DTMF SIGNALING CIRCUIT	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.635 mm
Base Number Matches：	1

CM8888-2 数据手册

CALIFORNIA MICRO DEVICES

CM8888/8888-2

CMOS INTEGRATED DTMF TRANCEIVER

Fea tur es

Applications

Advanced CMOS technology for low power

consumption and increased noise immunity

Complete DTMF

Paging systems

Repeater systems/mobile radio

Interconnect dialers

PABX systems

Transmitter/Receiver

Standard 8051, 8086/8 microprocessor port

Central office quality and performance

Adjustable guard time

Automatic tone burst mode

Call progress mode

Computer systems

Fax machines

Pay telephones

Credit card verification

Single +5 volt power supply

20-pin DIP, 20-pin DIP EIAJ, 20-pin SOIC,

28-pin PLCC packages

2 MHz microprocessor port operation

Product

Description

The CAMD CM8888/8888-2 is a fully integrated DTMF Transceiver, featuring adjustable guard time, automatic tone burst

mode, call progress mode, and a fully compatible 8051, 8086/8 microprocessor interface. The CM8888/8888-2 is

manufactured using state-of-the-art advanced CMOS technology for low power consumption and precise data handling.

The CM8888/8888-2 is based on the industry standard CM8870 DTMF Receiver, while the transmitter utilizes a switched-

capacitor D/A converter for low distortion, highly accurate DTMF signaling. Internal counters provide an automatic tone

burst mode which allows tone bursts to be transmitted with precise timing. A call progress filter can be selected by an

external microprocessor for analyzing call progress tones. The CM8888-2 is electrically equivalent to the CM8888 but does

not include the call progress function.

Block Diagram

All trademarks are the property of their respective holders.

C0400798D

5/00

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

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