摘要
本文介绍了双音多频DualToneMulti-friquence(DTMF)信号编码/解码芯片MT8888在家庭自动电话拨号报警系统中的应用,给出了MT8888与单片机AT89C51接口的硬件电路及软件控制程序。
This issue introduces the basic principle of MT8888, a new type dual tone multi- frequency signal transmitter/receiver and its application in Auto-Alarm System for family. It is used in wire/wireless communication equipment and control system widely for its high integration, programmable and having several operation mode.
出处
《微计算机信息》
北大核心
2005年第5期113-114,共2页
Control & Automation
基金
"先进制造技术北京市重点实验室资助"编号:2004A024
