摘要
以AT89C51为核心,采用单片语音录放芯片ISD1420和A/D转换器ADC0809,设计了多路信号检测和语音报警器,包括信号放大、处理电路,A/D转换电路,语音报警模块、显示模块、键盘输入模块等.
This paper is about a Multi - channel signal detection and voice alarm system controller which takes AT89C51 as the core, designed with ISDI420 voice chip and ADC0809. The system consists of operational amplifiers circuit, signal process circuit, A/D transformation circuit, voice warning circuit, numerical display part and keyboard input part.
出处
《佳木斯大学学报（自然科学版）》
CAS
2009年第2期181-184,共4页
Journal of Jiamusi University：Natural Science Edition
基金
陕西理工学院省教育厅专项科研项目(08JK243)
