摘要
传统的集成电路报警音源电路简单,应用方便,但种类少,而用模拟器件构成的音源其电路复杂、频率不准确、调试难,已不能满足快速变化的市场需求。为了产生多种音源的目的,采用软件编程方法,做了编程仿真调试实验。实验结果表明报警声音选择和改变非常容易,频率稳定准确,具有适合于各种报警器生产厂家使用的特点。
The audio source alarm of the traditional integrated circuit is simple and convenient, while the audio source con- stituted by the analog devices can＇t meet the market requirement due to the complicate circuit, inaccurate frequency and com- plex debugging. For producing variety of audio source, a method of the software programming and a simulation program de- bug are performed. Experimental result shows that it is easy to select and alter the alarm sound, the stable and accurate fre- quency can be gained. It is suitable for various alarm manufacturers.
出处
《现代电子技术》
2011年第18期29-30,共2页
Modern Electronics Technique
关键词
报警
音源
编程
频率
alarm
audio source
programming
frequency
