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利用BA9902语音录放模块可以方便地制作一个实用的留言器(不用录音机和磁带)。 BA9902简介 BA9902是一种20秒高质量单片语音录放模块。该模块由软封装集成电路与阻容元件组成,做在一块22×18mm的印刷板上。该模块能用喇叭当作话筒来录音,可组成最简单的录放电路;也可以采用话筒(MIC)录音及线录,采用线录有更好的质量;不怕掉电,录入的信息可保存100年,并且可重复录10万次(典型值);功耗低,录放时工作电流为25mA(典型值),录放完毕后自动转入备用状
Use BA9902 voice recording and playback module can easily create a practical message (without tape recorders and tapes). BA9902 Introduction BA9902 is a 20 seconds high quality monolithic voice recording and playback module. The module consists of a flexible package integrated circuit and RC components, made in a 22 × 18mm printed board. The module can use the speaker as a microphone to record, can be composed of the most simple circuit recording and recording; microphone (MIC) can also be used to record and line recording, line recording with better quality; not afraid of power failure, the input information can be saved 100 Year, and can be repeated recorded 100,000 times (typical); low power consumption, recording and recording when the operating current of 25mA (typical), after recording automatically transferred to the standby