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本文所要介绍的IED系列8～20s语音录放电路,具有以下主要特点:1)该电路外围元件少、电路简单、操作方便的单片录放系统。2)直接模拟量存储(DAST)重现优质原声。3)零功率信息存储,省掉备用电源。4)信息可保存100年以上,可反复录音达10万次(放音寿命无限)。5)语音固化无需编程或开发装置。6)较强的选址能力可处理多达160段语音信息。7)具有自动省电模式,录放周期后仅需0.5μA保持电流。8)单一电源供电。
This article describes the IED series 8 ~ 20s voice recording circuit, has the following main features: 1) the circuit peripheral components, simple circuit, easy to operate single-chip recording and reproducing system. 2) Direct analog storage (DAST) to reproduce good sound quality. 3) zero power information storage, save backup power. 4) The information can be stored for more than 100 years, can repeat recording up to 100,000 times (unlimited playback life). 5) Voice curing without programming or development device. 6) strong site capacity can handle up to 160 voice messages. 7) With automatic power-saving mode, only 0.5μA holding current after recording and playback cycles. 8) Single power supply.