一种基于单片机控制ISD4004语音芯片应用电路

An Application Circuit of Phonetic Chip ISD4004 Based on the Control of Single Board Computer

ISD4004语音系列芯片是美国ISD公司推出的产品,具有多次重复录放,存储时间长,使用时不需扩充存储器,所需外围电路简单等特点。本文将结合ISD4004芯片在语音报站器中的一个实际应用,对其功能和使用方法做一简单介绍,从而使读者对ISD4004系列语音芯片的使用有个初步的了解。

ISD4004 is a phonetic chip produced by ISD company of America. It has many advantages including recording and playing for many times , using without expansion of the storage. The assistant circuit that the chip needs is simple and the time that the chip can store is long. Combining with the actual application of ISD4004 chip in phonetic machine for station reporting, this paper introduce simply about the function and method of using. It is helpful for reader to understand the application of phonetic chip ISD4004.