| ISD4004语音芯片的工作原理及其在智能控制系统中的应用 |
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| 引用本文： | 张常年,王振红,李洋. ISD4004语音芯片的工作原理及其在智能控制系统中的应用[J]. 电子元件与材料, 2001, 20(6): 22-23,27 |
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| 作者姓名： | 张常年 王振红 李洋 |
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| 作者单位： | 北方工业大学工学院, |
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| 摘 要： | ISD4004是一种采用CchipCorder专利技术的语音芯片。即此芯片无须A/D转换和压缩就可以直接储存,没有A/D转换误差,在一个记录位(bit)可存储250级声音信号,相当于通常的A/D记录的8倍。片内集成了晶体振荡器、麦克前置放大器、自动增益控制等,只要很少的外围器件,就可以构成一个完整的声音录放系统。本文介绍了ISD4004的原理,特点,功能及其在智能控制系统中的应用。
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| 关 键 词： | ISD4004语音芯片 89C51单片机 智能控制系统 |
| 文章编号： | 1001-2028(2001)06-0022-02 |
Phonetic Chip ISD4004 and Its Application in Intelligent Control System |
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| ZHANG Chang-nian,WANG Zhen-hong,LI Yang. Phonetic Chip ISD4004 and Its Application in Intelligent Control System[J]. Electronic Components & Materials, 2001, 20(6): 22-23,27 |
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| Authors: | ZHANG Chang-nian WANG Zhen-hong LI Yang |
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| Abstract: | ISD4004 is a phonetic chip using CchipCorder patented technology. It can directly access without A/D converting and compressing, and has no converting errors. 250-level vocal signal can access in one record bit, about eight times of A/D recorder. Crystal oscillator, microphone preamplifier, and auto-gain are integrated in one chip. A full audio-recorder system can be constructed with a few peripheral devices. The principle, characteristics, and function of ISD4004, and its application in intelligent controlled system are presented. |
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| Keywords: | ISD4004 phonetic chip 89C51 single chip microcomputers intelligent control system |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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