摘要
一个单片ADPCM语音录放电路 ,可应用在语音复读机、数字答录机。提供 12位AD PCM编解码、 12位D/A、A/D转换 ,适合多种DRAM或SDRAM的存储器接口、CPU接口、音频前置放大器、功率放大器、马达驱动信号等功能。本文以T3347为例 ,介绍如何在数字测试仪上测试数
A single chip CMOS LSI for voice record/play back using the 12 bit ADPCM,12 bit D/A converter is introduced.It is composed of a voice recording system with DRAM or SDRAM,CPU,an audio preamplifier,power amplifier and motor driver etc.The key point is how to test digital/analog IC with Digital Test System T3347.
出处
《微电子技术》
2002年第1期55-57,F003,共4页
Microelectronic Technology
