基于音频编解码器TLV320AIC3106与FPGA/CPLD的数字化语音处理系统

A Digital Speech Processing System Based on Audio CODEC TLV320AIC3106 and FPGA/CPLD

该文介绍了高性能立体声音频编解码芯片TLV320AIC3106的基本特点、性能以及使用方法,提供了基于FPGA/CPLD的数字化音频处理系统的典型电路设计方案。该方案由语音芯片(TLV320AIC3106)和处理器(FPGA/CPLD)两部分组成。语音芯片通过ADC和DAC完成模拟音频信号与数字信号之间的相互转换,处理器则完成对经模数转换后的语音信号在数字域处理的过程。该方案可以充分发挥FPGA/CPLD所具有的灵活性好、实时性能高及并行处理能力强的特点。

This paper introduces the basic characteristics,performance and usage of high performance stereo audio codec chip TLV320AIC3106,and provides a typical circuit design scheme of digital audio processing system based on FPGA/CPLD.The scheme consists of two parts:speech chip(TLV320AIC3106)and processor(FPGA/CPLD).The speech chip completes the conversion between analog audio signal and digital signal through ADC and DAC,and the processor completes the process of the speech signal after analog-to-digital conversion in the digital domain.The scheme can give full play to the advantages of FPGA/CPLD,such as good flexibility,high real-time performance and strong parallel processing ability.