基于DSP和USB2.0的声音信号采集系统设计

针对声音信号采集系统中单片机作处理器而使系统速度慢及数学运算能力差的问题,构建了基于DSP和USB2.0的高速度,高精度数据采集系统。系统由TLC320AD50C为AD转换器,TMS320VC5402为DSP核心处理器,CY7C68013为USB2.0接口芯片组成。详细阐述了系统的软硬件结构及总体结构设计方案。经测试该设计是一种非常有效的声音信号采集方式,系统具有较高的处理速度和精度以及良好的实时性和扩展性。本系统具有很好的应用前景。

Design of Sound Signal Acquisition System Based on DSP and USB2.0

Aiming at the question that SCM acts as the processor while leads to the system speed be slow and the mathematics operational capability be poor in the sound signal acquisition system,a high-speed and accuracy data acquisition system has been constructed based on DSP and the USB2.0.The system is composed by TLC320AD50C which is the AD switch,TMS320VC5402 which is the DSP core processor,CY7C68013 which is the USB2.0 connection chip.The structure of the system’s hardware and software and the design scheme of overall structure are described in detail.The design which has been tested is a very effective sound signal acquisition mode and the system has high processing speed and accuracy as well as good real-time and expansibility.The system has a good prospect.