摘要
在语音设备的设计过程中,有一重要环节就是选择合适的模拟通道器件与DSP配合工作;在所完成的某小型便携式语音终端的硬件平台开发中,选取TMS320C5416用于语音编解码等复杂语音信号处理;而在众多可以与该DSP配合的AD、DA器件中,集A/D和D/A转换于一身的AD73322成为最好的选择;文中以实际设计案例给出了单片AD73322及多片AD73322级联(外部音频通道较多的场合)与TMS320C5416芯片配合使用的硬件连接方法和编程策略;对于类似的DSP+AD/DA硬件平台设计具有普遍的参考意义。
It is important to select a proper analog device working with DSP when a studio set is being developed. In a potable studio set, TMS320C5416 was selected to process complicated arithmetic, and AD73322 is selected to work with the DSP. AD73322 features two16-bit A-D conversion channels and two 16-bit D-A conversion channels and Programmable Input/Output Sample Rates as well, which insured the performance of the set developed and the space of PCB was saved at the same time. Papers presented hardware connection methods and programming strategy when it was connected with the TMS320C5416 chip. The method mentioned in the papers has been successfully used in the author developed voice processing terminal design and is proved effective. Papers are worth refereneing for similar design.
出处
《计算机测量与控制》
CSCD
北大核心
2010年第4期935-937,共3页
Computer Measurement &Control
基金
广东省科技攻关项目(2008B080701007)
广东省自然科学基金项目(9151042001000017)
