音响系统的USB接口开发分析及主流芯片比较。越来越多的音响系统采用USB接口标准，同时市场上出现了各种USB芯片方案，如何选择合适的芯片方案来设计系统具有一定挑战性，设计工程师需要了解USB音响系统的架构、USB主流芯片的功能特性、控制模块的设计。-USB audio system interface chips mainstream development analysis and comparison. An increasing number of audio systems using USB interface standard, while the market appears on a variety of USB chip program, how to select appropriate programs to chip design system must have a challenging, design engineers need to understand the architecture of the USB audio system, USB mainstream chip functional properties, Design of the Control Module.