通过USB接口控制数/模转换器的电路设计

The circuit designing of controling a digital-to-analog converter through the USB interface

在控制系统中经常用到一些模拟信号,通常使用数/模转换器输出所需的模拟信号。USB接口是常用的微处理器外部总线接口,通过USB接口控制数/模转换器非常便捷。以CY7C68013A和AD558为例,详细说明了通过USB控制数/模转换器的电路设计方法。

In control systems there are often use some analog signals, which are outputted by the DAC usually. The USB in- terface is commonly used as microprocessor external bus interface. Using the USB interface to control digital-to-analog converter is very convenient. With CYTC68013A and AD558 as examples, this paper details circuit design method of control a digital-to-analog converter through the USB interface.