According to the technology of direct digital synthesis(DDS),a kind of low frequence signal source was introduced based on the Complex Programmed Logical Device(CPLD)and Single Chip Micyoco(SCM).

• 介绍了一种应用直接数字频率综合器(DDS)技术,基于可编程逻辑器件(CPLD)和单片机设计的低频信号源。