基于直接数字频率合成芯片的复杂信号发生器

A Complex Signal Generator Based on DDS Chip

摘要:

直接数字频率合成(Direct Digital Synthesis,DDS)芯片具有多种信号工作模式,对要求复杂信号输出的电子设备是一种好的选择。本文基于AD9854芯片,介绍利用复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)开发其功能,产生特殊复杂信号的方法,给出了设计实例和实测结果,验证了设计的有效性。

Abstract:

Direct Digital Synthesis(DDS)chip has many working models.It is a good choice for some electronic equipments which reqire complex signals.Based on the chip of AD9854,the paper develops a technology which utilizes CPLD device to generate specific signal wa