简易数字信号发生器的设计与实现  

Design and Implementation of Simple Digital Signal Generator

作　　者：廖娜[1] 魏西媛[1] 荆海霞[1] 

机构地区：[1]西安外事学院,陕西西安710077

出　　处：《科技信息》2008年第26期430-431,共2页Science & Technology Information

摘　　要：本文介绍了一种基于DDS数字信号发生器的设计与实现的方法,给出了以AD9850芯片为核心的硬件原理图。通过单片机对DDS频率控制字的写入,编程实现输出特定频率的波形,该系统输出波形频率连续可调、稳定度、精度高,适用于当代的尖端的通信系统和精密的高精度仪器。A method of Digital Signal Generator based on DDS is introduced in this paper. the core principle of hardware based on AD9850 is presented. Through the DDS frequency control MCU write the word,programming is to implement output specific frequency wave. the system can output waveform frequency continuously adjustable,stability,high accuracy,and it apply to the sophisticated communications systems and sophisticated high-precision equipment.

关 键 词：DDS AD9850 信号发生器 

分 类 号：TN74[电子电信—电路与系统]