函数信号发生器的设计  

Design of Functional Signal Generator

作　　者：杨双义 Yang Shuangyi(Zhengzhou Institute of Industrial Applied Technology,Zhengzhou Henan,451100)

机构地区：[1]郑州工业应用技术学院

出　　处：《电子测试》2019年第16期18-19,共2页Electronic Test

摘　　要：该设计是一个函数信号发生器,它可以根据需要产生相应的模拟信号波形,比如正弦波、三角波、方波等电压信号。并且其所产生的各种波形可以对振幅和频率进行调节。本系统的核心部分采用89C52单片机控制DDS波形产生核心模块AD9833组成的振幅和频率均可调的函数信号发生器,其可以产生正弦波、三角波及方波,他可以通过单片机利用程序控制调节波形的频率和振幅,并可以利用按键实现上述三种波形之间的切换。This design is a function signal generator,which can generate corresponding analog signal waveforms,such as sine wave,triangle wave,square wave and other voltage signals.And all kinds of waveforms generated by it can adjust the amplitude and frequency.The core part of the system uses 89C52 MCU to control the function signal generator composed of AD9833,the core module of DDS waveform generation,whose amplitude and frequency can be adjusted.It can generate sine wave,triangle wave and square wave.It can adjust the frequency and amplitude of waveform by MCU using program control,and can realize the switching between the above three waveforms by using keys.

关 键 词：AD9833 AT89C52 DDS模块 函数信号发生器 

分 类 号：TM935[电气工程—电力电子与电力传动]