基于单片机的DDS多波形发生器的设计  

Design of DDS Multi-Waveform Generator Based on MCU

作　　者：刘玉利[1] 

机构地区：[1]哈尔滨学院,黑龙江哈尔滨150036

出　　处：《自动化技术与应用》2011年第8期56-59,65,共5页Techniques of Automation and Applications

摘　　要：本文采用直接数字式频率合成技术DDS,以AD9852、AD9833芯片为核心,由单片机控制,设计了一种结构简单性能优良的波形发生器,可输出正、余弦波,方波、三角波等。该波形发生器具有频率分辨率高,频率切换快,频带宽及全数字化易于集成等诸多优点,应用范围十分广泛。Based on direct digital frequency synthesis （DDS）, the AD9852 ＆ AD9833 chips as the core, the MCU control, a kind of waveform generator, with a simple structure and excellent performance, that can output sine and cosine wave, square wave, triangle wave, is designed. This function generator has a wide range of applications, because it has characteristic by many virtues, for instance, a higher frequency resolution, faster frequency-switching, wide frequency bandwidth and easy integration of digital technology.

关 键 词：波形发生器 DDS 频率合成 控制字 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]