摘要
随着信号源技术的发展,在普遍使用锁相环技术实现稳定信号源的同时,直接频率合成技术(DDS)也日渐广泛运用。本文介绍基于直接频率合成器AD9835的多功能调制模块的设计,通过单片机对AD9835的简单控制,实现数字信号的频率、相位调制以及数字和模拟信号的幅度调制。
The technology of Direct Digital Frequency Synthesis has been gradually applied into the field of achieving stable signal generator as well as the prevalent use of phase-locked loop, following the development of techno-signal generator.This paper will introduce the design of multifunctional modulating module based on the DDS chip AD9835.It will achieve the frequency modulation and phase modulation of digital signals and the amplitude modulation of both digital and analog signals by the simple control of the singlechip.
出处
《微计算机信息》
北大核心
2005年第09Z期159-160,共2页
Control & Automation
基金
四川大学青年科学基金(2003-03)
