摘要
介绍了用数字方式实现频率合成技术的基本原理和DDS芯片AD9854的内部结构及工作模式。设计了一种采用单片机控制AD9854为核心的信号发生器,它具有输出信号波形种类多、精度高、可程控等特点。文中详细分析了该信号发生器的系统结构、软硬件设计和具体实现电路。
This paper introduces the principle of DDS, presents the structure and five operation modes of AD9854. A signal generator designed by MCU controlled AD9854, has virtues of generating multiple sorts of signals, high precision and programming of output signals. Its system structure, the design of software and hardware and the way to realize the circuitry is analyzed in detail.
出处
《微计算机信息》
北大核心
2006年第02Z期241-243,共3页
Control & Automation
基金
江苏省攻关计划资助项目(BE2002327)
