摘要
介绍了采用单片机控制DDS+PLL组合式频率合成器的方法,结合实际项目给出了采用双模分频器MB1505和直接频率合成器AD9835寄存器参数的算法,以及如何利用单片机对频率进行微调和线性校准,并对设计的频率合成器进行了测试实验。
The paper introduces how to use MCU control DDS and PLL to generate exact frequency, as well as the arithmetic of double module PLL MB1505 and DDS AD9835 ＇s register parameter combined with project. And the inching and linearity adjust of frequency by MCU are studied. Finally, the frequency synthesizer is tested by experiment.
出处
《微型机与应用》
2011年第1期13-15,共3页
Microcomputer & Its Applications
关键词
单片机
短波电台
频率合成
MCU
shortwave transceiver
frequency synthesizer
