利用锁相环路实现程控频率合成技术的设计分析

The Design and Analysis of Program Contolled Frepuency Syntheses Using Phase-Locked Loop Technique

本文简要地叙述了应用锁相环路实现信号合成的基本原理。采用通用CMOS数字集成锁相环路CD4 0 4 6,由MCS - 5180 31单片机设定预置值给定时器T1形成标频 ,并用定时 /计数器 82 53为分频器 ,由锁相环路产生各种离散的频率输出 ,实现可程控频率合成技术的设计分析。

The basic principle of using phase locked loop technique to realize the design and analysis of program controlled frequency syntheses was introduced. Digital integrated circuit CD4046 was used. The standard frequency was made by MCS 518031 chip beforehand. The 8235 was used as a timing pulse generator. All kinds of differential frequency signalas can be produced.