现代电子技术2011，Vol.34Issue(23)：98-100,3.
短波段频率合成器的设计与调试
Design and Debugging of Short Wave Frequency Synthesizer
孙静林 1徐锋 2赵明忠2
作者信息
- 1. 苏州明日工程顾问有限公司,江苏苏州215021
- 2. 南京林业大学信息科学技术学院,江苏南京210037
- 折叠
摘要
Abstract
A short wave sine signal synthesizer based on PLL was designed, in which the sine wave output signal was generated by voltage-controlled oscillator, the frequency of which was divided by a prescalar, and further divided by in-chip counter, resulting in a square-wave signal with low frequency inside the chip; the reference signal was generated by a high Q crystal oscillator, the frequency of which was divided by a counter inside the chip; the 2 channels of low frequency square-wave signal were applied into the digital phase detector, a dual-way differential signal reflecting phase error was output to an active low-pass active filter, an approximate DC signal was generated to control the inversely-biased voltage on the varactor to control the VCO frequency. The simulation results show that the design can meet the requirement of actual project.关键词
无线电/短波/锁相环/频率合成Key words
radio wave/short wave/ PLL/ frequency synthesis分类
信息技术与安全科学引用本文复制引用
孙静林,徐锋,赵明忠..短波段频率合成器的设计与调试[J].现代电子技术,2011,34(23):98-100,3.
