现代电子技术Issue(3)：97-99,3.
基于STM32的双通道石英晶体信号源设计
Design of double-channel quartz crystal signal source based on STM32
摘要
Abstract
A design method of signal source in the double⁃channel quartz crystal testing system is introduced in this paper. The DDS (direct digital frequency synthesis) technology is adopted as the core of the whole system,a high⁃stability constant temperature crystal oscillator is taken as its reference clock,and an ARM micro controller is used to control the signal source. This signal source has the four output channels,wide output frequency range,fast frequency switching speed and high frequen⁃cy resolution capacity,and can set the amplitude and phase by programming. This design provided technical support for mea⁃surement of quartz crystal electric parameters,and improved the accuracy of quartz crystal measurement. The measurement and statistical results show that the accuracy of the signal source output frequency is better than ± 0.1 ppm,and long⁃term frequency stability is better than ± 0.1 ppm.关键词
双通道/石英晶体/DDS/AD9959Key words
double-channel/quartz crystal/DDS/AD9959分类
信息技术与安全科学引用本文复制引用
崔栗峰,李东,王艳林..基于STM32的双通道石英晶体信号源设计[J].现代电子技术,2015,(3):97-99,3.基金项目
北京市系统测控重点实验室开放项目“石英晶体双独立通道微调测试技术研究” （）
