摘要
通过对数字式鉴频监相器工作原理的分析．提出了其鉴相特性中存在的死区问题及其产生的影响．并给出了减小死区特性的改进电路．该电路采用并行方式工作．减少了复位时间延迟．从而使鉴相器的性能得到改善．
ccording to the theoretical analysis of the principle of digital Phase -Frequency detecter. the problem of dead zone Phase output characteristic and its effect is discussed. The improved circuit for reducing the dead zone characteristic is presented.
关键词
鉴相器
锁相技术
频率合成
电路
phase detector
phaselock technique
frequency synthesis
