电荷泵锁相环环路滤波器参数设计与分析

从环路滤波器的基本概念出发,主要论述了电荷泵锁相环环路滤波器参数的设计方法(包括1阶,2阶,3阶环路滤波器),通过比较闭环的参数设计方法的不足,提出了一种新的开环环路滤波器参数的设计方法,并做出总结,最后利用Cadence公司Virtuoso系列主要对二阶无源低通滤波器进行仿真,验证了本方法的正确性,有一定的实用价值。

Parameters' Design and Analysis of the Charge Pump Phase-locked Loop's Loop Filter

Based on the basic concept of loop filter,the paper mainly discusses the design method of the parameter of a charge pump phase-locked loop loop filter(concluding one order,two order,three order).According to compare with the design method of the parameter of closed loop,it puts forward a kind of design method which is the design method of the parameter of the opened loop,and make a summary.At last,making use of the Virtuoso series of the Cadence firm mainly to two order without source low-pass filter carry on imitate really,the accuracy of this method is verified,there is certain practical value.