现代电子技术Issue(16)：148-151,4.
低频率电荷泵锁相环设计
Design of low-frequency charge pump PLL
庄锦清 1李开航 1罗雪芹1
作者信息
- 1. 厦门大学 物理与机电工程学院，福建 厦门 361005
- 折叠
摘要
Abstract
A charge pump PLL working in audio frequency was designed,in which a TSPC-PFD and a current steering charge pump were used. In order to get the low frequency,a VCO that get the output wave by charging or discharging the capaci-ty is used. The circuit is designed with HHNEC BCD035 process and the behavior is simulated with Cadence. The locking fre-quency of 250 kHz was achieved. Its locking time is 80 μs. when it is locked,the phase difference is 75 ns,and the ripple of the VCO control voltage is 5 mV.关键词
低频率/电荷泵锁相环/电荷泵/压控振荡器Key words
low frequency PLL/charge pump PLL/charge pump/VCO分类
信息技术与安全科学引用本文复制引用
庄锦清,李开航,罗雪芹..低频率电荷泵锁相环设计[J].现代电子技术,2014,(16):148-151,4.
