具有宽捕获范围的时钟恢复电路(英文)  

A Clock Recovery Circuit with Large Acquisition Range

作　　者：李学初[1] 高清运[1] 陈浩琼[1] 

机构地区：[1]南开大学信息技术科学学院,天津300071

出　　处：《南开大学学报（自然科学版）》2008年第2期75-79,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：the Key Technologies R&D program of the Tianjin Municipal sicence;Technology Commission (06YFGPGX08300)

摘　　要：给出了一个具有宽捕获范围的集成时钟恢复电路,采用了简单而有效的锁定技术,解决鉴相器固有的捕获范围较小的问题.时钟恢复电路采用0.25μm标准 CMOS 工艺实现,将其置于100 MHz PHY 中进行了流片,测试结果表明时钟恢复电路能正常工作.A monolithic clock recovery circuit with extremely large acquisition range is proposed. In order to overcome the problem of small acquisition range of the phase detector, an effective locking method is presented. The clock recovery circuit is designed and implemented using 0. 25 μm standard CMOS technology. A 100 MHz PHY with the proposed clock recovery circuit is taped out and tested. The test result shows that the recovery circuit can recover clock correctly.

关 键 词：时钟恢复 100 MHZ PHY Hogge鉴相器 捕获范围 

分 类 号：TN453[电子电信—微电子学与固体电子学]