Improve the Dynamic Matching of the Source-Switching Charge Pump for High-Performance Phase-Locked Loops

摘要：

Conventional source-switching charge pump suffers from slow turning-off speed and intrinsic speed mismatch between its NMOS discharging path and PMOS charging path, which incur obvious dynamic mismatch. To alleviate the above problems, this paper proposes an improved source-switching charge pump, which achieves much better dynamic matching while maintains the same static matching. The proposed charge pump outputs less current noise and lowers the reference spur obviously, which makes it quite preferable for high-performance phase-locked loops.

作者: Jinbao Lan Zhiqiang Gao Yuxin Wang Lintao Liu Ruzhang Li

作者单位: Sichuan Institute of Solid State Circuits, CETC, Chongqing 400000, China Harbin Institute of Technology, Harbin, 150001, China Sichuan Institute of Solid State Circuits, CETC,Chongqing 400000, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 448-450

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）