Design of a CMOS Adaptive Charge Pump with Dynamic Current Matching

作     者：ZHANG Tao ZOU Xuecheng ZHAO Guangzhou SHEN Xubang 

作者机构：Institute of Pattern Recognition and Artifieal Intelligence Huazhong University of Science and Technology Wuhan 430074 Hubei Chinas Department of Electronic Science and Technology Huazhong University of Science and Tchnology Wuhan 430074 Hubei China Xi＇an Microelectronic Technology Institute Xi＇an 710054 Shaanxi China 

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina(F60135020) 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2006年第11卷第2期

页      码：405-408页

摘      要：A novel structure for a charge pump circuit is proposed, in which the charge-pump （CP） current can adaptively regulated according to phase-locked loops （PLL） frequency synthesis demand. The current follow technology is used to make perfect current matching characteristics, and the two differential inverters are implanted to increase the speed of charge pump and decrease output spur due to theory of low voltage difference signal. Simulation results, with 1st silicon 0. 25μm 2. 5 V complementary metal-oxide-semiconductor （CMOS） mixed-signal process, show the good current matching characteristics regardless of the charge pump output voltages.

主 题 词：phase-locked loop charge pump phase offset phase frequency detector current matching low voltagedifference signal 

学科分类：08[工学] 081201[081201] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1007/BF02832132

馆 藏 号：203131923...