A low power PFD and dual mode CP with small current mismatch for PLL application
Abstract — A high speed Phase-Frequency Detector (PFD) and Charge Pump (CP) are implemented using 0.13μm CMOS process with 1.2 V supply. The PFD is implemented with TSPC (True Single-Phase Clock) and positive edge triggered D flipflop. Its polarity can be changed by setting the port. The dead zone problem is solved using an additional reset time. A single charge pump is implemented with two compensators. Dual mode CP design makes the charge pump much more flexible in applications. The current mismatch for the two modes is below 4.9% within the voltage range of from 0.2 to 1.0 V.
PLL PFD CP
Cao Yu Minsu Kim Hyungchul Kim Youngoo Yang
MCS Lab, school of information and communication, SungKyunKwan UniversitySuwon, South KOREA MCS Lab, school of information and communication, SungKyunKwan University Suwon, South KOREA
国际会议
哈尔滨
英文
161-164
2011-01-18(万方平台首次上网日期,不代表论文的发表时间)