Title :
A high-performance CMOS charge pump for PLLs
Author :
Pan, Jianbin ; Zhao, Yuanfu ; Liang, Xin
Author_Institution :
Technol. Inst., Beijing Microelectron., Beijing, China
Abstract :
In conventional CMOS charge pump circuits, there are some non-ideal effects such as the clock feedthrough, current mismatch and charge sharing which result in a phase offset in phase-locked loop circuits. This paper presents a new charge pump to reduce the jitter. The proposed and conventional charge pumps are simulated and compared. The circuit is implemented using a 0.35¿m mix-signal CMOS process. And the simulation result is obtained by SPECTRES.
Keywords :
CMOS integrated circuits; charge pump circuits; integrated circuit modelling; mixed analogue-digital integrated circuits; phase locked loops; PLL; SPECTRES; high-performance CMOS charge pump; jitter reduction; mix-signal CMOS process; non-ideal effects; Charge pumps; Meteorology; Oceans; Remotely operated vehicles; Sampling methods; Sea measurements; Sea surface; Storms; Temperature sensors; Tropical cyclones; Charge pump; Phase-Locked Loops;
Conference_Titel :
Microelectronics (ICM), 2009 International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-5814-1
DOI :
10.1109/ICM.2009.5418578
