DocumentCode
2480544
Title
A low mismatch symmetric charge pump for the application in PLLs
Author
Zhang, Ye ; Zimmermann, Niklas ; Wunderlich, Ralf ; Heinen, Stefan
Author_Institution
Dept. of Integrated Analog Circuits & RF Syst., RWTH Aachen Univ., Aachen, Germany
fYear
2011
fDate
3-7 July 2011
Firstpage
201
Lastpage
204
Abstract
This paper proposes a charge pump with a symmetric structure that minimizes mismatch between charge and discharge currents and phase offset. The origins and influences of charge pump mismatch are discussed and theoretically analyzed. Subsequently the simulation results of the proposed charge pump are compared with conventional structures to show its benefits.
Keywords
charge pump circuits; phase locked loops; PLL; charge currents; charge pump mismatch; discharge currents; low-mismatch symmetric charge pump; phase offset; symmetric structure; Charge pumps; Discharges; Phase frequency detector; Phase locked loops; Switches; Transistors; Voltage-controlled oscillators;
fLanguage
English
Publisher
ieee
Conference_Titel
Ph.D. Research in Microelectronics and Electronics (PRIME), 2011 7th Conference on
Conference_Location
Trento
Print_ISBN
978-1-4244-9138-4
Electronic_ISBN
978-1-4244-9136-0
Type
conf
DOI
10.1109/PRIME.2011.5966252
Filename
5966252
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