DocumentCode
3305789
Title
A Mismatch Compensation Circuit for CMOS Quadrature VCO Phase Error
Author
Lee, Han-Jian ; Chen, Che-Sheng ; Wuen, Wen-Shen ; Wen, Kuei-Ann
Author_Institution
NCTU, HinChu
fYear
2007
fDate
July 30 2007-Aug. 2 2007
Firstpage
497
Lastpage
500
Abstract
This paper presents an analysis of phase errors in LC quadrature VCO with a common-mode model. A mismatch compensation circuit is proposed to alleviate phase errors due to common-mode transconductance mismatch. With the compensation circuit, quardature phase errors and image rejection ration rate (IRR) are improved about 1.5 degrees and 4.7 dB, respectively. The compensation circuit consumes 1.1 mW.
Keywords
CMOS integrated circuits; compensation; errors; semiconductor device models; voltage-controlled oscillators; CMOS quadrature VCO; common-mode transconductance mismatch; image rejection ration rate; mismatch compensation circuit; phase error; Circuits; Error analysis; Error correction; Frequency; Impedance; OFDM; Phase noise; Power harmonic filters; Transconductance; Voltage-controlled oscillators; Compensation; Quadrature phase error; Voltage controlled oscillators;
fLanguage
English
Publisher
ieee
Conference_Titel
Signals, Systems and Electronics, 2007. ISSSE '07. International Symposium on
Conference_Location
Montreal, Que.
Print_ISBN
1-4244-1448-2
Electronic_ISBN
1-4244-1449-0
Type
conf
DOI
10.1109/ISSSE.2007.4294522
Filename
4294522
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