DocumentCode
3581583
Title
Design of linear CMOS VCO based on cross-coupled pair topology with double tuning technique
Author
Hsu, Meng-Ting ; Lee, Yao-Yen ; Jhong, Ruei-Wun
Author_Institution
Microwave Communication and Radio Frequency Integrated Circuit Lab, Department and Institute of Electronic Engineering National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, 64002, Taiwan, R.O.C.
fYear
2014
Firstpage
962
Lastpage
964
Abstract
A low phase noise CMOS LC voltage controlled oscillator (VCO) with small VCO gain (KVCO ) is presented. In order to get small KVCO and step variation across different sub-bands, we use the two sets of varactor multi-band approach to achieve low KVCO . The core power dissipation is 2.786 mW. The VCO gain of the uppermost sub-band is around 223 MHz/V and lowermost sub-band is around 184 MHz/V with 19.62% the tuning range, while the linearity is 15.2%. Under a 1.4 V supply, the VCO exhibits phase noise of −122.73 dBc/Hz at 1 MHz offset from the carrier. The Figure-of-merit (FOM) is −192.49 dBc/Hz.
Keywords
Abstracts; CMOS integrated circuits; CMOS technology; Decision support systems; Topology; Tuning; Voltage-controlled oscillators; KVCO ; LC resonator; Q-enhancement; phase noise; voltage controlled oscillator;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference (APMC), 2014 Asia-Pacific
Type
conf
Filename
7067592
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