Title
A Constant-Current-Controlled Class-C Voltage-Controlled Oscillator Using Self-Adjusting Replica Bias Circuit
Abstract
This paper presents a constant-current-controlled class-C VCO using a self-adjusting replica bias circuit. The proposed class-C VCO is more suitable in real-life applications as it can maintain constant current which is more robust in phase noise performance over variation of gate bias of cross-coupled pair comparing to a traditional approach without amplitude modulation issue. The proposed VCO is implemented in 180 nm CMOS process. It achieves a tuning range of 4.8-4.9 GHz with a phase noise of -121 dBc/Hz at 1MHz offset. The power consumption of the core oscillators is 4.8mW and an FoM of -189 dBc/Hz is achieved.
Year
DOI
Venue
2015
10.1587/transele.E98.C.471
IEICE TRANSACTIONS ON ELECTRONICS
Keywords
Field
DocType
low power, low phase noise, class-C VCO, start-up, CMOS, replica-bias circuit
Replica,Start up,Constant current,CMOS,Electronic engineering,Voltage-controlled oscillator,Engineering,Electrical engineering
Journal
Volume
Issue
ISSN
E98C
6
1745-1353
Citations 
PageRank 
References 
0
0.34
8
Authors
4
Name
Order
Citations
PageRank
Teerachot Siriburanon114921.47
Wei Deng213517.45
Kenichi Okada3497100.11
Akira Matsuzawa446588.10