Title :
Experimental comparison of coupling effects on the performance of quadrature CMOS LC and RC oscillators
Author :
Allam, A. ; Filanovsky, I.M. ; Oliveira, Luís Bica ; Fernandes, Jorge R.
Author_Institution :
Univ. of Alberta, Edmonton
Abstract :
RC oscillators are known for their high phase noise compared with LC oscillators. However, by increasing coupling in RC oscillators one can obtain a quadrature oscillator with noise performance and quadrature error comparable with that of LC coupled oscillators. Measurements were performed on 5 GHz LC and RC quadrature oscillators built in 0.18 mum technology.
Keywords :
CMOS integrated circuits; coupled circuits; oscillators; phase noise; LC coupled oscillator; RC oscillator; coupling effects; frequency 5 GHz; noise performance; phase noise; quadrature CMOS LC oscillator; size 0.18 mum; CMOS technology; Capacitors; Coupling circuits; Energy consumption; Oscillators; Phase noise; Resistors; Transconductance; Trigger circuits; Voltage;
Conference_Titel :
Circuits and Systems, 2007. MWSCAS 2007. 50th Midwest Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
978-1-4244-1175-7
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2007.4488654
