Title :
Design of cross coupled CMOS unsaturated ring oscillators
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
Design is presented for lowering phase noise in CMOS unsaturated ring oscillator having cross coupled pair load. It is verified on simulated circuit examples using 0.18μm CMOS technology. The procedure involves methodically varying circuit parameters such as W/L ratios and biasing to reduce phase noise from cycle to cycle correlation, while keeping a constant oscillation frequency and power dissipation.
Keywords :
CMOS integrated circuits; oscillators; CMOS technology; W/L ratios; circuit parameters; constant oscillation frequency; cross coupled CMOS unsaturated ring oscillators; phase noise; power dissipation; size 0.18 mum;
Conference_Titel :
Circuits and Systems (MWSCAS), 2011 IEEE 54th International Midwest Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-61284-856-3
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2011.6026541
