Title :
Power consumption vs. LO amplitude for CMOS Colpitts oscillators
Author_Institution :
Integrated Syst. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
In radio communication applications, the important specifications for a local oscillator are oscillation amplitude, phase-noise, and power consumption. Exact expressions for oscillation amplitude have been derived for Colpitts oscillators implemented with MOS transistors. Simple relationships relating amplitude to bias current and LC-tank duality factor, as well as the transistor´s aspect ratio, make the estimation of power consumption a straight forward exercise
Keywords :
CMOS analogue integrated circuits; phase noise; radiofrequency oscillators; CMOS Colpitts oscillator; LC-tank duality factor; LO amplitude; MOS transistor; aspect ratio; bias current; local oscillator; phase noise; power consumption; radio communication; CMOS technology; Circuits; Energy consumption; Laboratories; Local oscillators; MOSFETs; Phase noise; Radio communication; Radio frequency; Ring oscillators;
Conference_Titel :
Custom Integrated Circuits Conference, 1997., Proceedings of the IEEE 1997
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3669-0
DOI :
10.1109/CICC.1997.606624
