Title :
A 1.3 GHz CMOS VCO with 28% frequency tuning
Author :
Svelto, F. ; Deantoni, S. ; Castello, R.
Author_Institution :
Dipt. di Ingegneria, Univ. di Bergamo, Dalmine, Italy
Abstract :
A 2 V, 6 mA, 1.3 GHz LC-tank VCO, realized in a digital CMOS process, is presented. The tank is made of a metal-oxide-silicon varactor and a series connection of a bondwire and a spiral inductor. This solution enables one to tune all component variations, while gain is maintained constant within ±20% of the nominal value. The measured phase noise at 600 kHz from 1.3 GHz carrier is -119 dbc/Hz
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; inductors; phase noise; voltage-controlled oscillators; 1.3 GHz; 2 V; 6 mA; CMOS; LC-tank VCO; bondwire; component variations; frequency tuning; phase noise; spiral inductor; Bonding; CMOS process; Frequency; Inductors; Noise measurement; Phase measurement; Spirals; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5443-5
DOI :
10.1109/CICC.1999.777363
