Title :
A 3.6 GHz double cross-coupled multivibrator VCO with 1.6-GHz tuning
Author :
Väänänen, Paavo ; Metsänvirta, Mikko ; Tchamov, Nikolay T.
Author_Institution :
Nokia Mobile Phones, Tampere, Finland
fDate :
8/1/2001 12:00:00 AM
Abstract :
This brief presents a fully monolithic voltage-controlled oscillator (VCO) based on double cross-coupled multivibrator architecture with a speed enhancing RL-load designed and implemented on a standard 0.35-μm BiCMOS process. The tuning range achieved is greater than 1.6 GHz with a center frequency of 3.6 GHz; and the measured phase noise is -98.2 dBc/Hz at an offset frequency of 600 kHz. The VCO draws 17.5 mA from a 2.4 V supply
Keywords :
BiCMOS analogue integrated circuits; circuit tuning; multivibrators; phase noise; voltage-controlled oscillators; 0.35 micron; 17.5 mA; 2.4 V; 3.6 GHz; BiCMOS process; RL load; double cross-coupled multivibrator; monolithic voltage controlled oscillator; phase noise; tuning range; Bandwidth; BiCMOS integrated circuits; Capacitance; Frequency; Inductors; Noise measurement; Phase measurement; Phase noise; Tuning; Voltage-controlled oscillators;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
