A power-optimized widely-tunable 5-GHz monolithic VCO in a digital SOI CMOS technology. On high resistivity substrate
- 22 December 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 434-439
- https://doi.org/10.1109/lpe.2003.1231944
Abstract
This paper describes the design and technology optimization of power-efficient monolithic VCOs with wide tuning range. Four 5-GHz LC-tank VCOs were fabricated in a 0.12-/spl mu/m SOI CMOS technology that was not enhanced for RF applications. High and regular resistivity substrates were used, as were single-layer and multiple-layer copper inductors. Using a new figure-of-merit (FOM/sub T/) that encompasses power dissipation, phase noise and tuning range, our best VCO has an FOM/sub T/ of -189 dBc/Hz. The measured frequency tuning range is 22 % and the phase noise is 126 dBc/Hz at 1 MHz offset for 4.5-GHz. Oscillation was achieved at 5.4-GHz at a minimum power consumption of 500 /spl mu/W.Keywords
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