论文信息 - A comparative study of CMOS-based quadrature integrated LC VCO topologies

A comparative study of CMOS-based quadrature integrated LC VCO topologies

Topologies comparison of a 1 GHz quadrature voltage controlled oscillator, VCO, based on simulation results is presented. VCO circuits are simulated using 0.25 micron CMOS process from 2.5 V supply. The comparison is introduced from two different perspectives: constant VCO DC power and constant output swing. The main differences between different topologies seeking same targeted VCO specifications are shown.

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