articleTop 1% cited
Design issues in CMOS differential LC oscillators
IEEE Journal of Solid-State Circuits · 1999 · Vol. 34(5) · pp. 717–724
Ali Hajimiri✉(California Institute of Technology)T.H. Lee(Stanford University)
Abstract
An analysis of phase noise in differential cross-coupled inductance-capacitance (LC) oscillators is presented. The effect of tail current and tank power dissipation on the voltage amplitude is shown. Various noise sources in the complementary cross-coupled pair are identified, and their effect on phase noise is analyzed. The predictions are in good agreement with measurements over a large range of tail currents and supply voltages. A 1.8 GHz LC oscillator with a phase noise of -121 dBc/Hz at 600 kHz is demonstrated, dissipating 6 mW of power using on-chip spiral inductors.
Radio Frequency Integrated Circuit DesignAdvancements in PLL and VCO TechnologiesElectromagnetic Compatibility and Noise SuppressionPhase noisedBcElectronic oscillatorInductanceNoise (video)LC circuitCapacitanceVoltageDissipationCMOS
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References
A general theory of phase noise in electrical oscillators
IEEE Journal of Solid-State Circuits · 1998 · 2,354 citations
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