Abstract
A design strategy for the realization of low-phase-noise VCOs is presented. The possible realizations of integrated inductors are discussed, with emphasis on bondwire inductors. A general formula for the phase noise in LC-tuned oscillators is derived, based on the concepts of effective resistance and capacitance. A trade-off between noise and power is possible with the newly developed enhanced LC-tanks. An oscillator based on these principles was implemented in a 0.7-μm CMOS technology. Measured phase noise is-85 dBc/Hz at 10 kHz from the 1.8-GHz carrier.
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© 1996 Springer Science+Business Media Dordrecht
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Craninckx, J., Steyaert, M. (1996). Low-Phase-Noise Gigahertz Voltage-Controlled Oscillators in CMOS. In: Huijsing, J.H., van de Plassche, R.J., Sansen, W.M.C. (eds) Analog Circuit Design. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-2462-2_17
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DOI: https://doi.org/10.1007/978-1-4757-2462-2_17
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