A 0.009–1.4-GHz Frequency Synthesizer With Suppressed Transients During VCO Band Switching

Jerry Lam,Tom A. D. Riley,Norman M. Filiol,John W. M. Rogers,Calvin Plett

IEEE Transactions on Circuits and Systems II: Express Briefs（2015）

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摘要

This brief presents a 0.009-1.4-GHz frequency synthesizer that is able to compensate for changes in the frequency tuning range, due to temperature variations, by switching voltage-controlled oscillator (VCO) bands with minimal phase and frequency errors, without cycle slipping and without introducing any phase offsets. This is accomplished by a subthreshold capacitor bank switching circuit that ca...

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关键词

Switching circuits,Switches,Phase locked loops,Voltage-controlled oscillators,Capacitors,Frequency synthesizers,Transistors

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