FREQUENCY BASED BIAS VOLTAGE SCALING FOR PHASE LOCKED LOOPS

A phase locked loop system includes bias voltage adjustment circuitry and a voltage regulator that outputs a smoothed core voltage to an oscillator. The bias voltage adjustment circuitry is configured to compute a scaled bias voltage based at least on a target frequency for the oscillator. The volta...

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Bibliographic Details
Main Authors GUSTEDT, Thomas, WICPALEK, Christian, ROTHMEIER, Andreas, DIETL-STEINMAURER, Herwig
Format Patent
LanguageEnglish
French
German
Published 03.01.2018
Subjects
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Summary:A phase locked loop system includes bias voltage adjustment circuitry and a voltage regulator that outputs a smoothed core voltage to an oscillator. The bias voltage adjustment circuitry is configured to compute a scaled bias voltage based at least on a target frequency for the oscillator. The voltage regulator is configured to input i) the scaled bias voltage and ii) a selected core voltage that is selected based on the target operating frequency of the oscillator and generate the smoothed core voltage for output to the oscillator
Bibliography:Application Number: EP20170174107