OPEN-LOOP VOLTAGE REGULATION AND DRIFT COMPENSATION FOR DIGITALLY CONTROLLED OSCILLATOR (DCO)

Embodiments include apparatuses, methods, and systems for open-loop voltage regulation and drift compensation for a digitally controlled oscillator (DCO). in embodiments, a communication circuit may include a DCO, an open-loop voltage regulator, and a calibration circuit. The open-loop voltage regul...

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Bibliographic Details
Main Authors TONG GULUKE, GOWDER SUJATHA B, LI SHENGGAO, SPAGNA FULVIO
Format Patent
LanguageEnglish
Published 31.03.2016
Subjects
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:Embodiments include apparatuses, methods, and systems for open-loop voltage regulation and drift compensation for a digitally controlled oscillator (DCO). in embodiments, a communication circuit may include a DCO, an open-loop voltage regulator, and a calibration circuit. The open-loop voltage regulator may receive a calibration voltage and may generate a regulated voltage. The regulated voltage may be passed to the DCO. During a calibration mode, the calibration circuit may compare the regulated voltage to a reference voltage and adjust the calibration voltage based on the comparison to provide the regulated voltage with a target value. During a monitoring mode, the calibration circuit may receive a tuning code that is used to tune the DCO and further adjust the calibration voltage based on a value of the tuning code.
Bibliography:Application Number: US201414498728