CALIBRATING A PHASE INTERPOLATOR BY AMPLIFYING TIMING DIFFERENCES

Systems and methods related to calibrating a phase interpolator by amplifying timing differences are described. An example system includes a calibration stage configured to output a calibration code for a phase interpolator. The system further includes control logic configured to: (1) at least parti...

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Bibliographic Details
Main Authors LU, Ping, CHEN, Minhan
Format Patent
LanguageEnglish
French
German
Published 06.09.2023
Subjects
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Summary:Systems and methods related to calibrating a phase interpolator by amplifying timing differences are described. An example system includes a calibration stage configured to output a calibration code for a phase interpolator. The system further includes control logic configured to: (1) at least partially discharge a first pre-charged capacitive load in response to a signal output by the phase interpolator based on the calibration code, and (2) at least partially discharge a second pre-charged capacitive load in response to a reference signal associated with the phase interpolator. The system further includes a feedback path configured to provide feedback to the calibration stage to allow for a modification of the calibration code, where the feedback is dependent on a first voltage provided by the first pre-charged capacitive load and a second voltage provided by the second pre-charged capacitive load.
Bibliography:Application Number: EP20210758232