公开(公告)号：WO2021126309A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/038947

申请日：2020-06-22

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： WILLINGHAM, Mike

IPC: H03L7/099 ,  H03L7/16 ,  G06F1/02 ,  H03K5/135 ,  G06F1/022 ,  H03L7/081 ,  H03L7/104

Abstract: A circuit for correcting phase interpolator rollover integral non-linearity errors includes a rollover detector circuit for detecting when an interpolator rollover event of a phase integer portion of a phase interpolator has occurred, and a correction circuit that adds a signed predistortion correction to the VCO clock cycle fraction value of the phase interpolator when the rollover detector circuit has detected the interpolator rollover event.