公开(公告)号：US11323123B2

公开(公告)日：2022-05-03

申请号：US16827691

申请日：2020-03-23

Applicant: Microchip Technology Inc.

Inventor： Mike Willingham

IPC: H03L7/099 ,  H03L7/081 ,  H03L7/10 ,  H03L7/197

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

公开(公告)号：US20210194488A1

公开(公告)日：2021-06-24

申请号：US16827691

申请日：2020-03-23

Applicant: Microchip Technology Inc.

Inventor： Mike Willingham

IPC: H03L7/081 ,  H03L7/10

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.