公开(公告)号：US11133793B1

公开(公告)日：2021-09-28

申请号：US17108941

申请日：2020-12-01

Applicant: Cadence Design Systems, Inc.

Inventor： Scott David Huss ,  Loren B. Reiss ,  Christopher George Moscone ,  Kelvin E. McCollough

IPC: H03K5/135 ,  H03M9/00 ,  H03K5/131 ,  H03K5/00

Abstract: Various embodiments provide for phase interpolators with phase adjusters to provide step resolution, which can be used with a circuit such as a data serializer/deserializer circuit. In particular, for some embodiments, a phase interpolator is coupled to a phase adjuster, where the combination of the phase interpolator and the phase adjuster is configured to interpolate between phases in phase adjustment steps at a phase adjustment step resolution. For such embodiments, the phase adjustment step resolution of the steps is achieved by controlling the phase interpolator and the phase adjuster.