Patent Number: 8,798,222

Title: Methods and apparatus for digital linearization of an analog phase interpolator

Abstract: Methods and apparatus are provided for digital linearization of an analog phase interpolator. Up to 2.sup.N desired phase values are mapped to a corresponding M bit value, where M is greater than N. A corresponding M bit value is applied to the phase interpolator to obtain a desired one of the 2.sup.N desired phase values. A linearized phase interpolator is also provided that accounts for process, voltage, temperature or aging (PVTA) variations.

Inventors: Mobin; Mohammad S. (Orefield, PA), Sheets; Gregory W. (Bangor, PA), Smith; Lane A. (Easton, PA), Ziemer; Craig B. (Fleetwood, PA)

Assignee: Agere Systems LLC

International Classification: H04L 7/00 (20060101)

Expiration Date: 8/05/12018