Apparatus and method for adaptive common mode noise decomposition and tuning

摘要

Described is an apparatus which comprises: a pre-driver coupled to a transmitter, the transmitter having a differential output; and a tuning circuit operable to couple to the differential output to tune the pre-driver of the transmitter according to a common mode noise signature of a common mode signal derived from the differential output.

主权项

1. An apparatus comprising:
a pre-driver to receive input data and to generate one or more outputs; a transmitter to receive the one or more outputs from the pre-driver, the transmitter having first and second outputs for coupling to a transmission media; and a tuning circuit coupled to the transmitter, wherein the tuning circuit is operable to:
couple itself to the first and second outputs of the transmitter;analyze signals on the first and second outputs of the transmitter; andadjust one or more circuits in the pre-driver according to the analysis.