公开(公告)号：US10237000B1

公开(公告)日：2019-03-19

申请号：US15973724

申请日：2018-05-08

Applicant: NXP B.V.

Inventor： Martin Buchsbaum ,  Erich Merlin ,  Manuel Markus Figer

IPC: H04L7/00 ,  H04L25/00 ,  H04L25/40 ,  H04B17/12 ,  H04B5/00 ,  H04L7/033 ,  H04B5/02 ,  G06Q20/32

Abstract: A method for compensating phase shift is provided. The method includes sweeping a transmitter (TX) clock frequency over a frequency range and sampling resistance values at a receiver (RX) circuit while sweeping the TX clock frequency. A first frequency in the frequency range is determined which corresponds to a maximum resistance value sampled at the RX circuit. Using a look-up table (LUT), a phase adjust value is determined based on the first frequency. A phase of the TX clock is adjusted based on the phase adjust value.