MONITORING AND CONTROL OF REFERENCE CLOCKS TO REDUCE BIT ERROR RATIO

摘要

A method for reducing a frequency error, including: applying a plurality of dither values to a local reference clock over a first time interval; sampling, during the first time interval and using the local reference clock, a first plurality of data values received over an asynchronous link, where the first plurality of data values are transmitted over the asynchronous link based on a remote reference clock; tracking a plurality of errors from sampling the first plurality of data values; and adjusting, based on the plurality of errors, a frequency of the local reference clock to reduce the frequency error between the local reference clock and the remote reference clock.

主权项

1. A method for reducing a frequency error, comprising:
applying a plurality of dither values to a local reference clock over a first time interval by modifying a divider; sampling, during the first time interval and using the local reference clock, a first plurality of data values received over an asynchronous link, wherein the first plurality of data values are transmitted over the asynchronous link based on a remote reference clock; tracking a plurality of bit errors from the sampling of the first plurality of data values; and adjusting, based on the plurality of bit errors, a frequency of the local reference clock to reduce the frequency error between the local reference clock and the remote reference clock.