Method and apparatus for adjusting phase-lock-loop parameters

摘要

A method and apparatus for adjusting the parameters of a PLL in a communication system. The method measures the rate of transmission of clock reference information by measuring the time of arrival of successive clock references or the difference of the clock reference values. The method applies the measured transmission rate to a plurality of predefined transmission rate ranges to acquire the proper gain factor values. These gain factor values are used to control the responsiveness of the PLL to new clock reference information.