System and method for generating two effective frequencies using a single clock

摘要

A method and apparatus are disclosed for generating a second clock signal, having a second effective clock frequency, from a first clock signal, having a first effective clock frequency. Clock pulses of the first clock signal are counted to generate a count value. When the count value reaches a predetermined blanking value, a blanking signal is generated. The blanking signal blanks at least one clock pulse of the first clock signal. The process is repeated multiple times at a predetermined rate corresponding to the predetermined blanking value to generate the second clock signal.