PHASE LOCKED LOOP HAVING A RETIMINNG PART FOR THE REMOVAL OF JITTER IN A PROGRAMMABLE FREQUENCY DIVIDER

摘要

The invention relates to a phase locked loop (PLL), more particularly to a PLL having a retiming part for the removal of jitter in a programmable frequency divider.  An advantage of the invention is that in-band noises caused by the output jitter of a programmable frequency divider which divides the phase of an output signal from a voltage controlled oscillator can be removed by retiming an output of the divider and transmitting to a phase detector for comparison.