TESTING TECHNIQUE FOR PHASE JITTER IN COMMUNICATION SYSTEMS

摘要

A method and apparatus for measuring phase jitter by monitoring the period of a communication signal output of a communication system each one-half cycle. At each one-half cycle, the width of the signal output is compared with an average one-half period of the signal. Both digital and analog techniques are disclosed for displaying a peak-per-cycle phase jitter and a cumulative peak-to-peak phase jitter of the signal.