AN0001: Understanding Jitter
Because clock jitter is nothing more than the time variation between the edge of a clock signal and its ideal location in time, most engineers can intuitively relate to the basic definition of jitter. However, the effect of jitter on the performance of a system is largely dependent on the functional requirements of the application. A more detailed understanding of the makeup of jitter is important in accessing how jitter degrades system performance. To help the system designer, several different methods for specifying and measuring jitter have been developed.