Choosing the ISI Filter Size for EZJIT Plus Jitter Analysis
Application Notes
RJ/DJ analysis is a relatively new technique for analyzing timing jitter that separates a signal’s aggregate total jitter into random and deterministic components. This capability allows you to estimate peak-to-peak jitter values at very low bit-error-rate levels. Measuring these values directly is very time consuming. An added benefit of this technique is that it provides a basic diagnostic understanding of the jitter’s underlying cause.
EZJIT Plus is an optional jitter analysis package that runs on Infiniium real-time oscilloscopes from Keysight Technologies, Inc. and performs RJ/DJ analysis. EZJIT Plus uses wo different analysis techniques depending on whether you specify that the data pattern is periodic or non-periodic. Arbitrary Data mode is used to analyze signals with data patterns that are either not periodic or their pattern length is too long to be analyzed using the Periodic Data mode.