User`s guide

Histogram View
The Histogram View shows the results of a Period Jitter histogram. The Period samples are made from the
rising edge to the rising edge of a single period (using Timing Engine). The Period Mean, 1-Sigma and Pk-Pk
relate to the displayed histogram. Period Hits is the number of samples in the histogram.
Pulse Width+ and Pulse Width- are also calculated from a histogram of measurements—though, this
histogram is not displayed. Duty cycle and Frequency can then be calculated from these measurements.
The values for RJ (Random Jitter), DJ (Deterministic Jitter) and TJ (Total Jitter) are calculated using TailFit.
TailFit determines an accurate RJ when DJ is present. TJ is a predicted Pk-Pk value based on the RJ and DJ
measured and is bounded at some level of probability or some elapsed time. The default for this is 1e-12.
Section 4 - GigaView © WAVECREST Corporation 2005
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