User`s guide

Summary
This view shows measured jitter values. Each of these values relates to one of the other plots.
DCD+ISI - This is the pk-pk difference between the absolute minimum and maximum values on
DCD+ISI vs. edge position plot (y-axis).
PJpk-pk - The amplitude (in time) of the largest peak displayed on the FFT plot.
DJpk-pk - The sum of DCD+ISI and PJ pk-pk
RJ (1-sigma) with TailFit "off" - This value is from the Blackman-Tukey algorithm on the FFT that
gives a noise floor or RJ value. In the presence of periodic jitter.
RJ (1-sigma) with TailFit "on" - The RJ value comes from the average TailFit values on the 1-sigma
vs. UI view.
TJ (total) - Represents the result of the convolution of DJ and RJ. The TJ value is a bounded peak-to-
peak value derived from the bathtub curve. X-axis can display UI or time. Y-axis displays BER
or time
.
Section 4 - GigaView
©
WAVECREST Corporation 2005
142