User`s guide

1-Sigma
This is a plot showing the accumulation of jitter over increasing numbers of Unit Intervals (UI) This view
shows the 1-sigma values for the histograms of each binned UI measurement. Allows the user to see jitter
accumulation. Modulation present shows up as a periodic variation of 1-sigma values. This information is
used by the FFT view to show the actual frequency components and amplitude of the modulation. When
there is a PLL imbedded in the device transmitting the data, a characteristic curve is often present. Refer to
the High Frequency Modulation Theory.
Section 4 - GigaView © WAVECREST Corporation 2005
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