1.5 Technical Terms
1-33
1
Outline
Jitter
Jitter is the variation in the time of the crossover point between the Eye
Diagram rising and falling parts of the waveform.
Jitter p-p (Jitter p-p): Full width of histogram in time direction
Jitter RMS (Jitter RMS): Standard deviation of histogram in time
direction
Figure 1.5-17 Jitter p-p and Jitter RMS
The jitter measured with the sampling oscilloscope is the combined values
of jitters with various occurrence factors. Actually occurred jitters consist
of various jitter elements.
The types of jitter elements which compose actual signals are explained
below.
Figure 1.5-18 Jitter Classification
Jitter RMS
Jitter p-p
TJ
DJ
RJ
DDJ
BUJ
DCD
ISI
PJ
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