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6.9 Measuring Waveform
6-105
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How to Operate Sampling Scope
Jitter analysis can measure different kinds of jitter at the same time.
Also, Eye Mask can be measured simultaneously.
Figure 6.9.3-2 Display Example of Jitter Analysis and Eye Mask Test
When Channel Math of Scope is Off, jitter can be analyzed without any
limit of pattern length.
When Channel Math of Scope is On, the jitter analysis can be performed
on the waveforms of pattern length up to 32768.
When Extinction Ratio Correction is set to On on the Amplitude, O/E
Dialog Box in Section 6.2.5, “*1” is displayed in red beside the corrected
measurement item.
When Fixed RJ is set to On on the Advanced tab of the Jitter Measure
dialog box (Figure 6.2.4-8), “*2” is displayed in red for RJ (d-d) and RJ
(rms).
When Sampling Mode is Advanced Jitter
Jitter analysis is executed for the waveform measured in Pulse mode of
Scope.
Jitter is measured for each point of bit rising and falling.
Therefore, TJ, Bathtub, RJ/PJ Histogram, DDJ Histogram, Composite
Histogram, Jitter Spectrum Display (PJ vs Frequency), and Jitter Display
for each bit (DDJ vs Bit or PDJ vs Bit) can be measured.