Table of Contents
Advertisement
6
Advanced Analysis
Explanation of the Result Display
N O T E
Explanation of the Numerical
262
RJ/DJ values can be calculated in this case, they are not shown because
confidence in the results is too low.
Explanation of the Fast Total Jitter Measurement Results
The Fast Total Jitter measurement provides both graphical and numerical results:
The example below shows a copied result, and the display of measured points was
enabled.
The results of the recent measurement are disabled, because they refer to a
standard "bathtub" measurement that provides many more results. By actuating
the Show indicator, you can inspect both alternatively.
The result graph shows you the points in time that have been investigated and
whether the actual BER at these points was higher or lower than the BER threshold
specified for the measurement. The grey area in the middle indicates the
uncertainty band (see
246).
The test will fail, if the BER floor is not well below the BER threshold specified for
the measurement.
The Fast Total Jitter measurement result parameters are summarized in the
following list:
Results
•
Phase Margin
The period of time where the bit error rate is lower than the Total Jitter BER
Threshold.
•
Total Jitter Peak-Peak
"Explanation of the Fast Total Jitter Measurement" on page
Agilent J-BERT N4903B High-Performance Serial BERT
Advertisement
Table of Contents
