User guide

Peak-to-peak value of the total jitter. Calculated as the pulse period (unit
interval) minus the Phase Margin at the Total Jitter BER Threshold.
• Total Jitter Uncertainty
The maximum of the uncertainties of both slopes. Measured as the time
between a point with a BER greater than the specified Total Jitter BER
Threshold and the next point with a BER less than the specified Total Jitter
BER Threshold (left slope) and vice versa (right slope).
• Total Jitter BER Threshold
The BER threshold specified for the measurement.
• Optimal Sample Point Delay
The mean value of the left and right bathtub/Total Jitter BER Threshold
intersections.
Output Levels
Output Levels - Concepts
The Output Levels measurement allows you to characterize the behavior of the
output levels of a device under test (DUT). The sampling delay is fixed. The error
detector's decision threshold is automatically swept within a user-defined range.
A direct result is the determination of the optimum decision threshold level for
receiving data from the DUT with maximum confidence.
Advanced Analysis 6
Agilent J-BERT N4903B High-Performance Serial BERT 263