Keysight Technologies N5991ST3A SATA, Руководство пользователя

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60 Keysight N5991 SATA Test Automation Software Platform User Guide
5 Receiver Tests
Rcvr Constant Parameter Stress Test
This test is available for all data rates.
Purpose and Method
The Rcvr Constant Parameter Stress Test examines the DUT with a
combination of jitter parameters where the Rcvr Jitter Tolerance Test or
one of the compliance tests raises a problem with the specific
combination.
This is a debugging test and very similar to the RSG-01 / RSG-02 /
RSG-03 Rx Jitter Tolerance Tests. The only difference is that only one FER
measurement is performed. The frequency of the SJ component can be
selected.
Connection Diagram
Refer to Figure 20 (M8020A) and Figure 21 (M8040A)
Parameters in Expert Mode
• Number of Allowed Frame Errors: The number of frame errors that are
allowed. The default value is '0'.
• Test Duration: The duration of the frame error measurement at each SJ
frequency.
Data Generator
• Differential Voltage: The calibrated inner eye height at TP2.
• Random Jitter (RJ): The amount of calibrated RJ added to the signal.
• SJ Frequency (SJ): The frequency of the sinusoidal jitter component.
• Sinusoidal Jitter (SJ): The amount of calibrated SJ added to the signal.
• Data Rate Deviation: A fixed deviation from the nominal data rate.
• SSC Deviation: Maximum amount of deviation from the nominal data
rate due to down-spread SSC modulation.
• SSC Frequency: The frequency of the SSC modulation.
Error Detector
• Show Additional Counters: Additional counters, such as the frame
counter, are shown in the result table.