Keysight Technologies N5991ST3A SATA, Руководство пользователя

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Keysight N5991 SATA Test Automation Software Platform User Guide 53
Receiver Tests 5
RSG-05 Receiver Stress Test at +350 ppm (for 1.5 GBit/s)
Purpose and Method
This is the official receiver data rate deviation tolerance test that has to be
passed in order to obtain SATA certification. For M8020A JBERT, this test
is always performed at the data rate 1.5 GBit/s even if the DUT supports
the higher data rates. For M8040A JBERT, this test is performed at 3.0
GBit/s (since 1.5 GBit/s data rate is not supported by this instrument).
A data rate deviation of +350 ppm is applied to the data signal. The UTD
specifies that this test must run for at least 18 successive iterations of the
Framed COMP pattern, which is slightly more than 1 ms. The test runs for
a whole second.
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.