Teledyne LeCroy QPHY-SATA - Manual (Page 40)

40
915745 Rev G
PHY RSG Requirements
All tests in this section require a PeRT
3
.
Calibration – Gen1 (1.5Gb/s), Gen2 (3.0Gb/s) and Gen3 (6.0Gb/s)
Before running a receiver test the output of the PeRT
3
must be calibrated appropriately so that it adds the correct
amount of jitter and produces the correct eye opening at the end of the channel. This must be done separately for
each speed. In addition, eSATA products require a different calibration for Gen1m and Gen2m. The calibration
files are saved on the oscilloscope in D:\Applications\SATA. Once the calibration is done a single time it can be
reused again later. It is recommended to rerun the calibration periodically to ensure it remains correct.
There are 2 calibration points one before the ISI inducing channel (TP1) and one after it (TP2). Rise and fall
times, Rj and Sj calibrations are done at TP1 and Tj and amplitude calibration is done at TP2.
Figure 19 Calibration Setup at TP2 for Gen2 (3.0Gb/s)
RSG-01, RSG-02 and RSG-03 Receiver Jitter Tolerance
These tests run a receiver jitter tolerance test with the product in loopback. There is a separate test at each
speed. The Framed COMP (2 ALIGN) pattern is used. Sinusoidal jitter is added at 5MHz, 10MHz, 33MHz and
62MHz. The test runs for the amount of the time specified in the Test Time variable or until 1000 frame errors are
seen.
RSG-05 – Receiver Stress Test +350ppm
This test is a receiver jitter tolerance test at 1.5Gb/s like RSG-01 except that the data rate used is 1.5Gb/s
+350ppm.
RSG-06 – Receiver Stress Test with SSC
This test is a receiver jitter tolerance test at 1.5Gb/s like RSG-01 except that it uses spread spectrum clocking
(SSC) to create additional stress on the receiver.