Hi,I got the following questions from one of my customers,that would like to measure eye diagram at receive side:
-should this be done at pins 38-39 (CMLOUP,CMLOUTN) after internal equalization filter, where the back-channel signal is removed?
-is there a suggested procedure to do this, as we did for PIXEL CLOCK jitter in: “130517DS90UHB925 Jitter Measurement Criteria_5_17_13, DS90UH/B925 Jitter Measurement Criteria (Rev.4), Texas Instruments”
-CMLOUTP/N are differential outputs; do you suggest to do measurements using oscilloscope differential probes(even if RIN+/RIN- are single ended with RIN- to 50 Ohms)
- Jitter measurement on this device can be done with a similar procedure as in above document?
Thanks
Umberto
