We are using this part in our system.
I had a couple of questions for you:
- This isn't a big deal but we noticed that the A channel on many of your repeaters does not have high amplitude options with external strapping while the B channel doesn't. We use the A channel and didn't notice this and do not have I2C interface so we can dial up the amplitude. Why is this the case?
- I'd like your advice and expertise in looking at the two waveforms I'll upload. The input actually looks better than the output. I know that repeaters cannot clean things up as well as retimers but these look worse. I think/hope that we optimized the equalization among the available settings so I'm not sure why this would be. Maybe a contributor is that the output is at the beginning of a long transmission line while the input is at the end of a lossy channel. Does this make any any sense to you? Maybe this would be improved with some pre-emphasis? But the jitter looks much worse as well and it doesn't make sense that it would add so much jitter. NOTE that I'm told that all of the green in the input waveform is not there. That it was due to a shaky hand.
Thanks Very Much TI,
Ned
