DS90UB960-Q1: eye height and width in Figure 11

peiyq

Hi,

We are veryfy eye diagram,could you please help clarify what's the eye height and width in Figure 11. Typical 4 Gbps Forward Channel Monitor Loop Through Waveform (CMLOUT) in DS90UB960-Q1 datasheet？

It was not clear to us.

over 4 years ago

0 peiyq over 4 years ago

Expert 1400 points

0 peiyq over 4 years ago in reply to peiyq

Expert 1400 points

Hi,

Could you please check if this eye diagram was good to use?

How we could improve its quality?

B&R

Yuanqing

+1 Nicholas Darash over 4 years ago in reply to peiyq

TI__Mastermind 18755 points

Hi Yuanqing,

Did you mean to share an eye diagram that you captured? Can you send it again, I can't see it?

Regards,

Nick

0 peiyq over 4 years ago in reply to Nicholas Darash

Expert 1400 points

0 Nicholas Darash over 4 years ago in reply to peiyq

TI__Mastermind 18755 points

Hi Yuanqing,

It looks like you just sharing a waveform of the high-speed signal. Do you have some high-speed analysis software like DPOJET to analyze the signal eye?

Are you just trying to verify the link quality? If so, you may be able to look at the MAP tool which can be found on the 960 product page. Or you could try to get an S-Parameter measurement of the entire channel.

Regards,

Nick

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DS90UB960-Q1: eye height and width in Figure 11