DS250DF410: Bypass mode of DS250DF410

Bonnie Chen

Part Number: DS250DF410

Hi team,

Does retimer still do some enhance on signal when "bypass mode" was been enable?

customer face problem that when they reduce the amplitude of MAC TX, but the output of the retimer no amplitude no change. the only change is jitter.

over 4 years ago

0 Nasser Mohammadi over 4 years ago

TI__Guru* 88905 points

Hi Bonnie,

In CDR bypass mode, you can use manual CTLE settings - if needed.

Also, please note amplitude is independent of the MAC TX. Please refer to the DS250DF410 programming guide for changing DS250DF410 output amplitude and FIR settings.

Regards,, Nasser

0 Jam Tsai over 4 years ago in reply to Nasser Mohammadi

Prodigy 10 points

Hi Nasser

Do we have Auto-negotiation function when retimer was setting on 'bypass' mode?

I know AN doesn't support when retimer working on normal mode.

Jam

0 Nasser Mohammadi over 4 years ago in reply to Jam Tsai

TI__Guru* 88905 points

Hi Tsai,

DS250DF410 doesn't have intelligence to do auto-negotiation.

Please clarify or let us know if there is further question.

Regards,, Nasser

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DS250DF410: Bypass mode of DS250DF410