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DS125BR401: 10GbE-SR

Mia Ma
Intellectual 2305 points
Part Number: DS125BR401
Other Parts Discussed in Thread: DS110DF410, DS100RT410, DS100DF410

Hi team,

I am not familiar with ethernet protocol, here is an item want to know your comments.

if our part DS125BR401 could support 10Gbe-SR protocol?

Thanks

Best regards 

Mia Ma

  • 0
    TI__Mastermind 23497 points

    Hi Mia,

    It would be possible for our redriver to support 10G-SR, but in general it is challenging for redrivers to meet the eye mask requirements for optical communication.  In order to meet eye mask requirements with a redriver, module channel insertion loss should be within 10dB and the host chip random jitter needs to be reasonable.

    If there are concerns about meeting the eye mask requirements, a retimer might be more appropriate.

    Thanks,
    Drew

  • 0 in reply to Drew Miller1
    TI__Intellectual 2305 points

    Hi Miller,

    Thanks for your quick response.

    So if there any suitable part you would be recommended here could achieve a good performance? the following items are my application needed:

    1. 10Gbe-SR
    2. Retimer integrated
    3. 3.3V power supply
    4. 4-Lane Repeater

    Thanks.

    Best regards

    Mia Ma

  • 0 in reply to Mia Ma
    TI__Mastermind 23497 points

    Hi Mia,

    Unfortunately, our retimers run off a 2.5V supply.  You could consider adding an LDO or buck module to step 3.3V to 2.5V, but I understand that this does add cost and complexity.

    The retimers I would recommend if a 2.5V supply is acceptable are: DS100RT410, DS100DF410, DS110DF410.

    Thanks,
    Drew

  • 0 in reply to Drew Miller1
    TI__Intellectual 2305 points

    Hi Miller

    Got it and thanks

    Regards

    Mia Ma