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  • TI Thinks Resolved

DS100DF410: increase the 1GbE MDI driving ability

Guru 11785 points

Replies: 6

Views: 90

Part Number: DS100DF410

Hi Sirs,

Sorry to bother you.

We would like to know if we want to increase the 1GbE MDI driving ability, could we use the DS100DF410SQE?

If no have others solution can share?

Thanks!!

  • Hi Sirs,

    Sorry for pushed, any update on here?

    Thanks!!

  • In reply to Shu-Cheng LIN:

    Hi,

    See the programming guide.  www.ti.com/.../snla323.pdf

    Page 20 Section 3.26 has a programming secquence for RAW mode.

    Regards,

    Lee

  • In reply to Lee Sledjeski:

    Hi Sirs,

    Thanks for your reply.

    So just let me confirm again, DS100DF410 could increase the 1GbE MDI driving ability, right?

     

  • In reply to Shu-Cheng LIN:

    Hi,

    The DS100DF410 could provide an increase in the overall MDI interface.  The could be achieved by using the Rx equalization.  This equalization is optimized for 10 Gbps signals, but it will still provide some benefit to the lower speed 1 GbE signals.

    Regards,

    Lee

  • In reply to Lee Sledjeski:

    Hi Sirs,

    Thanks for your reply.

    Actually MDI signal are bi-direction like USB D+/D-, but 410 looks is uni-direct.

    So how do we connect if we want to use 410.

    By the way, our phy is use Intel I210, actually we discussed with INTEL member and they suggest to add TI LAN mux TS3L500AE.

    But we don't see any buffer or re-driver function on TS3L500AE, Could you help to check it?

  • In reply to Shu-Cheng LIN:

    Hi,

    Sorry you are correct - the MDI interface cannot support a retimer or redriver function due to the bi-directional signals.  We often find repeaters used for the SGMII interface.

    I currently do not see a solution for this MDI application.  The TS3L500AE is a passive mux/switch, it would not provide any equalization or channel extension benefits.

    Regards,

    Lee

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