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DS160PR810: DS160PR810 USE?

Simba Su
Intellectual 490 points

Part Number: DS160PR810

1. How is the driving capability of the DS160PR810 PCIE4.0 Driver? How many db can link loss be enhanced at 8GHz? According to the following introduction, based on 42db, it should have increased by 14db. However, what is written below is 18db, which is a bit contradictory. Could you please clarify the actual capacity?

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2. Is the PCIE4.0 Driver unidirectional?
3. Requirements for the placement of Redriver: How many db can redriver support in front of and behind?
4. The following is our application topology. Please help evaluate whether the link risk of redriver placed on Riser2 is controllable.
Topology description: Before the redriver, it passes through a 4-level connector and a 2-level cable. After the redriver, it passes through a 2-level connector and a 1-level cable. The high-temperature loss before Redriver is approximately 23dB, and the high-temperature loss after redriver is approximately 22db.

 

                 S1- Link Risk Assessment -PCIE4.0(SW Managed Link Driver Before)

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                    SI- Link Risk Assessment -PCIE4.0(After SW Management Link Driver)

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  • 0
    TI__Expert 7870 points

    Hi Simba,

    I will check on these questions and will get back to you as soon as possible.

    Best regards,

    Greg

  • 0
    TI__Expert 7870 points

    Hi Simba,

    1. The device can CTLE boost up to 18dB, but only 42dB total channel loss is supported as this is the extent the device was validated for. 

    2. Yes, all 8 channels of the device flow in the same direction. 

    3. This is not defined exactly, but we provide general recommendations for redriver placement in a system here.

    4. The total channel loss here looks to be above 42dB, so we cannot guarantee signal integrity or performance for these cases. Do you know the equalization performance on the receiver end?

    Best regards,

    Greg