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DS80PCI800 pre-cursor and post-cursor information

Patrick Chen
Mastermind 8875 points

Other Parts Discussed in Thread: DS80PCI800, DS80PCI810

Hello,

             Do we have detail pre-cursor and post-cursor information of DS80PCI800 that can provide to customer ? Thank you. 

BR

Patrick

  • 0
    TI__Mastermind 43795 points

    Hi Patrick,

    The DS80PCI800 is used as a link extension repeater.  It does not directly provide pre- and post-cursor transmit equalization.  The linear equalization of the DS80PCI800 can recover a portion of these analog characteristics and re-transmit them to the PCIe receiver.  In addition to the continuous time linear equalization (CTLE), the DS80PCI800 can add output de-emphasis to the waveform.  This de-emphasis is more analog in nature since the repeater is not recovering or extracting a clock from the incoming data.

    The DS80PCI810 linear equalizer is similar device which is on the PCIe Gen 3 Integrators List from completing PCI-SIG testing.  There are several application reports which detail how the DS80PCI810 can help to recover PCIe Tx FIR information.

    www.ti.com/.../snla227.pdf

    www.ti.com/.../slyt629.pdf

    Regards,

    Lee