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Flicker with FPD LinkDS99R421 Tx and DS99R124 Rx

Madhu Vatte
Intellectual 835 points
Other Parts Discussed in Thread: DS99R421

Hi,

I am using FDP link and the parts used are DS99R124 and DS99R421 FPD.  Attached are the schematics for the tx and rx.  There is a flicker at the receiver end.  Not sure what I am doing wrong.  Any help appreciated.

Thanks

Madhu

  • 0
    TI__Intellectual 2060 points

    Madhu,

     

    Can you also send the layout?  Most likely it’s something in the layout.  Taking a quick glance at the schematic I noticed that you are using ESD protection with 3-5pF, I would recommend protection with a maximum capacitance of 1.5pF.  I would try depopulating this socket and seeing if the problem is resolved.  If so I can recommend a replacement.

     

    Regards,

    Mike