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Sivakumar_S's avatar
Sivakumar_S
Icon for New Contributor rankNew Contributor
2 years ago

How to read differential data in double-datarate mode using differential clock for an RF transceiver

Hi ,

In my design there is a RF transceiver (with Arria10 SoC), which has differential data which is in double data rate mode. Also the data clock (3.84MHz)and frame clock is of differential mode.

So, how can I read the ADC data with clocks which is of differential mode. In GPIO IP there is an option for differential to the datain or dataout but not for clocks. Can I connect the differential clock p to the the one clock pin?

I checked the GPIO IP, but in the User guide they have mentioned " The GPIO Intel® FPGA IP core supports the general purpose I/O (GPIO) features and components. You can use GPIOs in general applications that are not specific to transceivers, memory interfaces, or LVDS. "

I also checked the LVDS IP, but there minimum supported data clock is around 100MHz.

3 Replies

  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    You design the intended logic and connect any IO standard of your choice. Differential IO standards use a single port pin. No need for special IO IP.
  • ZiYing_Intel's avatar
    ZiYing_Intel
    Icon for Frequent Contributor rankFrequent Contributor

    Hi,


    Since long time no hear from you, I am now close the issue. If you have any question after the case closed, please do feel free to submit another issue.


    Best regards,

    Zi Ying