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Steve9's avatar
Steve9
Icon for Occasional Contributor rankOccasional Contributor
6 months ago
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Agilex 7 F Series Transceiver Pins Allowed Voltages During Powerup/When Unpowered

Hello,  I would like to confirm the voltages allowed on the Agilex 7 F series Transceiver I/O (the Transceiver Data lanes and the REF_CLK inputs) during power-up or when the Agilex and its transceiv...
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Programmable Logic Device
  • Ash_R_Altera's avatar
    Ash_R_Altera
    6 months ago

    Hi,

    Yes, there is no footnote about the refclk but they can be driven when unpowered as long as there is proper coupling and the voltages are in the specified limits.

     

    Regards

Steve9's avatar
Steve9
Icon for Occasional Contributor rankOccasional Contributor
6 months ago

Thank you! I had not noticed the footnotes regarding hot swap on the FGT receivers before. As you comment, I see footnote 97 explicitly calls out the Vin pk-pk for the receviers applies when the part is unpowered. 

Yes in our application, all lines will be AC coupled. 

The same footnote about driving lines unpowered does not exist for the FGT REF_CLK inputs (unless I'm missing it), but it seems safe to assume that similar unpowered rating applies to the REF_CLK input as well?

Ash_R_Altera's avatar
Ash_R_Altera
Icon for Regular Contributor rankRegular Contributor
6 months ago

Hi,

Yes, there is no footnote about the refclk but they can be driven when unpowered as long as there is proper coupling and the voltages are in the specified limits.

 

Regards