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JLee25's avatar
JLee25
Icon for Contributor rankContributor
5 years ago

Cyclone 10 Gx FPLL Settings

Hi, I am looking for Cyclone 10GX FPLL data about the values for loop filter resistance, charge pump current... My main application is using Nios II to dynamically change the values but I am ...
  • JLee25's avatar
    JLee25
    Icon for Contributor rankContributor
    5 years ago

    Hi JonWay,

    Thank you for the shared data.

    What I am trying to know is how to find proper fPLL settings for,

    " loop filter resistance, charge pump current..".

    I am not able to fine the guidelines like "AN-728".

    As my design needs to manually adjust the M values dynamically.

    BRs,

    Johnson

    • JonWay_altera's avatar
      JonWay_altera
      Icon for Frequent Contributor rankFrequent Contributor
      5 years ago

      Hi,

      The excel sheet has the info of the loop filter resistance and charge pump as well.
      Just like IOPLL, these values are auto calculated.

      I would suggest that you follow the Youtube how-to to generate the mif, and then compare what are the changes in the loop filter/charge pump.