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Cyclone 10 Gx FPLL Settings

JLee25
Novice
1,877 Views

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 not able to find any information related to this usage.

   For example, AN-728 provides data about the loop filter, charge pump..

JLee25_0-1610526091092.png

Similar constraint should exist for FPLL..

Please help!

Thank you!

 

BRs,

Johnson

 

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JonWay_C_Intel
Employee
1,858 Views
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JLee25
Novice
1,849 Views

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

 

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JonWay_C_Intel
Employee
1,841 Views

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.

 

 

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