ADIsimPLL / LTC6952 - is their a 6952 model that can be downloaded and added to ADIsimPLL, or is there a similar sim tool for the 6952 that does not require hardware?

I tried to use the 6952 wizard but it seems to require I buy an eval board. How do I simulate an  LTC6952  with models of the op-amp and VCO I want to use?

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  • +1
    •  Analog Employees 
    on Sep 9, 2021 1:48 PM

    The LTC6952Wizard can be use in simulation mode (no hardware).  There is an help file with a step by step example of the design process in LTC6952Wizard.  See 2nd picture below of the LTC6952Wizard and the help file.  I would recommend going through this and let me know if you have any questions.  But to provide a quick answer to your questions.  Make sure you select 'LTC6952' and 'Com Disabled' in the bottom left hand corner of the LTC6952Wizard when using without hardware.

    The DC2609 (LTC6952 Eval board) schematic has an active loop filter schematic you can start with.  This is a very versatile op amp in terms of Vtune range, that we have had good success with across a variety of VCOs.

    We also made a VCO rider board with an active loop filter, that may be of interest https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/DC2664A.html.  Its SMA spacing was made to mate directly with the DC2609.  If you are experimenting with many VCO and loop filter combinations.  This board is easier to modify(solder) than the DC2609.

Reply
  • +1
    •  Analog Employees 
    on Sep 9, 2021 1:48 PM

    The LTC6952Wizard can be use in simulation mode (no hardware).  There is an help file with a step by step example of the design process in LTC6952Wizard.  See 2nd picture below of the LTC6952Wizard and the help file.  I would recommend going through this and let me know if you have any questions.  But to provide a quick answer to your questions.  Make sure you select 'LTC6952' and 'Com Disabled' in the bottom left hand corner of the LTC6952Wizard when using without hardware.

    The DC2609 (LTC6952 Eval board) schematic has an active loop filter schematic you can start with.  This is a very versatile op amp in terms of Vtune range, that we have had good success with across a variety of VCOs.

    We also made a VCO rider board with an active loop filter, that may be of interest https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/DC2664A.html.  Its SMA spacing was made to mate directly with the DC2609.  If you are experimenting with many VCO and loop filter combinations.  This board is easier to modify(solder) than the DC2609.

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