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spectre RF Noise-Aware PLL Methodology

jenand

Hello all, 

I recently heard about the PLL Noise-Aware Design Flow and was eager to try it out myself. Unfortunately, I have only limited documentation (a document by Helene Thibieroz named Using Spectre RF Noise-Aware PLL Methodology to Predict PLL Behavior Accurately") and did not manage to extract the required models for the VCO and the PFD. In fact, if I open my ADE, the options "SKI Plugin for PLL Macro Model" is not visible at all. My software versions are: Cadence IC 6.1.3 and MMSIM 7.0. 

 Any help or suggestions are appreciated.

Kind regards,

Jens 

Parents

  • Hello Sven,

    Using SpectreRF VCO macromodel, you can sweep three sweep variables: Vtune, Vdd, Vss.  For two tuning inputs, you can use Vdd or Vss as one of the tuning control but you can't check the interference from Vdd or Vss.

    Hope this helps, let me know if you need anything else.

    Regards,

    Helene

     

Reply

  • Hello Sven,

    Using SpectreRF VCO macromodel, you can sweep three sweep variables: Vtune, Vdd, Vss.  For two tuning inputs, you can use Vdd or Vss as one of the tuning control but you can't check the interference from Vdd or Vss.

    Hope this helps, let me know if you need anything else.

    Regards,

    Helene

     

Children
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