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 av_extracted-schematic discrepency 

Last post Wed, Apr 28 2010 7:13 AM by rfdude. 0 replies.
Started by rfdude 28 Apr 2010 07:13 AM. Topic has 0 replies and 971 views
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  • Wed, Apr 28 2010 7:13 AM

    • rfdude
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    • Joined on Mon, Oct 19 2009
    • Posts 1
    • Points 5
    av_extracted-schematic discrepency Reply

     Hello all

     

    I have designed a mixer in 130nm technology and I have done the LVS for the circuit and as a result, schematic and layout match. I am doing post layout simulation to compare the results of the extracted version with schematic. For conversion gain, S-parameters and interception points the results are fine but, Noise figures are different.

    In schematic simulations, 1/f noise is much lower (20 dB) from the extracted version. It only happens for 1/f noise!

    I have done the noise setup according to SpectreRF_Mixer533AN.pdf from cadence.

     Can anyone give some hint if I have to consider something for proper 1/f simulation?

     

    Thanks

    • Post Points: 5
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Started by rfdude at 28 Apr 2010 07:13 AM. Topic has 0 replies.