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how to calculate THD ??

Muffassir

 Hi all;

 

 I want to calculate the total harmonic distortion (%)   of my analog circuit.. I have two inputs as Vx and Vy ..Wherein i want to plot the THD variation due to input voltage swing between 0 and 1.8V while Vx set to different DC values.

How can i do that in cadence . I am using Cadence 6.1.4.500 and ADE L . and gpdk180.

 

Thanks in advance..

 

 

  • in reply to Cdub
    Cdub said:
    It seems like the notation of the numerator is not consistent with the notation of the denominator. Is there something I might be missing?

    Dear Cdub,

    I agree - the description appears inconsistent to me too. The ocean syntax, however, makes it reasonably clear to me anyway...

    Good luck!

    Shawn

  • in reply to ShawnLogan

    Ah The Ocean reference is better, I guess there is an error in the "Virtuoso Visualization and Analysis XL User Guide". I attached the ocean reference image below, the f is part of the index, makes much more sense:

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