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PN function in Visualizaion & Anaysis XL Calculator

JaeWook

Hi,

I have a question about the PN function, available in the Calculator.

 

Is an output phase noise spectrum is a signle sideband or a double sideband spectrum?

To avoid any confusions, I mean the 'double sideband' by a spectrum 3dB more than the 'single sideband' in magnitude.

 

Thanks for any comment or answers.

Jae Wook

Parents
  • Hi,
    I am not sure I fully understand this function. As test, I generate a narrow FM sine wave using standard Cadence sin voltage source. When processing the output with PN function there is no trace of the FM component. Pretty much a smooth line. When I try high modulation index (wide band) then the component appears, but does not make sense.

    How does it work?

    Thanks,

    Kristopher
Reply
  • Hi,
    I am not sure I fully understand this function. As test, I generate a narrow FM sine wave using standard Cadence sin voltage source. When processing the output with PN function there is no trace of the FM component. Pretty much a smooth line. When I try high modulation index (wide band) then the component appears, but does not make sense.

    How does it work?

    Thanks,

    Kristopher
Children
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