Driveforce,
The fourier component implements the fourier analysis that is described in Ken's
book, DG to Spice and Spectre, and in published papers, please see
http://www.kenkundert.com/docs/cicc94.pdfThe differences are discussed in detail in the paper. You also might want to
see the e-mail thread mentioned in Yawei's thd discussion for some additional
discussion about using the DFT and Fourier Integral for data converters.
To use,
1) Add the component to your schematic
2) Connect the fourier component to the signal to be measured
For single-ended signals connect the signal to the component and ground the other pin
For differential signals connect the signals to the symbol
3) Fill in the values to be used for the analysis.
I have been using the fourier component for a while, but haven't had need to use the
two channel version.
Best Regards,
Sheldon