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Doing FFT in cadence analog environment

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gogomi

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cadence dft

Hi,

Does someone know how to use FFT to transform the transient waveform into frequency domain in
cadence analog simulation environment? and is there any way to calculate the amplitude of one
time domain waveform? I coudn't find a good reference for the analog simulation environment.
Thank you very much for your help!

gogomickey
 

cadence fft

use dft function in calculator
 

    G

    gogomi

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    V

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fft cadence

does the wave be in AC?
 

dft cadence

transient analysis first
 

dft in cadence

Transient analysis first you see waveform then:
There is a push-button in the toolbar with words: FFT, look it up...

and the second method is:
xuel said:
use dft function in calculator
Click to expand...
 

    G

    gogomi

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fft in cadence

just use calculator, click vt and choose the node you want to take fft. Then choose dft in calculator and choose the appropriate time interval and finally plot it
 

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    gogomi

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cadence calculator dft

choose a proper window is very important
 

how to dft in cadence

Yes, I finally got it. The setup is kind of tricky. I'll have to run a long transient time to get the frequency window. Thank you guys!

gogomickey
 

plotting fft in a cadence

djalli said:
Transient analysis first you see waveform then:
There is a push-button in the toolbar with words: FFT, look it up...

and the second method is:
xuel said:
use dft function in calculator
Click to expand...
Click to expand...

A question about dft:

Does Cadence support different kind of windows?


Thx
 

how to do dft in cadence

eda4you said:
djalli said:
Transient analysis first you see waveform then:
There is a push-button in the toolbar with words: FFT, look it up...

and the second method is:
xuel said:
use dft function in calculator
Click to expand...
Click to expand...

A question about dft:

Does Cadence support different kind of windows?


Thx
Click to expand...

Yes, there are about a dozen of windows you can choose.
 

cadence calculator fft

u can use digital proccessing method
 

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