016_fft_sim : FFt variations
Requires: SmartSpice & Smartview
Minimum Versions: SMARTSPICE 4.6.5.R
A simple input deck running .FFT and .MEASURE analysis on a circuit shows variation in response to changes in the frequency of the source by rubberbanding parameter frequency in the SIN function of the voltage source.
Input Files
rubberband_example_16.in
*FFT & Rubberband * rubberband parameter frequency= 2.5e07 in sin function V_V3 1 0 sin(0 1 2.5e07) R_R2 0 1 1k .TRAN 1n 80n .fft v(1) np=512;format=unormFMIN=40Meg FMAX=120Meg *.fft v(1) np=1024;format=unormFMIN=40Meg FMAX=120Meg .probe fft vdb(1) .options fft_accurate .measure fft FFT_MAX_FREQ AMAX vdb(1) .measure fft FFT_AVG AVG vdb(1) .END
Graphics
