sigma=<0..1> | tweak to make 3dBoct's response smoother or sharper. | |
nT=<-1,0> | affects the DC response for Chebyshev and Cauer:
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sim | s | total .TRAN simulation time, needs test=1 . E.g.: if the command is .TRAN 25m , then sim=25m . (optional) |
test=<0,1> | 0 disables, 1 enables pins 0.2 , 0.3 and 0.4 . (optional)Note: The same trick applies here, as well. |
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fc | Hz | the center frequency. |
BWp | Hz | the pass-band bandwidth. |
BWs | Hz | the stop-band bandwidth. |
See the graphs on how to get the desired function with fc , BWp and BWs . |
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G=<-∞..∞> | gain, linear. | |
Asc | dB | frequency-scaling attenuation, positive value (all but 3dBoct). |
Ap | dB | pass-band ripple, positive value (Chebyshev and Cauer). |
As | dB | stop-band attenuation, positive value (all but 3dBoct and Bessel). |
N=<0:32> |
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Hidden: | ||
Rpar1 | Ω | dummy resistance across capacitors, default 1GΩ , can be null. |
Rpar
may induce strange phase jumps around ωc
for BS case when left with the default value; they are 360o
jumps and using the "phase unwrap
" option will correct them. Default is set because the error log will otherwise complain about possible "Matrix is singular
" due to the G-sources directly driving a capacitor with no DC current path.