Fifth-Order Chebyshev Filter Function

** Circuit Description **
* input signal
Vin 1 0 AC 1V
* a cascade of biquads forming a 5th-order Chebyshev Filter Function
* first biquad
R1 1 0 100Meg
E1 2 0 Laplace {V(1)} = { (6.2832e+4/8.1408)/(s+0.2895*6.2832e+4) }
* 2nd biquad
R2 2 0 100Meg
E2 3 0 Laplace {V(2)} = { (6.2832e+4*6.2832e+4)/(s*s+0.4684*6.2832e+4*s+0.4293*6.2832e+4*6.2832e+4) }
* 3rd biquad
R3 3 0 100Meg
E3 4 0 Laplace {V(3)} = { (6.2832e+4*6.2832e+4)/(s*s+0.1789*6.2832e+4*s+0.9883*6.2832e+4*6.2832e+4) }
* output
Rout 4 0 1k
** Analysis Requests **
.AC LIN 100 1Hz 20kHz
** Output Requests **
.PLOT AC VdB(4) Vp(4)
.probe
.end