fourier.nsx

《Protel DXP 2004 SP2原理图与PCB设计（第2版）》范例源文件

Fourier
*SPICE Netlist generated by Advanced Sim server on 2006-12-2 20:12:44

*Schematic Netlist:
V1KHz IN 0 DC 0 SIN(0 1 1KHz 0 0 0) AC 1 0
R1 0 OUT 1K
XV1 IN 0 OUT 0 SQRVCO#0

.SAVE 0 IN OUT V1KHz#branch @V1KHz[z] @R1[i] @R1[p] @V1KHz[p]

*PLOT TRAN -1 1 A=IN A=OUT

*Selected Circuit Analyses:
.TRAN 6.667E-5 0.01667 0 6.667E-5
.SET NFREQS=20
.FOUR 300 @V1KHz[p] V1KHz#branch @R1[p] @R1[i] OUT IN

*Models and Subcircuit:
.SUBCKT SQRVCO#0 1 2 3 4
A1 %vd(1,2) %vd(3,4) ASQRVCO
.MODEL ASQRVCO square(cntl_array=[0E+0 1E+0 2E+0 3E+0 4E+0] freq_array=[0E+0 1E+3
+ 2E+3 3E+3 4E+3] out_low=0E+0 out_high=1E+0 duty_cycle=5E-1 rise_time=1E-6
+ fall_time=1E-6)
.ENDS SQRVCO

.END