Version 4
SHEET 1 880 680
WIRE -336 64 -336 96
WIRE -336 176 -336 192
WIRE -320 64 -336 64
WIRE -96 144 -96 160
WIRE -96 80 -96 64
WIRE -96 64 -320 64
FLAG -336 192 0
FLAG -320 64 a
FLAG -96 160 0
SYMBOL voltage -336 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PWL(0 0 10m 10)
SYMBOL varactor -112 144 M180
WINDOW 0 24 72 Left 0
WINDOW 3 24 0 Left 0
SYMATTR InstName D1
SYMATTR Value D1SV331
TEXT -360 240 Left 0 !.model D1SV331 D(Is=1.5p Cjo=50.72p Vj=0.862 M=1.353 Fc=0.5 Tt=.5u Rs=0.45)\n.option plotwinsize=0\n.tran 0 10m 1u 1u