Version 4
SHEET 1 1060 680
WIRE 0 224 0 192
WIRE 288 192 0 192
WIRE 288 288 288 240
WIRE 336 176 336 112
WIRE 336 288 336 256
WIRE 512 112 336 112
WIRE 512 176 512 112
WIRE 512 288 512 256
FLAG 0 304 0
FLAG 336 288 0
FLAG 512 288 0
FLAG 288 288 0
SYMBOL bv 0 208 R0
WINDOW 123 -26 158 Left 0
WINDOW 3 -25 129 Left 0
SYMATTR Value2 COS(2*PI*white(time*0.93e9+0.5))-0.25
SYMATTR Value V=SQRT(-2*LN(0.999997*white(time*1.07*ft)+0.50001))*
SYMATTR InstName B1
SYMBOL g 336 160 R0
SYMATTR InstName G1
SYMATTR Value 100n
SYMBOL res 496 160 R0
SYMATTR InstName R1
SYMATTR Value 1
TEXT -2 82 Left 0 !.tran 0 10u 0 .5n
TEXT 0 112 Left 0 !.params ft=1e9