Version 4
SHEET 1 1076 948
WIRE 0 128 -208 128
WIRE 368 128 0 128
WIRE -208 144 -208 128
WIRE 0 192 0 128
WIRE 64 192 0 192
WIRE 400 192 320 192
WIRE 0 224 0 192
WIRE -208 240 -208 224
WIRE 0 304 0 288
WIRE 64 304 0 304
WIRE 336 304 320 304
WIRE -112 416 -176 416
WIRE -16 416 -32 416
WIRE 64 416 48 416
WIRE 368 416 368 128
WIRE 368 416 320 416
WIRE -496 432 -496 416
WIRE -176 432 -176 416
WIRE -496 528 -496 512
WIRE -176 528 -176 512
FLAG -208 240 0
FLAG -496 528 0
FLAG 400 192 OUT
FLAG 336 304 0
FLAG -496 416 RF
FLAG -176 528 0
SYMBOL voltage -208 128 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL voltage -496 416 R0
WINDOW 39 24 117 Left 2
SYMATTR Value SINE(0 .1 100Meg)
SYMATTR InstName V2
SYMBOL cap 48 400 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 5p
SYMBOL LTC5507 192 304 R0
SYMATTR InstName U1
SYMBOL cap -16 224 R0
SYMATTR InstName C2
SYMATTR Value 28p
SYMBOL bv -176 416 R0
SYMATTR InstName B1
SYMATTR Value V=V(rf)*(1+sin(2*pi*50K*time))
SYMBOL res -16 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 50
TEXT 384 472 Left 2 !.tran 60u