Version 4
SHEET 1 1716 792
WIRE 352 -80 32 -80
WIRE 1024 -80 576 -80
WIRE 1648 -80 1232 -80
WIRE 352 -48 288 -48
WIRE 1024 -48 944 -48
WIRE 576 -16 576 -80
WIRE 1232 -16 1232 -80
WIRE 288 48 288 -48
WIRE 944 48 944 -48
WIRE 576 96 576 64
WIRE 1232 96 1232 64
WIRE 288 160 288 128
WIRE 944 160 944 128
WIRE 32 368 32 -80
WIRE 352 368 32 368
WIRE 1024 368 576 368
WIRE 1552 368 1232 368
WIRE 32 400 32 368
WIRE 352 400 288 400
WIRE 1024 400 944 400
WIRE 576 416 576 368
WIRE 1232 416 1232 368
WIRE 1552 416 1552 368
WIRE 1648 416 1648 -80
WIRE 288 480 288 400
WIRE 944 480 944 400
WIRE 32 512 32 480
WIRE 576 528 576 496
WIRE 1232 528 1232 496
WIRE 1552 544 1552 496
WIRE 1600 544 1552 544
WIRE 1648 544 1648 496
WIRE 1648 544 1600 544
WIRE 1600 576 1600 544
WIRE 288 592 288 560
WIRE 944 592 944 560
FLAG 352 -80 VIN
FLAG 32 512 0
FLAG 352 368 VIN
FLAG 352 400 MIX1Q
FLAG 352 -48 MIX1I
FLAG 944 160 0
FLAG 944 592 0
FLAG 1232 528 0
FLAG 1232 96 0
FLAG 576 96 0
FLAG 288 160 0
FLAG 288 592 0
FLAG 576 528 0
FLAG 1024 -48 MIX2I
FLAG 1024 400 MIX2Q
FLAG 1024 -80 LFI
FLAG 1024 368 LFQ
FLAG 1600 656 0
SYMBOL voltage 32 384 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1V 7000k)
SYMBOL bv 576 -32 R0
SYMATTR InstName B1
SYMATTR Value V=V(VIN)*V(MIX1I)
SYMBOL voltage 288 32 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 1V 1k 0 0 0)
SYMBOL voltage 288 464 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 1V 1k 0 0 90)
SYMBOL bv 576 400 R0
SYMATTR InstName B2
SYMATTR Value V=V(VIN)*V(MIX1Q)
SYMBOL voltage 944 32 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value SINE(0 1V 6998.5k 0 0 90)
SYMBOL voltage 944 464 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value SINE(0 1V 6998.5k 0 0 0)
SYMBOL bv 1232 400 R0
SYMATTR InstName B3
SYMATTR Value V=V(LFQ)*V(MIX2Q)
SYMBOL bv 1232 -32 R0
SYMATTR InstName B4
SYMATTR Value V=V(LFI)*V(MIX2I)
SYMBOL res 1536 400 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res 1632 400 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 1584 560 R0
SYMATTR InstName R3
SYMATTR Value 100
TEXT 0 712 Left 2 !;ac lin 1000 1 10000
TEXT 0 680 Left 2 !.tran 0 10ms 0 1µs