Version 4 SHEET 1 1540 1004 WIRE 320 -192 320 -240 WIRE 320 -192 192 -192 WIRE 192 -112 192 -192 WIRE 320 -32 320 -192 WIRE -192 16 -352 16 WIRE -144 16 -192 16 WIRE 16 16 -80 16 WIRE 192 16 192 -32 WIRE 192 16 16 16 WIRE 256 16 192 16 WIRE -192 48 -192 16 WIRE 16 64 16 16 WIRE -352 128 -352 16 WIRE 16 176 16 128 WIRE 320 176 320 64 WIRE 320 176 16 176 WIRE 368 176 320 176 WIRE 496 176 448 176 WIRE -880 192 -880 128 WIRE -768 208 -768 128 WIRE -688 208 -688 128 WIRE -608 208 -608 128 WIRE 16 208 16 176 WIRE 192 208 192 16 WIRE 320 224 320 176 WIRE -880 320 -880 272 WIRE -768 320 -768 272 WIRE -688 320 -688 272 WIRE -608 320 -608 272 WIRE -352 320 -352 192 WIRE -192 320 -192 128 WIRE 16 320 16 272 WIRE 192 320 192 288 WIRE 320 320 320 304 FLAG 16 320 0 FLAG -880 320 0 FLAG 320 320 0 FLAG -192 320 0 FLAG -352 320 0 FLAG -880 128 vcc IOPIN -880 128 Out FLAG 320 -240 vcc IOPIN 320 -240 Out FLAG 192 320 0 FLAG 496 176 OUT IOPIN 496 176 Out FLAG -768 320 0 FLAG -688 320 0 FLAG -608 320 0 FLAG -768 128 vcc IOPIN -768 128 Out FLAG -688 128 vcc IOPIN -688 128 Out FLAG -608 128 vcc IOPIN -608 128 Out SYMBOL ind -208 32 R0 SYMATTR InstName L1 SYMATTR Value 891nH SYMBOL cap -80 0 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 220p SYMBOL cap 0 64 R0 SYMATTR InstName C2 SYMATTR Value 2n SYMBOL cap 0 208 R0 SYMATTR InstName C3 SYMATTR Value 500p SYMBOL cap -368 128 R0 SYMATTR InstName C4 SYMATTR Value 100p SYMBOL npn 256 -32 R0 SYMATTR InstName Q1 SYMATTR Value BFR540 SYMATTR Prefix X SYMBOL res 304 208 R0 SYMATTR InstName R2 SYMATTR Value 120R SYMBOL voltage -880 176 R0 WINDOW 123 24 124 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value2 AC 1 SYMATTR InstName V2 SYMATTR Value 5V SYMBOL res 176 192 R0 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL res 176 -128 R0 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL res 464 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 120R SYMBOL cap -784 208 R0 SYMATTR InstName C5 SYMATTR Value 1µ SYMBOL cap -704 208 R0 SYMATTR InstName C6 SYMATTR Value 100n SYMBOL cap -624 208 R0 SYMATTR InstName C7 SYMATTR Value 500p TEXT -520 352 Left 2 ;705nH, 5 turns, square PCB planar inductor\nConductor spacing: 200 um\nConductor width: 200 um\ninner diameter: 11400 um\nouter diameter: 15000 um\n \ninductance: 705.3696 nH TEXT -624 600 Left 2 !.tran 0 0.0005 0 0.0001 startup TEXT -360 -416 Left 7 ;Oszillator TEXT 760 -424 Left 7 ;Demodulator TEXT -624 632 Left 2 !.inc BFR540.mod