initial commit

examples/jigs/2ndOrderNotch.asc

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+Version 4
+SHEET 1 1060 680
+WIRE -624 -112 -688 -112
+WIRE -528 -112 -560 -112
+WIRE -320 -112 -480 -112
+WIRE -192 -112 -320 -112
+WIRE -64 -112 -112 -112
+WIRE 112 -112 -64 -112
+WIRE 304 -112 112 -112
+WIRE 464 -112 352 -112
+WIRE 528 -112 464 -112
+WIRE 560 -112 528 -112
+WIRE 688 -112 624 -112
+WIRE -480 -80 -480 -112
+WIRE -528 -64 -528 -112
+WIRE -320 -48 -320 -112
+WIRE -64 -48 -64 -112
+WIRE 112 -48 112 -112
+WIRE 352 -48 352 -112
+WIRE 464 -48 464 -112
+WIRE 304 -32 304 -112
+WIRE -528 16 -528 -16
+WIRE -480 32 -480 0
+WIRE 304 48 304 16
+WIRE 352 48 352 32
+WIRE 464 48 464 32
+WIRE -320 64 -320 32
+WIRE -64 64 -64 16
+WIRE 112 64 112 32
+FLAG -320 64 0
+FLAG -480 32 0
+FLAG -528 16 0
+FLAG -64 64 0
+FLAG 112 64 0
+FLAG 304 48 0
+FLAG 352 48 0
+FLAG 464 48 0
+FLAG 528 -112 2
+FLAG -528 -112 1
+SYMBOL g -480 -96 R0
+SYMATTR InstName G1
+SYMATTR Value {4/R1}
+SYMBOL res -336 -64 R0
+SYMATTR InstName R1
+SYMATTR Value {R1/2}
+SYMBOL res -96 -128 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value {R1/2}
+SYMBOL res 96 -64 R0
+SYMATTR InstName R3
+SYMATTR Value {R1}
+SYMBOL cap -80 -48 R0
+WINDOW 0 50 9 Left 2
+WINDOW 3 44 40 Left 2
+WINDOW 123 45 71 Left 2
+SYMATTR InstName C1
+SYMATTR Value {C1}
+SYMATTR Value2 Lser={L1}
+SYMBOL g 352 -64 R0
+SYMATTR InstName G2
+SYMATTR Value {10*H}
+SYMBOL res 448 -64 R0
+SYMATTR InstName R4
+SYMATTR Value .1
+SYMBOL Misc\\jumper 592 -176 R0
+SYMATTR InstName X1
+SYMBOL Misc\\jumper -592 -176 M0
+SYMATTR InstName X2
+TEXT 400 -280 Left 2 ;.param f0= 1k Q=.5
+TEXT 496 -184 Left 2 !.param R1=1k
+TEXT 80 160 Left 2 !.param L1=R1*Q/(4*pi*f0)
+TEXT -456 -280 Left 2 ;Most efficient LTSPICE implementation for f0 and Q set by parameters >>>
+TEXT 272 -184 Left 2 ;R1 is arbitary >>>
+TEXT 200 -224 Left 2 ;This version puts 1/2 the R1 resistance in the capacitor
+TEXT 80 200 Left 2 !.param C1=1/(L1*(2*pi*f0)**2)
+TEXT 640 -128 Left 2 ;Vout
+TEXT -640 -128 Right 2 ;Vin