Version 4
SHEET 1 2004 756
WIRE -16 -48 -48 -48
WIRE 416 -48 -16 -48
WIRE 816 -48 416 -48
WIRE 928 -48 896 -48
WIRE 1120 -48 1008 -48
WIRE 1232 -48 1120 -48
WIRE 1360 -48 1232 -48
WIRE 416 -16 416 -48
WIRE 1120 -16 1120 -48
WIRE 1232 -16 1232 -48
WIRE 1360 -16 1360 -48
WIRE -48 64 -48 -48
WIRE 416 144 416 64
WIRE 448 144 416 144
WIRE 560 144 528 144
WIRE 560 160 560 144
WIRE 1120 176 1120 64
WIRE 1232 176 1232 48
WIRE 1232 176 1120 176
WIRE 1360 176 1360 64
WIRE 1360 176 1232 176
WIRE 1232 224 1232 176
WIRE 560 256 560 224
WIRE -48 304 -48 144
FLAG -48 304 0
FLAG 1232 224 0
FLAG 560 256 0
FLAG -16 -48 Vin
SYMBOL res 1024 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R0
SYMATTR Value 6.9
SYMBOL res 1104 -32 R0
SYMATTR InstName R
SYMATTR Value 12.79
SYMBOL cap 1216 -16 R0
SYMATTR InstName C
SYMATTR Value 82.82µ
SYMBOL ind 1344 -32 R0
SYMATTR InstName L
SYMATTR Value 277.41µ
SYMBOL ind 912 -64 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L0
SYMATTR Value 0.01m
SYMBOL ind 544 128 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName LN
SYMATTR Value 0.7122m
SYMBOL cap 544 160 R0
SYMATTR InstName CN
SYMATTR Value 0.03226m
SYMBOL res 400 -32 R0
SYMATTR InstName R1
SYMATTR Value 6.9
SYMBOL current -48 144 M180
WINDOW 0 24 88 Left 2
WINDOW 3 24 0 Left 2
WINDOW 123 24 -28 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value 0
SYMATTR Value2 AC 1
TEXT 424 -232 Left 3 ;Notch Filter
TEXT 880 -232 Left 3 ;Equivalent circuit of speaker
TEXT -8 416 Left 2 !.ac dec 100 10 100k
TEXT 416 -464 Left 3 ;Zout=V(output)/1A
TEXT 416 -512 Left 3 ;Plot V(output)/1A to get the ouput impedance.
LINE Normal 352 368 352 -192 1
LINE Normal 352 -192 672 -192 1
LINE Normal 672 368 352 368 1
RECTANGLE Normal 1504 368 672 -192 1