Version 4
SHEET 1 2044 680
WIRE 144 16 144 0
WIRE 144 112 144 96
WIRE 144 256 144 240
WIRE 144 352 144 336
WIRE 192 0 144 0
WIRE 192 16 192 0
WIRE 192 112 144 112
WIRE 192 112 192 80
WIRE 192 144 192 112
WIRE 192 240 144 240
WIRE 192 256 192 240
WIRE 192 352 144 352
WIRE 192 352 192 320
WIRE 192 384 192 352
WIRE 240 112 192 112
WIRE 240 112 240 -256
WIRE 256 352 192 352
WIRE 256 352 256 -288
WIRE 272 240 192 240
WIRE 272 240 272 -272
WIRE 288 0 192 0
WIRE 288 0 288 -240
WIRE 304 0 288 0
WIRE 304 240 272 240
WIRE 400 0 384 0
WIRE 400 0 400 -48
WIRE 400 240 384 240
WIRE 400 288 400 240
WIRE 416 -48 400 -48
WIRE 416 96 384 96
WIRE 416 144 384 144
WIRE 416 288 400 288
WIRE 496 144 480 144
WIRE 496 480 496 144
WIRE 512 0 400 0
WIRE 512 0 512 -224
WIRE 512 240 400 240
WIRE 512 464 512 240
WIRE 528 -144 384 -144
WIRE 528 -96 384 -96
WIRE 528 -48 480 -48
WIRE 528 0 512 0
WIRE 528 48 384 48
WIRE 528 96 480 96
WIRE 528 144 496 144
WIRE 528 192 384 192
WIRE 528 240 512 240
WIRE 528 288 480 288
WIRE 528 336 384 336
WIRE 816 -224 512 -224
WIRE 816 464 512 464
WIRE 832 48 784 48
WIRE 864 -144 784 -144
WIRE 864 -48 784 -48
WIRE 864 192 784 192
WIRE 864 288 784 288
WIRE 864 384 784 384
WIRE 896 144 784 144
WIRE 896 176 896 144
WIRE 912 144 896 144
WIRE 912 176 896 176
WIRE 928 -224 896 -224
WIRE 928 -208 928 -224
WIRE 928 0 784 0
WIRE 928 0 928 -128
WIRE 928 240 784 240
WIRE 928 368 928 240
WIRE 928 464 896 464
WIRE 928 464 928 448
WIRE 944 48 912 48
WIRE 976 -224 928 -224
WIRE 976 -208 976 -224
WIRE 976 -96 784 -96
WIRE 976 -96 976 -128
WIRE 976 0 928 0
WIRE 976 240 928 240
WIRE 976 336 784 336
WIRE 976 368 976 336
WIRE 976 464 928 464
WIRE 976 464 976 448
WIRE 992 -96 976 -96
WIRE 992 336 976 336
WIRE 1008 96 784 96
WIRE 1008 144 992 144
WIRE 1008 144 1008 96
WIRE 1024 96 1008 96
WIRE 1056 -224 976 -224
WIRE 1056 -208 1056 -224
WIRE 1056 -96 1056 -128
WIRE 1072 336 1056 336
WIRE 1072 368 1072 336
WIRE 1072 464 976 464
WIRE 1072 464 1072 448
WIRE 1088 -96 1056 -96
WIRE 1088 336 1072 336
WIRE 1104 96 1088 96
WIRE 1168 176 992 176
WIRE 1168 480 496 480
WIRE 1168 480 1168 176
WIRE 1184 -96 1184 -112
WIRE 1184 0 1056 0
WIRE 1184 0 1184 -16
WIRE 1200 -112 1184 -112
WIRE 1200 0 1184 0
WIRE 1232 -32 1232 -64
WIRE 1232 128 1232 32
WIRE 1248 -64 1232 -64
WIRE 1296 -240 288 -240
WIRE 1296 -208 1296 -240
WIRE 1296 -112 1264 -112
WIRE 1296 -112 1296 -128
WIRE 1296 -16 1264 -16
WIRE 1296 -16 1296 -112
WIRE 1296 32 1296 -16
WIRE 1296 128 1296 112
WIRE 1344 -256 240 -256
WIRE 1344 -208 1344 -256
WIRE 1344 16 1264 16
WIRE 1344 16 1344 -128
WIRE 1344 32 1344 16
WIRE 1344 128 1344 112
WIRE 1392 -208 1392 -224
WIRE 1392 -112 1296 -112
WIRE 1392 -112 1392 -128
WIRE 1392 16 1344 16
WIRE 1392 32 1392 16
WIRE 1392 128 1392 112
WIRE 1392 416 1392 368
WIRE 1424 -224 1392 -224
WIRE 1424 -48 1424 -224
WIRE 1424 128 1392 128
WIRE 1424 128 1424 32
WIRE 1424 416 1392 416
WIRE 1504 -96 1504 -112
WIRE 1504 0 1504 -16
WIRE 1504 240 1056 240
WIRE 1504 240 1504 0
WIRE 1504 416 1488 416
WIRE 1504 416 1504 368
WIRE 1520 -112 1504 -112
WIRE 1520 0 1504 0
WIRE 1520 416 1504 416
WIRE 1552 -32 1552 -64
WIRE 1552 128 1552 32
WIRE 1568 -64 1552 -64
WIRE 1616 -272 272 -272
WIRE 1616 -208 1616 -272
WIRE 1616 -112 1584 -112
WIRE 1616 -112 1616 -128
WIRE 1616 -16 1584 -16
WIRE 1616 -16 1616 -112
WIRE 1616 32 1616 -16
WIRE 1616 128 1616 112
WIRE 1616 416 1584 416
WIRE 1664 -288 256 -288
WIRE 1664 -208 1664 -288
WIRE 1664 16 1584 16
WIRE 1664 16 1664 -128
WIRE 1664 32 1664 16
WIRE 1664 128 1664 112
WIRE 1712 -208 1712 -224
WIRE 1712 -112 1616 -112
WIRE 1712 -112 1712 -128
WIRE 1712 16 1664 16
WIRE 1712 32 1712 16
WIRE 1712 128 1712 112
WIRE 1744 -224 1712 -224
WIRE 1744 -48 1744 -224
WIRE 1744 128 1712 128
WIRE 1744 128 1744 32
FLAG 384 -96 +60
FLAG 864 -48 +60
FLAG 864 288 +60
FLAG 384 96 0
FLAG 384 48 0
FLAG 384 -144 0
FLAG 384 144 0
FLAG 384 192 0
FLAG 192 144 +30
FLAG 192 384 +30
FLAG 384 336 +60
FLAG 864 -144 0
FLAG 864 384 0
FLAG 864 192 0
FLAG 944 48 +60
FLAG 1088 -96 0
FLAG 1232 128 0
FLAG 1296 128 0
FLAG 1344 128 0
FLAG 1248 -64 +30
FLAG 1552 128 0
FLAG 1616 128 0
FLAG 1664 128 0
FLAG 1104 96 0
FLAG 1088 336 0
FLAG 1616 416 0
FLAG 1504 368 +30
FLAG 1392 368 +60
FLAG 1568 -64 +30
SYMBOL Misc\\EuropeanResistor 1360 -224 M0
WINDOW 0 16 42 VRight 0
WINDOW 3 -32 0 Left 0
SYMATTR InstName R9
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1312 -224 M0
WINDOW 0 15 36 VRight 0
WINDOW 3 32 35 Left 0
SYMATTR InstName R10
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1376 16 R0
WINDOW 0 16 69 VLeft 0
WINDOW 3 18 146 Left 0
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL voltage 1424 -64 R0
WINDOW 0 -14 58 Left 0
WINDOW 3 -150 -247 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(0 1 1k)
SYMBOL Misc\\EuropeanResistor 1408 -224 M0
WINDOW 0 16 41 VRight 0
WINDOW 3 -1 130 Left 0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL Opamps\\opamp2 1232 -64 M0
WINDOW 0 -19 63 Left 0
WINDOW 3 5 104 Invisible 0
SYMATTR InstName U1
SYMATTR Value LF353/NS
SYMATTR SpiceModel LF353/NS
SYMBOL mysym\\tda8939 656 -16 R0
SYMATTR InstName U2
SYMBOL ind 288 16 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 20µ
SYMBOL ind 288 256 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L2
SYMATTR Value 20µ
SYMBOL cap 176 16 R0
WINDOW 0 21 10 Left 0
WINDOW 3 -3 -32 Left 0
SYMATTR InstName C2
SYMATTR Value 470n
SYMBOL cap 176 256 R0
WINDOW 3 -3 -34 Left 0
SYMATTR Value 470n
SYMATTR InstName C3
SYMBOL Misc\\EuropeanResistor 160 0 M0
WINDOW 0 17 72 VLeft 0
SYMATTR InstName R1
SYMATTR Value 4
SYMBOL Misc\\EuropeanResistor 160 240 M0
WINDOW 0 17 70 VLeft 0
SYMATTR InstName R2
SYMATTR Value 4
SYMBOL cap 480 80 R90
WINDOW 0 45 51 VBottom 0
WINDOW 3 -9 65 VTop 0
SYMATTR InstName C5
SYMATTR Value 100n
SYMBOL cap 480 128 R90
WINDOW 0 16 51 VBottom 0
WINDOW 3 16 64 VTop 0
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL cap 480 272 R90
WINDOW 0 11 53 VBottom 0
WINDOW 3 18 64 VTop 0
SYMATTR InstName C7
SYMATTR Value 100n
SYMBOL cap 480 -64 R90
WINDOW 0 42 56 VBottom 0
WINDOW 3 -10 66 VTop 0
SYMATTR InstName C8
SYMATTR Value 100n
SYMBOL Misc\\EuropeanPolcap 1024 112 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C9
SYMATTR Value 10n
SYMBOL Misc\\EuropeanResistor 896 128 M90
WINDOW 0 29 54 VBottom 0
WINDOW 3 -18 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 1008 160 R90
WINDOW 0 31 58 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 816 64 R270
WINDOW 0 5 56 VTop 0
WINDOW 3 58 47 VBottom 0
SYMATTR InstName R12
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 1072 -224 M0
WINDOW 0 18 73 VLeft 0
WINDOW 3 -28 34 Left 0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 944 -112 R180
WINDOW 0 15 45 VRight 0
WINDOW 3 33 75 Left 0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 960 -112 M180
WINDOW 0 15 76 VLeft 0
WINDOW 3 33 75 Left 0
SYMATTR InstName R11
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 960 16 R270
WINDOW 0 2 56 VTop 0
WINDOW 3 14 111 VBottom 0
SYMATTR InstName R13
SYMATTR Value 1k
SYMBOL cap 992 -80 R270
WINDOW 0 -13 7 VTop 0
WINDOW 3 8 65 VBottom 0
SYMATTR InstName C1
SYMATTR Value 2.2n
SYMBOL Misc\\EuropeanResistor 1360 16 M0
WINDOW 0 16 42 VRight 0
WINDOW 3 -19 145 Left 0
SYMATTR InstName R14
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1312 16 M0
WINDOW 0 15 36 VRight 0
WINDOW 3 0 144 Left 0
SYMATTR InstName R15
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1680 -224 M0
WINDOW 0 16 42 VRight 0
WINDOW 3 -41 -55 Left 0
SYMATTR InstName R16
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1632 -224 M0
WINDOW 0 15 36 VRight 0
WINDOW 3 24 -13 Left 0
SYMATTR InstName R17
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1696 16 R0
WINDOW 0 16 69 VLeft 0
WINDOW 3 18 146 Left 0
SYMATTR InstName R18
SYMATTR Value 10k
SYMBOL voltage 1744 -64 R0
WINDOW 0 -14 58 Left 0
WINDOW 3 -269 -254 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(-1 1 0 1u 1u 50u 100u)
SYMBOL Misc\\EuropeanResistor 1728 -224 M0
WINDOW 0 16 41 VRight 0
WINDOW 3 -10 -15 Left 0
SYMATTR InstName R19
SYMATTR Value 10k
SYMBOL Opamps\\opamp2 1552 -64 M0
WINDOW 0 -19 63 Left 0
WINDOW 3 5 104 Invisible 0
SYMATTR InstName U3
SYMATTR Value LF353/NS
SYMATTR SpiceModel LF353/NS
SYMBOL Misc\\EuropeanResistor 1680 16 M0
WINDOW 0 16 42 VRight 0
WINDOW 3 -19 145 Left 0
SYMATTR InstName R20
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1632 16 M0
WINDOW 0 15 36 VRight 0
WINDOW 3 0 144 Left 0
SYMATTR InstName R21
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 960 352 R0
WINDOW 0 18 36 VRight 0
SYMATTR InstName R22
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 944 352 M0
WINDOW 0 14 76 VLeft 0
SYMATTR InstName R23
SYMATTR Value 10k
SYMBOL cap 992 320 M90
WINDOW 0 10 6 VBottom 0
WINDOW 3 -26 60 VTop 0
SYMATTR InstName C4
SYMATTR Value 2.2n
SYMBOL Misc\\EuropeanResistor 960 256 R270
WINDOW 0 0 58 VTop 0
WINDOW 3 6 109 VBottom 0
SYMATTR InstName R25
SYMATTR Value 1k
SYMBOL Misc\\cell 1520 416 M90
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 -37 33 VRight 0
WINDOW 3 38 37 VRight 0
SYMATTR InstName V3
SYMATTR Value 30
SYMBOL Misc\\cell 1424 416 M90
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 -35 27 VRight 0
WINDOW 3 34 35 VRight 0
SYMATTR InstName V4
SYMATTR Value 30
SYMBOL Misc\\EuropeanResistor 912 -240 R90
WINDOW 0 30 52 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R26
SYMATTR Value 1k
SYMBOL cap 1520 -96 R270
WINDOW 0 21 7 VTop 0
WINDOW 3 46 59 VBottom 0
SYMATTR InstName C11
SYMATTR Value 27p
SYMBOL Misc\\EuropeanResistor 1088 352 M0
WINDOW 0 18 73 VLeft 0
WINDOW 3 -26 87 Left 0
SYMATTR InstName R24
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 912 480 M270
WINDOW 0 1 54 VTop 0
WINDOW 3 56 75 VBottom 0
SYMATTR InstName R27
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 1488 -112 R0
WINDOW 0 18 73 VLeft 0
WINDOW 3 -52 43 Left 0
SYMATTR InstName R29
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor 1168 -112 R0
WINDOW 0 18 73 VLeft 0
WINDOW 3 -49 67 Left 0
SYMATTR InstName R28
SYMATTR Value 220k
SYMBOL cap 1200 -96 R270
WINDOW 0 21 7 VTop 0
WINDOW 3 46 59 VBottom 0
SYMATTR InstName C10
SYMATTR Value 27p
TEXT 720 -312 Left 0 !.tran 0 1.2m 0 100n uic
TEXT 464 -312 Left 0 !.four 1kHz I(R1)
TEXT 128 -344 Left 0 !.inc mylib\\lf353.mod\n.inc mylib\\tda8939.mod
TEXT 1456 -176 Left 0 ;LF353