Version 4
SHEET 1 2056 900
WIRE 96 -528 48 -528
WIRE 288 -528 96 -528
WIRE 448 -528 288 -528
WIRE 608 -528 448 -528
WIRE 768 -528 608 -528
WIRE 896 -528 768 -528
WIRE 1312 -528 896 -528
WIRE 1600 -528 1312 -528
WIRE 96 -512 96 -528
WIRE 288 -512 288 -528
WIRE 608 -512 608 -528
WIRE 1312 -512 1312 -528
WIRE 1600 -480 1600 -528
WIRE 1312 -400 1312 -432
WIRE 448 -384 448 -528
WIRE 608 -352 608 -432
WIRE 1008 -352 608 -352
WIRE 1248 -352 1008 -352
WIRE 96 -336 96 -432
WIRE 384 -336 96 -336
WIRE 608 -304 608 -352
WIRE 288 -256 288 -432
WIRE 544 -256 288 -256
WIRE 1008 -256 1008 -352
WIRE 1040 -256 1008 -256
WIRE 1152 -256 1104 -256
WIRE 1312 -256 1312 -304
WIRE 1312 -256 1232 -256
WIRE 448 -176 448 -288
WIRE 528 -176 448 -176
WIRE 608 -176 608 -208
WIRE 608 -176 528 -176
WIRE 1056 -144 576 -144
WIRE 576 -64 576 -144
WIRE 672 -64 576 -64
WIRE 832 -64 736 -64
WIRE 864 -64 832 -64
WIRE 960 -64 944 -64
WIRE 48 -16 48 -528
WIRE 336 -16 48 -16
WIRE 912 0 912 -16
WIRE 1056 0 1056 -144
WIRE 768 32 768 -528
WIRE 832 48 832 -64
WIRE 832 48 800 48
WIRE 576 64 576 -64
WIRE 576 64 480 64
WIRE 736 64 576 64
WIRE 912 80 912 64
WIRE 912 80 800 80
WIRE 928 80 912 80
WIRE 1056 80 1056 64
WIRE 1056 80 1008 80
WIRE 1072 80 1056 80
WIRE 1312 80 1312 -256
WIRE 1312 80 1152 80
WIRE 480 96 480 64
WIRE 48 144 48 -16
WIRE 96 144 96 -336
WIRE 288 144 288 -256
WIRE 336 144 336 -16
WIRE -48 208 -144 208
WIRE 0 208 -48 208
WIRE 48 208 0 208
WIRE 480 208 480 176
WIRE 480 208 336 208
WIRE 544 208 480 208
WIRE 672 208 624 208
WIRE 848 208 752 208
WIRE 912 208 848 208
WIRE 1024 208 992 208
WIRE 1312 208 1312 80
WIRE 1312 208 1024 208
WIRE 1440 208 1312 208
WIRE -144 240 -144 208
WIRE 48 240 48 224
WIRE 192 240 96 240
WIRE 288 240 192 240
WIRE -48 304 -48 208
WIRE 0 304 0 208
WIRE 672 304 672 208
WIRE 784 304 752 304
WIRE 848 304 848 208
WIRE 944 304 848 304
WIRE 1024 304 1024 208
WIRE 1024 304 1008 304
WIRE 1600 304 1600 -400
WIRE 1600 304 1568 304
WIRE 48 320 48 240
WIRE 336 320 336 240
WIRE 336 320 48 320
WIRE 1600 352 1600 304
WIRE 1600 352 1424 352
WIRE -144 368 -144 320
WIRE 480 368 480 208
WIRE 528 368 528 -176
WIRE 1424 368 1424 352
WIRE 848 400 848 384
WIRE -144 464 -144 448
WIRE -48 464 -48 384
WIRE -48 464 -144 464
WIRE 0 464 0 368
WIRE 0 464 -48 464
WIRE 336 464 0 464
WIRE 480 464 480 448
WIRE 480 464 336 464
WIRE 528 464 528 448
WIRE 528 464 480 464
WIRE 848 464 528 464
WIRE 1600 464 1600 352
WIRE -48 480 -48 464
WIRE 336 480 336 464
WIRE 1312 480 1312 208
WIRE 1424 528 1424 448
WIRE 1424 528 1376 528
WIRE 192 544 192 240
WIRE 1424 560 1424 528
WIRE 336 592 336 560
WIRE 336 592 256 592
WIRE 336 608 336 592
WIRE 1312 656 1312 576
WIRE 1424 656 1424 624
WIRE 192 672 192 640
WIRE 48 752 48 320
WIRE 192 752 48 752
WIRE 336 752 336 736
WIRE 336 752 192 752
WIRE 768 752 768 96
WIRE 768 752 336 752
WIRE 880 752 768 752
WIRE 1312 752 1312 736
WIRE 1312 752 880 752
WIRE 1424 752 1424 736
WIRE 1424 752 1312 752
WIRE 1600 752 1600 544
WIRE 1600 752 1424 752
FLAG -48 480 0
FLAG 1440 208 Out
IOPIN 1440 208 BiDir
FLAG 1568 304 0
FLAG 1008 -352 Out2
IOPIN 1008 -352 BiDir
FLAG 896 -528 +15
IOPIN 896 -528 BiDir
FLAG 880 752 -15
IOPIN 880 752 BiDir
FLAG 1104 304 NFB
IOPIN 1104 304 BiDir
FLAG 912 -16 0
FLAG 960 -64 0
SYMBOL res -128 464 R180
WINDOW 0 36 69 Left 2
WINDOW 3 35 39 Left 2
SYMATTR InstName R1
SYMATTR Value 56
SYMBOL res -32 400 R180
WINDOW 0 36 69 Left 2
WINDOW 3 35 39 Left 2
SYMATTR InstName R2
SYMATTR Value 47k
SYMBOL res 80 -528 R0
SYMATTR InstName R3
SYMATTR Value 1k5
SYMBOL cap -16 304 R0
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL res 272 -528 R0
SYMATTR InstName R4
SYMATTR Value 1k51
SYMBOL res 176 656 R0
SYMATTR InstName R9
SYMATTR Value 47
SYMBOL res 496 352 M0
SYMATTR InstName R8
SYMATTR Value 180
SYMBOL npn 384 -384 R0
SYMATTR InstName Q3
SYMATTR Value BC846B
SYMBOL npn 544 -304 R0
SYMATTR InstName Q4
SYMATTR Value BC846B
SYMBOL res 512 352 R0
SYMATTR InstName R11
SYMATTR Value 4k7
SYMBOL res 592 -528 R0
SYMATTR InstName R10
SYMATTR Value 1k5
SYMBOL pnp 1248 -304 M180
WINDOW 0 65 71 Left 2
WINDOW 3 53 34 Left 2
SYMATTR InstName Q5
SYMATTR Value BCP53-10
SYMBOL res 1296 -528 R0
SYMATTR InstName R17
SYMATTR Value 47
SYMBOL res 768 192 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 47k
SYMBOL res 768 288 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 4k7
SYMBOL cap 848 288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 1n5
SYMBOL res 832 288 R0
SYMATTR InstName R14
SYMATTR Value 8k2
SYMBOL cap 832 400 R0
WINDOW 3 42 43 Left 2
SYMATTR Value 1µ
SYMATTR InstName C8
SYMBOL res 1008 192 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R15
SYMATTR Value 68k
SYMBOL cap 1008 288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 47n
SYMBOL cap 1104 -272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C10
SYMATTR Value 270p
SYMBOL res 1248 -272 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 330
SYMBOL npn 1376 480 M0
SYMATTR InstName Q1
SYMATTR Value BCP56-10
SYMBOL res 1328 640 M0
SYMATTR InstName R18
SYMATTR Value 47
SYMBOL res 1408 352 R0
SYMATTR InstName R19
SYMATTR Value 27k
SYMBOL voltage 1600 448 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 18
SYMBOL res 320 464 R0
SYMATTR InstName R5
SYMATTR Value 15k
SYMBOL voltage -144 224 M0
WINDOW 0 35 54 Left 2
WINDOW 123 -153 57 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 24 96 Invisible 2
SYMATTR InstName V1
SYMATTR Value2 AC 1
SYMATTR Value SINE(0 50m 20k)
SYMBOL diode 320 608 R0
WINDOW 3 85 51 Left 2
SYMATTR Value 1N4148C
SYMATTR InstName D1
SYMBOL diode 320 672 R0
WINDOW 3 84 28 Left 2
SYMATTR Value 1N4148C
SYMATTR InstName D2
SYMBOL diode 1408 560 R0
SYMATTR InstName D3
SYMATTR Value 1N4148C
SYMBOL res 1408 640 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL npn 256 544 M0
SYMATTR InstName Q2
SYMATTR Value BCP56-10
SYMBOL res 1024 64 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R21
SYMATTR Value 5meg1
SYMBOL cap 928 64 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C3
SYMATTR Value 2µ
SYMBOL EXTRA\\AudioOpamp\\TI\ —\ êîïèÿ\\TL071 768 64 M0
WINDOW 0 -83 56 Left 2
WINDOW 3 -111 97 Left 2
SYMATTR InstName U1
SYMBOL voltage 1600 -496 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 18
SYMBOL Contrib\\TI\\JFET\\JFEx140 48 208 R0
WINDOW 3 119 -154 Top 2
SYMATTR InstName U2
SYMBOL Contrib\\TI\\JFET\\JFEx140 336 208 M0
WINDOW 3 151 -196 Top 2
SYMATTR InstName U3
SYMBOL res 464 80 R0
SYMATTR InstName R20
SYMATTR Value 56k
SYMBOL res 1120 320 M270
WINDOW 0 28 56 VTop 2
WINDOW 3 4 56 VBottom 2
SYMATTR InstName R25
SYMATTR Value 47
SYMBOL res 1168 64 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 5meg1
SYMBOL cap 1072 64 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value 2µ
SYMBOL res 960 -80 R90
WINDOW 0 -74 63 VBottom 2
WINDOW 3 -44 56 VTop 2
SYMATTR InstName R23
SYMATTR Value 1meg
SYMBOL cap 672 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 1µ
SYMBOL res 640 192 R90
WINDOW 0 4 56 VBottom 2
WINDOW 3 28 56 VTop 2
SYMATTR InstName R22
SYMATTR Value 1
TEXT -256 -24 Left 2 !;op
TEXT -576 -184 Left 2 !;tran 0 38m 19m 10ns
TEXT -568 64 Left 2 !.OPTIONS numdgt=7
TEXT -568 -144 Left 2 !.four 20kHz 20 v(Out)
TEXT -568 -96 Left 2 !.ac dec 100 1 100meg
TEXT -608 24 Left 2 !.OPTIONS plotwinsize=0
TEXT -600 -248 Left 2 ;.step param R list 56k 10000meg