Version 4
SHEET 1 1880 1044
WIRE 128 -160 0 -160
WIRE 320 -160 128 -160
WIRE 464 -160 320 -160
WIRE 640 -160 464 -160
WIRE 1152 -160 640 -160
WIRE 0 -144 0 -160
WIRE 1152 -144 1152 -160
WIRE 640 -128 640 -160
WIRE 1424 -96 1408 -96
WIRE 1520 -96 1504 -96
WIRE 128 -80 128 -160
WIRE 320 -80 320 -160
WIRE 1408 -80 1408 -96
WIRE 0 -48 0 -80
WIRE 1152 -48 1152 -64
WIRE 640 0 640 -48
WIRE 1008 0 640 0
WIRE 1088 0 1008 0
WIRE 464 16 464 -160
WIRE 640 16 640 0
WIRE 1008 32 1008 0
WIRE 128 64 128 0
WIRE 400 64 128 64
WIRE 752 64 704 64
WIRE 1008 112 1008 96
WIRE 1040 112 1008 112
WIRE 1152 112 1152 48
WIRE 1152 112 1120 112
WIRE 464 128 464 112
WIRE 544 128 464 128
WIRE 640 128 640 112
WIRE 640 128 544 128
WIRE -672 160 -688 160
WIRE -576 160 -608 160
WIRE -560 160 -576 160
WIRE -464 160 -496 160
WIRE 320 176 320 0
WIRE 752 176 752 64
WIRE 752 176 320 176
WIRE -48 192 -48 160
WIRE -208 208 -368 208
WIRE -368 224 -368 208
WIRE -208 224 -208 208
WIRE 128 224 128 64
WIRE 320 224 320 176
WIRE 1632 224 1440 224
WIRE 1744 224 1632 224
WIRE -688 240 -688 160
WIRE -672 240 -688 240
WIRE -576 240 -576 160
WIRE -576 240 -592 240
WIRE -560 240 -576 240
WIRE -464 240 -464 160
WIRE -464 240 -480 240
WIRE -416 240 -464 240
WIRE -688 272 -688 240
WIRE -464 272 -464 240
WIRE 1376 272 1360 272
WIRE 1440 272 1440 224
WIRE 1440 272 1424 272
WIRE 1456 272 1440 272
WIRE 1520 272 1504 272
WIRE -208 288 -208 272
WIRE -160 288 -208 288
WIRE -48 288 -48 256
WIRE -48 288 -80 288
WIRE -16 288 -48 288
WIRE 80 288 -16 288
WIRE 480 288 368 288
WIRE 624 288 480 288
WIRE 704 288 624 288
WIRE 848 288 784 288
WIRE 880 288 848 288
WIRE 992 288 960 288
WIRE 1024 288 992 288
WIRE 1152 288 1152 112
WIRE 1152 288 1136 288
WIRE 1216 288 1152 288
WIRE 1360 288 1360 272
WIRE 1360 288 1296 288
WIRE 1632 288 1632 224
WIRE 1632 288 1600 288
WIRE 1664 288 1632 288
WIRE -208 304 -208 288
WIRE 1360 304 1360 288
WIRE 1408 304 1360 304
WIRE 1520 304 1520 272
WIRE 1520 304 1456 304
WIRE 1664 304 1664 288
WIRE -416 320 -416 288
WIRE -368 320 -368 304
WIRE -368 320 -416 320
WIRE -16 320 -16 288
WIRE 1456 320 1456 304
WIRE 1600 320 1600 288
WIRE -368 336 -368 320
WIRE 1408 336 1408 304
WIRE 128 352 128 320
WIRE 224 352 128 352
WIRE 320 352 320 320
WIRE 320 352 224 352
WIRE -464 368 -464 352
WIRE -288 368 -368 368
WIRE -208 368 -208 352
WIRE -208 368 -240 368
WIRE 624 368 624 288
WIRE 656 368 624 368
WIRE 848 368 848 288
WIRE 848 368 800 368
WIRE 880 368 848 368
WIRE 992 368 992 288
WIRE 992 368 944 368
WIRE -368 384 -368 368
WIRE -880 400 -896 400
WIRE -784 400 -800 400
WIRE -688 400 -688 352
WIRE -688 400 -704 400
WIRE -464 400 -688 400
WIRE -416 400 -464 400
WIRE 544 400 544 128
WIRE 624 400 624 368
WIRE 848 400 848 368
WIRE 1600 400 1600 384
WIRE 1632 400 1600 400
WIRE 1664 400 1664 384
WIRE 1664 400 1632 400
WIRE 1408 416 1408 384
WIRE 1456 416 1456 400
WIRE 1456 416 1408 416
WIRE 1632 416 1632 400
WIRE -16 432 -16 400
WIRE 1456 432 1456 416
WIRE 352 464 352 448
WIRE 1264 464 1264 432
WIRE -416 480 -416 448
WIRE -368 480 -368 464
WIRE -368 480 -416 480
WIRE -368 496 -368 480
WIRE 544 512 544 480
WIRE 624 512 624 480
WIRE -288 528 -368 528
WIRE -208 528 -208 368
WIRE -208 528 -240 528
WIRE 224 528 224 352
WIRE 1152 528 1152 288
WIRE -368 544 -368 528
WIRE -464 560 -464 400
WIRE -416 560 -464 560
WIRE 848 560 848 544
WIRE 352 576 352 544
WIRE 352 576 288 576
WIRE 1264 576 1264 544
WIRE 1264 576 1216 576
WIRE 352 592 352 576
WIRE 1264 592 1264 576
WIRE 1456 624 1456 608
WIRE 1456 624 1440 624
WIRE -416 640 -416 608
WIRE -368 640 -368 624
WIRE -368 640 -416 640
WIRE 1456 640 1456 624
WIRE -368 656 -368 640
WIRE 0 656 0 624
WIRE 224 656 224 624
WIRE 1152 656 1152 624
WIRE -688 736 -720 736
WIRE -576 736 -608 736
WIRE -544 736 -576 736
WIRE -368 736 -480 736
WIRE 0 752 0 720
WIRE 224 752 224 736
WIRE 224 752 0 752
WIRE 352 752 352 720
WIRE 352 752 224 752
WIRE 1152 752 1152 736
WIRE 1152 752 352 752
WIRE 1264 752 1264 736
WIRE 1264 752 1152 752
WIRE -576 800 -576 736
WIRE -480 800 -576 800
WIRE -368 816 -368 736
WIRE -368 816 -416 816
WIRE -320 816 -368 816
WIRE -192 816 -240 816
WIRE -688 832 -720 832
WIRE -528 832 -608 832
WIRE -480 832 -528 832
WIRE -528 848 -528 832
WIRE -192 880 -224 880
WIRE -192 912 -224 912
WIRE -528 928 -528 912
FLAG -16 432 0
FLAG 544 512 0
FLAG 0 -48 0
FLAG 0 624 0
FLAG 1264 432 0
FLAG -48 160 0
FLAG 1744 224 out
IOPIN 1744 224 Out
FLAG 1456 432 0
FLAG 1136 288 A
FLAG 1520 -96 A
FLAG 1408 0 0
FLAG 1408 -96 x
FLAG 1440 624 0
FLAG 1456 544 +v
FLAG 1152 -160 +v
FLAG 1152 752 -v
FLAG 1456 704 -v
FLAG -224 880 A
FLAG 80 224 +v
FLAG 368 224 +v
FLAG 368 320 -v
FLAG 80 320 -v
FLAG 1632 416 0
FLAG 352 448 0
FLAG -896 400 0
FLAG -368 496 0
FLAG -464 368 0
FLAG -368 336 0
FLAG -688 400 gen
FLAG -368 656 0
FLAG 624 512 0
FLAG 1024 288 x
FLAG 848 560 0
FLAG -448 848 -v
FLAG -448 784 +v
FLAG 480 288 DC-Servo
FLAG -224 912 DC-Servo
FLAG -528 928 0
FLAG -720 832 x
FLAG -720 736 0
FLAG -192 816 DC-Servo
DATAFLAG -192 880 ""
DATAFLAG -192 912 ""
SYMBOL npn 288 528 M0
SYMATTR InstName Q1
SYMATTR Value BCP56-16
SYMBOL res -32 304 R0
SYMATTR InstName R1
SYMATTR Value 150k
SYMBOL res 112 -96 R0
SYMATTR InstName R2
SYMATTR Value 1k5
SYMBOL res 208 640 R0
SYMATTR InstName R3
SYMATTR Value 47
SYMBOL diode 336 592 R0
WINDOW 0 49 13 Left 2
WINDOW 3 45 43 Left 2
SYMATTR InstName D1
SYMATTR Value KD521A
SYMBOL diode 336 656 R0
WINDOW 0 46 13 Left 2
WINDOW 3 44 49 Left 2
SYMATTR InstName D2
SYMATTR Value KD521A
SYMBOL res 304 -96 R0
SYMATTR InstName R4
SYMATTR Value 1k5
SYMBOL res 336 448 R0
SYMATTR InstName R5
SYMATTR Value 15k
SYMBOL npn 400 16 R0
SYMATTR InstName Q2
SYMATTR Value BC846B
SYMBOL npn 704 16 M0
SYMATTR InstName Q3
SYMATTR Value BC846B
SYMBOL res 528 384 R0
WINDOW 0 -27 40 Left 2
WINDOW 3 -44 71 Left 2
SYMATTR InstName R7
SYMATTR Value 4k7
SYMBOL res 624 -144 R0
SYMATTR InstName R8
SYMATTR Value 1k5
SYMBOL cap -16 -144 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL cap -16 656 R0
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL pnp 1088 48 M180
SYMATTR InstName Q4
SYMATTR Value BCP53-16
SYMBOL res 1136 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 330
SYMBOL res 1248 448 R0
SYMATTR InstName R14
SYMATTR Value 27k
SYMBOL res 1248 640 R0
SYMATTR InstName R15
SYMATTR Value 1k
SYMBOL res 1136 -160 R0
SYMATTR InstName R16
SYMATTR Value 47
SYMBOL npn 1216 528 M0
SYMATTR InstName Q5
SYMATTR Value BCP56-16
SYMBOL res 1136 640 R0
SYMATTR InstName R17
SYMATTR Value 47
SYMBOL res 1312 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R18
SYMATTR Value 470
SYMBOL ind -176 304 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName Lpickup
SYMATTR Value 450m
SYMATTR SpiceLine Rser=750
SYMBOL cap -64 192 R0
SYMATTR InstName Ccable
SYMATTR Value 12p
SYMBOL cap 1024 32 M0
SYMATTR InstName C6
SYMATTR Value 270p
SYMBOL SWeq 1376 272 R0
WINDOW 123 1 -21 Left 2
SYMATTR Value x={q}
SYMATTR InstName U3
SYMBOL SWeq 1504 272 R180
WINDOW 123 3 22 Left 2
SYMATTR Value2 y=2
SYMATTR Value x={q}
SYMATTR InstName U4
SYMBOL e 1456 304 R0
WINDOW 0 8 100 Left 2
WINDOW 3 -238 179 Invisible 2
SYMATTR InstName IEC_A
SYMATTR Value Laplace=7.4G*(s^4)/(((s+129.4)^2)*(s+676.7)*(s+4636)*(s+76617)^2)
SYMBOL voltage 1408 -96 M90
WINDOW 0 -33 55 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vi
SYMATTR Value ""
SYMATTR Value2 AC {u(-prb)}
SYMBOL current 1408 0 R180
WINDOW 0 -54 42 Left 2
WINDOW 3 24 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Ii
SYMATTR Value ""
SYMATTR Value2 AC {u(prb)}
SYMBOL Misc\\cell 1456 544 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 18
SYMBOL Misc\\cell 1456 640 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 18
SYMBOL JFEx140 80 288 R0
WINDOW 0 85 8 Bottom 2
WINDOW 3 118 -47 Top 2
SYMATTR InstName U6
SYMBOL JFEx140 368 288 M0
WINDOW 0 89 8 Bottom 2
WINDOW 3 116 10 Top 2
SYMATTR InstName U7
SYMBOL res 1648 288 R0
SYMATTR InstName Rvolume
SYMATTR Value 22k
SYMBOL cap 1616 320 M0
WINDOW 0 -7 8 Left 2
SYMATTR InstName Ccable_1
SYMATTR Value 330p
SYMBOL voltage -688 400 M270
WINDOW 39 24 152 Left 2
WINDOW 3 -65 92 VLeft 2
WINDOW 0 -43 64 VLeft 2
SYMATTR Value SINE(0 1 1e3)
SYMATTR InstName V1
SYMATTR Value2 AC {inv(abs(prb))}
SYMBOL voltage -784 400 M270
WINDOW 123 24 124 Left 2
WINDOW 39 24 152 Left 2
WINDOW 0 -44 70 VLeft 2
WINDOW 3 -64 190 VLeft 2
SYMATTR InstName V2
SYMATTR Value SINE(0 0 8e3)
SYMBOL e -368 368 R0
WINDOW 3 6 125 Invisible 2
WINDOW 0 6 97 Left 2
SYMATTR Value Laplace=127m07*(7950u+1/(s+1m))*(1+3180u*s)*(1+75u*s)/((1+318u*s)*(1+3u18*s))
SYMATTR InstName InvRIAA-78
SYMBOL res -688 256 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R?1
SYMATTR Value 1.59Meg
SYMBOL cap -672 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C?1
SYMATTR Value 2n
SYMBOL res -576 256 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R?3
SYMATTR Value 133k9
SYMBOL cap -560 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C?3
SYMATTR Value 560p
SYMBOL res -480 256 R0
WINDOW 0 -69 48 Left 2
WINDOW 3 -75 76 Left 2
SYMATTR InstName Rload
SYMATTR Value 1k102
SYMBOL e -368 208 R0
SYMATTR InstName E1
SYMATTR Value 1
SYMBOL res -704 256 R0
WINDOW 0 -60 30 Left 2
WINDOW 3 -55 62 Left 2
SYMATTR InstName Rgen
SYMATTR Value 300
SYMBOL ZZZ\\switch\\SWeq -208 224 R90
WINDOW 38 34 11 VRight 1
SYMATTR SpiceModel SW_TRAN
SYMATTR InstName U1
SYMBOL ZZZ\\switch\\SWeq -208 352 R270
WINDOW 38 35 -66 VRight 1
SYMATTR SpiceModel SW_AC
SYMATTR InstName U2
SYMBOL e -368 528 R0
WINDOW 3 -500 165 Invisible 2
WINDOW 0 5 96 Left 2
SYMATTR Value Laplace=1m0104*(1+3180u*s)*(1+75u*s)/((1+318u*s)*(1+3u18*s))
SYMATTR InstName InvRIAA
SYMBOL SWeq -288 368 R0
WINDOW 123 15 14 Left 1
WINDOW 38 2 -13 Left 1
SYMATTR Value x={r}
SYMATTR InstName U5
SYMBOL SWeq -288 528 R0
WINDOW 123 14 12 Left 1
WINDOW 38 7 -15 Left 1
SYMATTR Value2 y=2
SYMATTR Value x={r}
SYMATTR InstName U8
SYMBOL res 608 384 R0
SYMATTR InstName R6
SYMATTR Value 180
SYMBOL res 800 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 47k
SYMBOL res 752 352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 1k6
SYMBOL res 976 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 68k
SYMBOL res 832 384 R0
SYMATTR InstName R12
SYMATTR Value 8k2
SYMBOL cap 800 352 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1n5
SYMBOL cap 832 544 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 1µ
SYMBOL cap 944 352 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 47n
SYMBOL diode 1248 592 R0
WINDOW 0 46 13 Left 2
WINDOW 3 44 49 Left 2
SYMATTR InstName D3
SYMATTR Value KD521A
SYMBOL OpAmps\\UniversalOpAmp2 -448 816 R0
SYMATTR InstName U9
SYMBOL cap -480 720 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 1µ
SYMBOL res -592 720 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R19
SYMATTR Value 1Meg
SYMBOL res -592 816 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R20
SYMATTR Value 1Meg
SYMBOL cap -512 912 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C8
SYMATTR Value 1µ
SYMBOL res -224 800 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R21
SYMATTR Value 56k
TEXT -640 -384 Left 2 !.options plotwinsize=0 numdgt=7
TEXT -640 -184 Left 2 !.ac dec 99 1e0 1e5
TEXT -640 -352 Left 2 !.temp 42
TEXT -640 -304 Left 2 ;.tran 0 3e-3 1e-3 3e-8\n.four 1e3 20 V(out)
TEXT -736 -304 Left 2 ;1 kHz
TEXT -640 -232 Left 2 ;.noise V(out) V1 dec 99 2e1 2e4
TEXT -640 -128 Left 2 ;.step param prb list -1 0 1
TEXT -640 -152 Left 2 !.param prb=0
TEXT -640 -32 Left 2 ;.tran 0 1.5e-1 1e-5 1e-8
TEXT -840 -80 Left 2 ;-1/(1-1/(2*(i(Vi)@1*v(x)@3-v(x)@1*i(Vi)@3)+v(x)@1+i(Vi)@3))
TEXT 1360 160 Left 2 ;.step param q list 1 2
TEXT 1360 72 Left 2 ;Noise measurement\nunweighted: q=1\nIEC-A weighted: q=2
TEXT 1360 184 Left 2 !.param q=1
TEXT -640 24 Left 2 !.meas TRAN Vout RMS V(out)
TEXT 32 512 Left 2 ;Ic(Q1) == 12mA
TEXT -760 104 Left 2 ;Inverse-RIAA by Lipshitz (JAES)
TEXT -704 528 Left 2 ;Reference selection:\nr=1: Inv.RIAA-78\nr=2: Inv.RIAA
TEXT -704 616 Left 2 !.param r=1