Version 4
SHEET 1 2244 852
WIRE 1824 -160 1424 -160
WIRE 896 -96 816 -96
WIRE 1424 -80 1424 -160
WIRE 1424 -80 1296 -80
WIRE 1664 -80 1424 -80
WIRE 1120 -48 1072 -48
WIRE 896 -32 784 -32
WIRE 1872 -32 1840 -32
WIRE 1296 -16 1296 -80
WIRE 1664 -16 1552 -16
WIRE 784 0 784 -32
WIRE 1424 16 1424 -80
WIRE 1552 16 1552 -16
WIRE -48 32 -80 32
WIRE 528 32 496 32
WIRE -48 80 -48 32
WIRE -48 80 -272 80
WIRE 64 80 -48 80
WIRE 240 80 112 80
WIRE 368 80 240 80
WIRE 496 80 496 32
WIRE 496 80 368 80
WIRE -272 96 -272 80
WIRE 112 112 112 80
WIRE 240 112 240 80
WIRE 368 112 368 80
WIRE 496 112 496 80
WIRE 784 112 784 80
WIRE 64 128 64 80
WIRE 1296 128 1296 64
WIRE 1424 128 1424 80
WIRE 1552 128 1552 96
WIRE -272 224 -272 176
WIRE 64 240 64 176
WIRE 112 240 112 192
WIRE 112 240 64 240
WIRE 240 240 240 192
WIRE 240 240 112 240
WIRE 368 240 368 192
WIRE 368 240 240 240
WIRE 496 240 496 176
WIRE 496 240 368 240
WIRE 112 256 112 240
WIRE 1824 288 1424 288
WIRE -272 320 -272 304
WIRE 896 352 816 352
WIRE 1424 368 1424 288
WIRE 1424 368 1296 368
WIRE 1664 368 1424 368
WIRE 1120 400 1072 400
WIRE 896 416 784 416
WIRE 1872 416 1840 416
WIRE 1296 432 1296 368
WIRE 1664 432 1552 432
WIRE 784 448 784 416
WIRE -128 464 -128 448
WIRE 144 464 144 448
WIRE 1424 464 1424 368
WIRE 1552 464 1552 432
WIRE 784 560 784 528
WIRE -128 576 -128 544
WIRE 144 576 144 544
WIRE 1296 576 1296 512
WIRE 1424 576 1424 528
WIRE 1552 576 1552 544
FLAG -272 320 0
FLAG -128 576 0
FLAG 144 576 0
FLAG -128 448 vc
FLAG 144 448 vmod
FLAG 112 256 0
FLAG -80 32 vin
IOPIN -80 32 In
FLAG 528 32 vout
IOPIN 528 32 Out
FLAG 816 352 vout
IOPIN 816 352 In
FLAG 1120 400 pk_out
FLAG 784 560 0
FLAG 816 -96 vin
IOPIN 816 -96 In
FLAG 1120 -48 pk_in
FLAG 784 112 0
FLAG 1824 288 peak_out
IOPIN 1824 288 Out
FLAG 1872 416 pk_out1
FLAG 1552 576 0
FLAG 1296 576 0
FLAG 1424 576 0
FLAG 1824 -160 peak_in
IOPIN 1824 -160 Out
FLAG 1872 -32 pk_in1
FLAG 1552 128 0
FLAG 1296 128 0
FLAG 1424 128 0
SYMBOL res 224 96 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL ind 352 96 R0
SYMATTR InstName L1
SYMATTR Value 5µ
SYMBOL cap 480 112 R0
SYMATTR InstName C1
SYMATTR Value 5.07n
SYMBOL g 112 96 R0
SYMATTR InstName G1
SYMATTR Value 1m
SYMBOL voltage -128 448 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(0 1 1.00e6)
SYMBOL voltage 144 448 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value SINE(0 1 5k)
SYMBOL voltage -272 208 R0
WINDOW 3 31 86 Left 0
WINDOW 123 31 111 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 0
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMBOL bv -272 80 R0
SYMATTR InstName B1
SYMATTR Value V=V(vc)*(1+0.5*V(vmod))
SYMBOL SpecialFunctions\\sample 976 384 R0
SYMATTR InstName A20
SYMBOL bv 784 432 R0
SYMATTR InstName B20
SYMATTR Value V=-ddt(V(vout)) tripdt=2n
SYMBOL SpecialFunctions\\sample 976 -64 R0
SYMATTR InstName A10
SYMBOL bv 784 -16 R0
SYMATTR InstName B10
SYMATTR Value V=-ddt(V(vin)) tripdt=2n
SYMBOL cap 1408 464 R0
SYMATTR InstName C21
SYMATTR Value 1n
SYMBOL SpecialFunctions\\sample 1744 400 R0
SYMATTR InstName A21
SYMBOL bv 1552 448 R0
SYMATTR InstName B22
SYMATTR Value V=-ddt(V(vout))
SYMBOL bi2 1296 432 R0
WINDOW 3 -27 194 Left 0
SYMATTR Value I=1m*(V(pk_out)-V(pk_out1))
SYMATTR InstName B21
SYMBOL cap 1408 16 R0
SYMATTR InstName C11
SYMATTR Value 1n
SYMBOL SpecialFunctions\\sample 1744 -48 R0
SYMATTR InstName A11
SYMBOL bv 1552 0 R0
SYMATTR InstName B12
SYMATTR Value V=-ddt(V(vin))
SYMBOL bi2 1296 -16 R0
WINDOW 3 -27 194 Left 0
SYMATTR Value I=1m*(V(pk_in)-V(pk_in1))
SYMATTR InstName B11
TEXT -264 -144 Left 0 ;.ac lin 201 900k 1100k
TEXT -264 -224 Left 0 !.tran 0 1m 0 5n
TEXT -264 -192 Left 0 !.options plotwinsize=0
TEXT 16 -224 Left 0 ;GROUP DELAY SIMULATION\n \nAC-analysis: group delay 10.1us @center, 9us @+/-5kHz\nTRAN-analysis: group delay 9.75us
TEXT 768 -208 Left 0 ;PEAK DETECTORS WITH HOLD
TEXT 1096 360 Left 0 ;sampled out
TEXT 1088 -80 Left 0 ;sampled in
TEXT 1440 344 Left 0 !.ic V(peak_out)=0
TEXT 1312 -208 Left 0 ;LINEAR PEAK INTREPOLATOR
TEXT 1440 -112 Left 0 !.ic V(peak_in)=0
TEXT 88 0 Left 0 ;BANDPASS FILTER 1MHz BW=31.5kHz
TEXT 16 -96 Left 0 ;http://www.radiolab.com.au/DesignFile/DN004.pdf
RECTANGLE Normal 1984 656 720 -240