* Z:\home\khalils\Downloads\files\data\raw_asc\24cf5ac6ff44_filters_galore.asc
* Generated by LTspice 26.0.1 for Windows.
* Bessel-Thompson Lowpass\nMaximally flat delay
* Trise =4.4*RC of any section
* Gaussian Lowpass\nZero overshoot step response.
* Chebychev Lowpass\nEqual ripple pass band.
* Elliptic Lowpass
* Butterworth Lowpass\nFlat freq response
* Fo is the 3db freq of the filters and\nscales the L's and C's to produce that\nresponse. The actual values can be\nviewed in the spice netlist.
* The RC filter gives a realistic bandwidth limited\ninput signal. Set the desired risetime in the .param\nstatement.
* Ron Larson 8/6/04
* Bessel-Thompson Lowpass\nMaximally flat delay
* Gaussian Lowpass\nZero overshoot step response.
* Chebychev Lowpass\nEqual ripple pass band.
* Elliptic Lowpass
* Butterworth Lowpass\nFlat freq response
;tran 0 3n 0
R10 RCout N020 {1000*Ra}
C22 N037 outpute {C6e}
R13 outputbw 0 50
L8 N023 outputg {L4a}
C23 outpute 0 {C7e}
R21 eout 0 50
L4 N012 outputbt {L4}
C1 inputbt 0 {C1}
L11 N029 N030 {L3c}
R23 bwout 0 50
L14 N035 N036 {L2e}
C11 N020 0 {0.01*Ca}
L37 N006 N007 {L1bw}
C29 N014 0 {C2}
C24 N004 0 {C4bw}
C9 N018 0 {Ca}
C35 N024 0 {C1a}
L16 N037 outpute {L4e}
C4 N012 0 {C4}
R2 outputg 0 50
R5 outputc 0 50
C15 N029 0 {C3c}
R15 btout 0 50
L31 N033 N034 {L3c}
C42 N039 0 {C3e}
R24 N006 N005 50
L17 inputbw N002 {L1bw}
L12 N030 outputc {L4c}
C13 N030 0 {C4c}
R18 N024 N005 50
L21 N013 N014 {L1}
C25 N002 0 {C2bw}
R11 outpute 0 50
V2 N005 0 AC 1
C34 N026 0 {C3a}
C40 N039 N040 {C4e}
L24 N016 btout {L4}
C5 N023 0 {C4a}
R19 cout 0 50
C32 N027 0 {C4a}
L3 N011 N012 {L3}
C12 RCout 0 {0.001*Ca}
C27 inputbw 0 {C1bw}
C47 N009 0 {C4bw}
C50 N006 0 {C1bw}
C33 N025 0 {C2a}
R12 inpute N001 50
C46 eout 0 {C7e}
L30 N032 N033 {L2c}
C41 N038 N039 {C2e}
L22 N014 N015 {L2}
R6 inputc N001 50
C49 N008 0 {C3bw}
R22 N041 N005 50
C3 N011 0 {C3}
C6 N021 0 {C2a}
L36 N040 eout {L4e}
C10 N019 0 {0.1*Ca}
R17 gout 0 50
C39 N031 0 {C1c}
C2 N010 0 {C2}
C31 N013 0 {C1}
C17 N036 N037 {C4e}
L6 N021 N022 {L2a}
R20 N031 N005 50
C43 N038 0 {C1e}
C18 N035 N036 {C2e}
R14 inputbw N001 50
L26 N025 N026 {L2a}
C14 N028 0 {C2c}
L13 inpute N035 {L1e}
R7 N018 N017 1
L38 N007 N008 {L2bw}
C19 N036 0 {C3e}
C16 inputc 0 {C1c}
L25 N024 N025 {L1a}
L34 N038 N039 {L2e}
L5 inputg N021 {L1a}
R9 N020 N019 {100*Ra}
R16 N013 N005 50
C37 N032 0 {C2c}
L20 N004 outputbw {L4bw}
R4 inputbt N001 50
C36 N034 0 {C4c}
E1 N001 0 RCout 0 1
L35 N039 N040 {L3e}
L29 N031 N032 {L1c}
L1 inputbt N010 {L1}
L9 inputc N028 {L1c}
L2 N010 N011 {L2}
C20 N035 0 {C1e}
C21 N037 0 {C5e}
L28 N027 gout {L4a}
L32 N034 cout {L4c}
L10 N028 N029 {L2c}
L40 N009 bwout {L4bw}
L19 N003 N004 {L3bw}
L39 N008 N009 {L3bw}
L23 N015 N016 {L3}
R1 outputbt 0 50
V1 N017 0 PULSE(0 2 0 .01n .01n 1.5n 3n 1) Rser=.001
C44 N040 0 {C5e}
R3 inputg N001 50
C48 N007 0 {C2bw}
C7 N022 0 {C3a}
L18 N002 N003 {L2bw}
C45 N040 eout {C6e}
C28 N016 0 {C4}
L27 N026 N027 {L3a}
C8 inputg 0 {C1a}
R8 N019 N018 {10*Ra}
C30 N015 0 {C3}
L15 N036 N037 {L3e}
L33 N041 N038 {L1e}
L7 N022 N023 {L3a}
C26 N003 0 {C3bw}
C38 N033 0 {C3c}
.param Ra=1 Trise=.01n Ca=Trise/4.4
.param C1=292.1uF/Fo L1=2.16H/Fo C2=1.401mF/Fo L2=4.716H/Fo C3=2.321mF/Fo L3=6.908H/Fo C4=3.481mF/Fo L4=18H/Fo
.param C1a=220.7uF/Fo L1a=1.641H/Fo C2a=1.076mF/Fo L2a=3.701H/Fo C3a=1.888mF/Fo L3a=5.941H/Fo C4a=3.215mF/Fo L4a=17.95H/Fo
.param Fo=1e9
.param C1c=3.463mF/Fo L1c=12.15H/Fo C2c=6.057mF/Fo L2c=14.56H/Fo C3c=5.825mF/Fo L3c=15.14H/Fo C4c=4.859mF/Fo L4c=8.658H/Fo
.param C1e=2.976mF/Fo L1e=8.444H/Fo C2e=4.085mF/Fo L2e=5.064H/Fo C3e=2.773mF/Fo L3e=7.816H/Fo C4e=2.25mF/Fo L4e=8.983H/Fo C5e=3.903mF/Fo C6e=1.09mF/Fo C7e=2.471mF/Fo
.param C1bw=1.242mF/Fo L1bw=8.84H/Fo C2bw=5.292mF/Fo L2bw=15.61H/Fo C3bw=6.242mF/Fo L3bw=13.23H/Fo C4bw=3.536mF/Fo L4bw=3.104H/Fo
.ac oct 200 50meg 5G
.backanno
.end

* LTspice schematic (.asc):
Version 4
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WINDOW 3 5 56 VBottom 0
SYMATTR InstName L20
SYMATTR Value {L4bw}
SYMBOL ind 1024 128 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L23
SYMATTR Value {L3}
SYMBOL cap -720 -224 R0
WINDOW 3 34 105 Left 0
WINDOW 0 49 73 Left 0
SYMATTR Value {C2bw}
SYMATTR InstName C25
SYMBOL ind 1024 480 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L27
SYMATTR Value {L3a}
SYMBOL cap 848 784 R0
WINDOW 3 34 105 Left 0
WINDOW 0 49 73 Left 0
SYMATTR Value {C2c}
SYMATTR InstName C37
SYMBOL cap 656 -224 R0
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WINDOW 0 48 81 Left 0
SYMATTR Value {C1bw}
SYMATTR InstName C50
SYMBOL cap 1232 1104 R270
WINDOW 3 0 32 VBottom 0
WINDOW 0 32 32 VTop 0
SYMATTR Value {C6e}
SYMATTR InstName C45
SYMBOL res -896 448 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 50
SYMBOL ind -352 800 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L12
SYMATTR Value {L4c}
SYMBOL ind -544 800 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L11
SYMATTR Value {L3c}
SYMBOL ind 720 -208 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L37
SYMATTR Value {L1bw}
SYMBOL cap -528 1104 R270
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WINDOW 0 32 32 VTop 0
SYMATTR Value {C4e}
SYMATTR InstName C17
SYMBOL cap 848 112 R0
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WINDOW 0 49 73 Left 0
SYMATTR Value {C2}
SYMATTR InstName C29
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SYMATTR InstName R19
SYMATTR Value 50
SYMBOL res -896 -240 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R14
SYMATTR Value 50
SYMBOL cap 1152 112 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4}
SYMATTR InstName C28
SYMBOL cap -720 464 R0
WINDOW 3 34 105 Left 0
WINDOW 0 49 73 Left 0
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SYMATTR InstName C6
SYMBOL cap 992 112 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3}
SYMATTR InstName C30
SYMBOL cap 1152 -224 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4bw}
SYMATTR InstName C47
SYMBOL cap -1296 160 R0
WINDOW 3 -6 100 Left 0
WINDOW 0 39 28 Left 0
SYMATTR Value {0.001*Ca}
SYMATTR InstName C12
SYMBOL cap -416 784 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4c}
SYMATTR InstName C13
SYMBOL ind 1216 128 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L24
SYMATTR Value {L4}
SYMBOL cap 1040 1104 R270
WINDOW 3 0 32 VBottom 0
WINDOW 0 32 32 VTop 0
SYMATTR Value {C4e}
SYMATTR InstName C40
SYMBOL res -1696 112 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R7
SYMATTR Value 1
SYMBOL cap -720 112 R0
WINDOW 3 34 105 Left 0
WINDOW 0 49 73 Left 0
SYMATTR Value {C2}
SYMATTR InstName C2
SYMBOL voltage -1856 144 R0
WINDOW 3 9 172 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -42 135 Left 0
SYMATTR Value PULSE(0 2 0 .01n .01n 1.5n 3n 1)
SYMATTR SpiceLine Rser=.001
SYMATTR InstName V1
SYMBOL ind 1216 -208 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L40
SYMATTR Value {L4bw}
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L3a}
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L25
SYMATTR Value {L1a}
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WINDOW 0 48 81 Left 0
SYMATTR Value {C1c}
SYMATTR InstName C39
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L33
SYMATTR Value {L1e}
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L39
SYMATTR Value {L3bw}
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WINDOW 0 56 65 Left 0
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SYMATTR InstName C21
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SYMATTR InstName C22
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SYMATTR Value 50
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SYMATTR Value 50
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WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L4a}
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SYMATTR InstName E1
SYMATTR Value 1
SYMBOL cap -576 112 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
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SYMATTR InstName C3
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SYMATTR InstName L38
SYMATTR Value {L2bw}
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WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R9
SYMATTR Value {100*Ra}
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WINDOW 3 5 56 VBottom 0
SYMATTR InstName L2
SYMATTR Value {L2}
SYMBOL cap -1424 160 R0
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WINDOW 0 45 34 Left 0
SYMATTR Value {0.01*Ca}
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SYMBOL res 672 96 R90
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SYMATTR InstName R16
SYMATTR Value 50
SYMBOL cap -1712 160 R0
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SYMATTR Value {Ca}
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WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R8
SYMATTR Value {10*Ra}
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WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L4}
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SYMATTR InstName C43
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WINDOW 0 41 56 VTop 0
WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L2c}
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WINDOW 3 32 56 VTop 0
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SYMATTR Value 50
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L4a}
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WINDOW 0 41 56 VTop 0
WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L2a}
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WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
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SYMATTR Value 50
SYMBOL cap 656 464 R0
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WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L3}
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L4e}
SYMBOL res 672 768 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R20
SYMATTR Value 50
SYMBOL res -896 1152 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R12
SYMATTR Value 50
SYMBOL ind -848 800 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L9
SYMATTR Value {L1c}
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SYMATTR InstName R21
SYMATTR Value 50
SYMBOL cap 992 -224 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3bw}
SYMATTR InstName C49
SYMBOL cap -1568 160 R0
WINDOW 3 -12 100 Left 0
WINDOW 0 35 34 Left 0
SYMATTR Value {0.1*Ca}
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SYMATTR Value 50
SYMBOL res -208 448 R0
SYMATTR InstName R2
SYMATTR Value 50
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WINDOW 0 41 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L6
SYMATTR Value {L2a}
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L1}
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WINDOW 3 5 56 VBottom 0
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SYMATTR Value {L2}
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SYMATTR InstName R1
SYMATTR Value 50
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WINDOW 3 34 105 Left 0
WINDOW 0 49 73 Left 0
SYMATTR Value {C2c}
SYMATTR InstName C14
SYMBOL cap 992 464 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3a}
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SYMBOL cap -912 784 R0
WINDOW 3 42 105 Left 0
WINDOW 0 48 81 Left 0
SYMATTR Value {C1c}
SYMATTR InstName C16
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WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L16
SYMATTR Value {L4e}
SYMBOL res -1280 112 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R10
SYMATTR Value {1000*Ra}
SYMBOL cap 992 1168 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3e}
SYMATTR InstName C42
SYMBOL ind -688 -208 R270
WINDOW 0 41 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L18
SYMATTR Value {L2bw}
SYMBOL cap -576 464 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3a}
SYMATTR InstName C7
SYMBOL cap -720 1168 R0
WINDOW 3 35 98 Left 0
WINDOW 0 41 67 Left 0
SYMATTR Value {C1e}
SYMATTR InstName C20
SYMBOL cap -416 -224 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4bw}
SYMATTR InstName C24
SYMBOL cap -912 112 R0
WINDOW 3 42 105 Left 0
WINDOW 0 48 81 Left 0
SYMATTR Value {C1}
SYMATTR InstName C1
SYMBOL res 1360 -240 R0
SYMATTR InstName R23
SYMATTR Value 50
SYMBOL cap -416 464 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4a}
SYMATTR InstName C5
SYMBOL cap 896 1104 R270
WINDOW 3 0 32 VBottom 0
WINDOW 0 32 32 VTop 0
SYMATTR Value {C2e}
SYMATTR InstName C41
SYMBOL cap -416 112 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4}
SYMATTR InstName C4
SYMBOL res -208 -240 R0
SYMATTR InstName R13
SYMATTR Value 50
SYMBOL cap 1152 784 R0
WINDOW 3 34 97 Left 0
WINDOW 0 56 73 Left 0
SYMATTR Value {C4c}
SYMATTR InstName C36
SYMBOL cap -672 1104 R270
WINDOW 3 0 32 VBottom 0
WINDOW 0 32 32 VTop 0
SYMATTR Value {C2e}
SYMATTR InstName C18
SYMBOL ind 880 1184 R270
WINDOW 0 33 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L34
SYMATTR Value {L2e}
SYMBOL ind -848 480 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L5
SYMATTR Value {L1a}
SYMBOL ind -544 -208 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L19
SYMATTR Value {L3bw}
SYMBOL cap -912 464 R0
WINDOW 3 42 105 Left 0
WINDOW 0 48 81 Left 0
SYMATTR Value {C1a}
SYMATTR InstName C8
SYMBOL res 672 -240 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R24
SYMATTR Value 50
SYMBOL voltage 320 112 R0
SYMATTR InstName V2
SYMATTR Value AC 1
SYMBOL ind -688 800 R270
WINDOW 0 41 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L10
SYMATTR Value {L2c}
SYMBOL ind -848 1184 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L13
SYMATTR Value {L1e}
SYMBOL ind -544 1184 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L15
SYMATTR Value {L3e}
SYMBOL ind -848 -208 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L17
SYMATTR Value {L1bw}
SYMBOL res 1360 448 R0
SYMATTR InstName R17
SYMATTR Value 50
SYMBOL ind -688 1184 R270
WINDOW 0 33 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L14
SYMATTR Value {L2e}
SYMBOL res -896 768 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 50
SYMBOL res 672 1152 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R22
SYMATTR Value 50
SYMBOL cap -576 -224 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3bw}
SYMATTR InstName C26
SYMBOL cap 848 -224 R0
WINDOW 3 34 105 Left 0
WINDOW 0 49 73 Left 0
SYMATTR Value {C2bw}
SYMATTR InstName C48
SYMBOL cap 1152 1168 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C5e}
SYMATTR InstName C44
SYMBOL cap -912 -224 R0
WINDOW 3 42 105 Left 0
WINDOW 0 48 81 Left 0
SYMATTR Value {C1bw}
SYMATTR InstName C27
SYMBOL ind 720 128 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L21
SYMATTR Value {L1}
SYMBOL ind 1024 1184 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L35
SYMATTR Value {L3e}
SYMBOL cap 1344 1168 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C7e}
SYMATTR InstName C46
SYMBOL cap -576 784 R0
WINDOW 3 34 89 Left 0
WINDOW 0 56 65 Left 0
SYMATTR Value {C3c}
SYMATTR InstName C15
SYMBOL ind 1024 800 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L31
SYMATTR Value {L3c}
SYMBOL cap 656 112 R0
WINDOW 3 42 105 Left 0
WINDOW 0 48 81 Left 0
SYMATTR Value {C1}
SYMATTR InstName C31
FLAG -192 208 0
FLAG -1856 240 0
FLAG -848 112 inputbt
FLAG -192 112 outputbt
FLAG -400 192 0
FLAG -704 192 0
FLAG -560 192 0
FLAG -1120 192 0
FLAG -1168 208 0
FLAG -1184 128 RCout
FLAG -1280 224 0
FLAG -1408 224 0
FLAG -1552 224 0
FLAG -1696 224 0
FLAG -896 192 0
FLAG -192 560 0
FLAG -848 464 inputg
FLAG -192 464 outputg
FLAG -400 544 0
FLAG -704 544 0
FLAG -560 544 0
FLAG -896 544 0
FLAG -192 880 0
FLAG -848 784 inputc
FLAG -192 784 outputc
FLAG -400 864 0
FLAG -704 864 0
FLAG -560 864 0
FLAG -896 864 0
FLAG -112 1264 0
FLAG -880 1168 inpute
FLAG -112 1168 outpute
FLAG -400 1248 0
FLAG -704 1248 0
FLAG -560 1248 0
FLAG -208 1248 0
FLAG -192 -128 0
FLAG -848 -224 inputbw
FLAG -192 -224 outputbw
FLAG -400 -144 0
FLAG -704 -144 0
FLAG -560 -144 0
FLAG -896 -144 0
FLAG 1376 208 0
FLAG 1376 112 btout
FLAG 1168 192 0
FLAG 864 192 0
FLAG 1008 192 0
FLAG 672 192 0
FLAG 1376 560 0
FLAG 1376 464 gout
FLAG 1168 544 0
FLAG 864 544 0
FLAG 1008 544 0
FLAG 672 544 0
FLAG 1376 880 0
FLAG 1376 784 cout
FLAG 1168 864 0
FLAG 864 864 0
FLAG 1008 864 0
FLAG 672 864 0
FLAG 1456 1264 0
FLAG 1456 1168 eout
FLAG 1168 1248 0
FLAG 864 1248 0
FLAG 1008 1248 0
FLAG 1360 1248 0
FLAG 1376 -128 0
FLAG 1376 -224 bwout
FLAG 1168 -144 0
FLAG 864 -144 0
FLAG 1008 -144 0
FLAG 672 -144 0
FLAG 320 240 0
TEXT -1832 360 Left 0 !;tran 0 3n 0
TEXT -760 -24 Left 0 ;Bessel-Thompson Lowpass\nMaximally flat delay
TEXT -1864 64 Left 0 !.param Ra=1 Trise=.01n  Ca=Trise/4.4
TEXT -1856 32 Left 0 ;Trise =4.4*RC of any section
TEXT -1320 40 Left 0 !.param   C1=292.1uF/Fo  L1=2.16H/Fo  C2=1.401mF/Fo  L2=4.716H/Fo  C3=2.321mF/Fo  L3=6.908H/Fo  C4=3.481mF/Fo  L4=18H/Fo
TEXT -1424 392 Left 0 !.param     C1a=220.7uF/Fo  L1a=1.641H/Fo  C2a=1.076mF/Fo  L2a=3.701H/Fo  C3a=1.888mF/Fo  L3a=5.941H/Fo  C4a=3.215mF/Fo  L4a=17.95H/Fo
TEXT -744 344 Left 0 ;Gaussian Lowpass\nZero overshoot step response.
TEXT -1576 -248 Left 0 !.param Fo=1e9
TEXT -744 648 Left 0 ;Chebychev Lowpass\nEqual ripple pass band.
TEXT -1408 704 Left 0 !.param     C1c=3.463mF/Fo  L1c=12.15H/Fo  C2c=6.057mF/Fo  L2c=14.56H/Fo  C3c=5.825mF/Fo  L3c=15.14H/Fo  C4c=4.859mF/Fo  L4c=8.658H/Fo
TEXT -672 952 Left 0 ;Elliptic Lowpass
TEXT -1640 1000 Left 0 !.param     C1e=2.976mF/Fo  L1e=8.444H/Fo  C2e=4.085mF/Fo  L2e=5.064H/Fo  C3e=2.773mF/Fo   L3e=7.816H/Fo  C4e=2.25mF/Fo  L4e=8.983H/Fo C5e=3.903mF/Fo  C6e=1.09mF/Fo  C7e=2.471mF/Fo
TEXT -760 -360 Left 0 ;Butterworth Lowpass\nFlat freq response
TEXT -1288 -304 Left 0 !.param   C1bw=1.242mF/Fo  L1bw=8.84H/Fo  C2bw=5.292mF/Fo  L2bw=15.61H/Fo  C3bw=6.242mF/Fo  L3bw=13.23H/Fo  C4bw=3.536mF/Fo  L4bw=3.104H/Fo
TEXT -1576 -216 Left 0 ;Fo is the 3db freq of the filters and\nscales the L's and C's to produce that\nresponse.  The actual values can be\nviewed in the spice netlist.
TEXT -1872 -64 Left 0 ;The RC filter gives a realistic bandwidth limited\ninput signal.   Set the desired risetime in the .param\nstatement.
TEXT -1704 -320 Left 0 ;Ron Larson    8/6/04
TEXT 808 -24 Left 0 ;Bessel-Thompson Lowpass\nMaximally flat delay
TEXT 824 344 Left 0 ;Gaussian Lowpass\nZero overshoot step response.
TEXT 824 648 Left 0 ;Chebychev Lowpass\nEqual ripple pass band.
TEXT 896 952 Left 0 ;Elliptic Lowpass
TEXT 808 -360 Left 0 ;Butterworth Lowpass\nFlat freq response
TEXT 248 80 Left 0 !.ac oct 200 50meg 5G