8-Pole, 6-Zero
Constant Delay
Appendix A
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.00
0.00
.852
0.00
0.017
-30.7
.852
0.10
0.058
-61.3
.852
0.20
0.099
-92.0
.852
0.30
0.105
-123
.852
0.40
0.034
-153
.852
0.50
-0.157
-184
.852
0.60
-0.510
-215
.852
0.70
-1.07
-245
.851
0.80
-1.44
-261
.850
0.85
-1.89
-276
.849
0.90
-2.41
-291
.846
0.95
-3.01
-306
.841
1.00
-4.50
-336
.821
1.10
-6.39
-365
.783
1.20
-11.3
-417
.656
1.40
-17.1
-459
.512
1.60
-23.2
-492
.396
1.80
-29.1
-517
.312
2.00
-36.3
-542
.239
2.25
2.50
-43.4
-561
.189
2.75
-50.3
-576
.153
3.00
-57.6
-589
.127
3.25
-62.5
-599
.107
3.50
-75.4
-608
.092
3.75
-98.3
-616
.079
4.00
-86.3
-442
.069
4.25
-84.1
-448
.061
4.50
-85.1
-454
.054
4.75
-87.9
-458
.049
5.00
-92.8
-462
.044
5.25
-104
-466
.040
5.50
-101
-289
.036
5.75
-93.3
-293
.033
6.00
-89.9
-295
.030
-86.6
-300
.026
6.50
-85.1
-305
.022
7.00
-84.1
-312
.017
8.00
-84.3
-317
.013
9.00
-84.9
-321
.011
10.0
1.Normalized
Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Actual Delay =
Normalized Delay
Actual Corner Frequency (fc) in Hz
Low-Pass (80 dB)
Frequency Response
0
Amp (dB)
-20
-40
-60
-80
-100
0.1
2
1.0
2 3 4 5 6 7
10.0
Normalized Frequency(f/fc)
3 4 5 6 78
Delay
(Normalized)
1.0
Delay (sec)
0.5
0.0
0.1
0.15 2
1.0
1.5
Normalized Time (1/f sec)
3
4
5 6 7 89
Step Response
Step Response (V/V)
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
0
1
2
3
4
Normalized Time (1/f sec)
5
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21
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