8-Pole, 6-Zero
Constant Delay
Appendix A
Low-Pass (80 dB)
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-30.7
-61.3
-92.0
-123
.852
.852
.852
.852
.852
0.017
0.058
0.099
0.105
0.50
0.60
0.70
0.80
0.85
0.034
-0.157
-0.510
-1.07
-153
-184
-215
-245
-261
.852
.852
.852
.851
.850
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
-1.44
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-1.89
-2.41
-3.01
-4.50
-6.39
-276
-291
-306
-336
-365
.849
.846
.841
.821
.783
Delay (Normalized)
1.0
0.5
0.0
1.40
1.60
1.80
2.00
2.25
-11.3
-17.1
-23.2
-29.1
-36.3
-417
-459
-492
-517
-542
.656
.512
.396
.312
.239
2.50
2.75
3.00
3.25
3.50
-43.4
-50.3
-57.6
-62.5
-75.4
-561
-576
-589
-599
-608
.189
.153
.127
.107
.092
2
3
4
0.15
1.5
3.75
4.00
4.25
4.50
4.75
-98.3
-86.3
-84.1
-85.1
-87.9
-616
-442
-448
-454
-458
.079
.069
.061
.054
.049
0.1
5 6 7 8 91.0
Normalized Time (1/f sec)
Step Response
5.00
5.25
5.50
5.75
6.00
-92.8
-104
-101
-93.3
-89.9
-462
-466
-289
-293
-295
.044
.040
.036
.033
.030
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
6.50
7.00
8.00
9.00
10.0
-86.6
-85.1
-84.1
-84.3
-84.9
-300
-305
-312
-317
-321
.026
.022
.017
.013
.011
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).
0
1
2
3
4
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
21
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