8-Pole, 6-Zero
Constant Delay
Appendix A
Low-Pass (60 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
-28.0
-55.9
-83.9
-112
.776
.776
.776
.776
.776
0.005
0.012
0.005
-0.042
0.50
0.60
0.70
0.80
0.85
-0.161
-0.384
-0.745
-1.28
-140
-168
-196
-224
-238
.776
.776
.776
.776
.776
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
-1.62
Normalized Frequency(f/fc)
-252
-265
-279
-307
-334
0.90
0.95
1.00
1.10
1.20
-2.02
-2.48
-3.01
-4.29
-5.91
.776
.775
.773
.766
.749
Delay (Normalized)
1.0
0.5
0.0
1.40
1.60
1.80
2.00
2.25
-10.3
-15.9
-22.4
-29.4
-39.0
-386
-431
-467
-495
-523
.675
.558
.443
.351
.268
2.50
2.75
3.00
3.25
3.50
-50.5
-78.0
-63.7
-63.5
-66.9
-544
-561
-395
-407
-417
.212
.171
.142
.119
.102
2
3
4
5 6 7 8 91.0
0.15
1.5
3.75
4.00
4.25
4.50
4.75
-74.7
-85.0
-72.0
-67.9
-65.8
-425
-253
-259
-265
-270
.088
.077
.068
.060
.054
0.1
Normalized Time (1/f sec)
Step Response
5.00
5.25
5.50
5.75
6.00
-64.6
-63.9
-63.5
-63.3
-63.2
-275
-279
-283
-286
-289
.048
.044
.040
.036
.033
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
-63.3
-63.7
-64.7
-66.0
-67.3
-295
-299
-307
-313
-318
.028
.024
.019
.015
.012
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
9
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