8-Pole, 6-Zero
Elliptic, 1.77
High-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.10
0.20
0.30
0.40
0.50
-89.3
-82.1
-90.6
-82.4
-87.8
164
148
131
292
450
0.440
0.459
0.495
0.559
0.671
0.55
0.60
0.70
0.80
0.85
-90.0
-60.2
-32.4
-13.1
-6.28
0.761
0.890
1.37
437
603
563
498
451
2.35
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
2.77
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-2.21
-0.51
-0.03
-0.01
-0.05
401
358
324
277
225
2.66
2.15
1.64
1.04
0.757
1.30
1.40
1.50
1.60
1.70
-0.03
0.01
0.03
0.03
0.03
221
201
185
172
160
0.596
0.486
0.409
0.347
0.299
1.80
1.90
2.00
2.50
3.00
0.02
0.01
0.01
-0.02
-0.02
150
141
133
105
86.9
0.260
0.229
0.203
0.123
0.083
4.00
5.00
6.00
7.00
8.00
-0.02
-0.01
-0.01
-0.01
-0.01
64.7
51.6
42.9
36.8
32.1
0.046
0.029
0.020
0.015
0.011
9.00
10.0
-0.01
0.00
28.6
25.7
0.009
0.007
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).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
37
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