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High-Pass
4-Pole, 0.2 dB Ripple
Appendix A
Chebychev
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25 Locust St., Haverhill, Massachusetts 01830
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∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178
Normalized Frequency(f/fc)
Frequency Response
0.1
1.0
10.0
2
3 4 5 6 78
2
3 4 5 6 7 8
-100
-80
-60
-40
-20
0
(sec)
Theoretical Transfer Characteristics
1
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.20
1.50
1.70
2.00
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
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
f/fc
(Hz)
Amp
(dB)
Phase
(deg)
Delay
.060
.048
.040
.200
.170
.129
.098
.076
.140
.031
.003
.074
.174
-25.0
-18.6
-12.7
-7.34
-3.01
-89.8
-65.1
-51.1
-40.6
-32.2
21.7
19.3
17.3
60.4
44.5
35.2
29.2
24.9
172
128
111
93.2
73.4
308
296
280
259
231
352
345
337
328
319
.008
.006
.005
.060
.033
.020
.014
.010
.633
.275
.197
.138
.088
.314
.383
.500
.686
.873
.212
.218
.228
.245
.272
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