High-Pass
6-Pole
Appendix A
Butterworth
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
-120
518
496
473
450
425
0.617
0.624
0.637
0.656
0.685
-83.9
-62.7
-47.8
-36.1
0.60
0.70
0.80
0.85
0.90
-26.6
-18.6
-11.9
-9.05
-6.57
400
373
342
325
307
0.731
0.803
0.911
0.970
1.017
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.95
1.00
1.20
1.40
1.60
-4.55
-3.01
-0.46
-0.08
-0.02
288
270
209
172
147
1.033
1.005
0.660
0.417
0.291
1.80
2.00
2.50
3.00
4.00
-0.00
-0.00
-0.00
-0.00
0.00
128
115
90.4
74.8
55.8
0.219
0.171
0.105
0.071
0.039
5.00
6.00
7.00
8.00
9.00
10.0
0.00
0.00
0.00
0.00
0.00
0.00
44.5
37.0
31.7
27.7
24.6
22.2
0.025
0.017
0.013
0.010
0.008
0.006
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
28
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