Band-Pass
2-Pole Pair
Appendix A
Amplitude Response Curves
0
-10
-20
-30
-40
-50
-60
-70
-80
0.1
0
Amp (dB)
Q1
Q2
Q5
Q10
-1
-2
-3
-4
Q10
2
3 4 5 6 78
Q1
Q2
Amp (dB)
Q5
1.0
Normalized Frequency (f/fo)
2
3 4 5 6 7 8
10.0
-5
0.6
0.7
0.8
1.0
1.1 1.2 1.3 1.4 1.5 1.6
Normalized Frequency (f/fo)
0.9
Q=1
Amp
f
L
< f
O
< f
H
Q=2
f
L
< f
O
< f
H
Q=5
f
L
< f
O
< f
H
Q = 10
f
L
< f
O
< f
H
(dB)
-0.10
-0.25
-0.50
-1.00
-1.50
-2.00
-2.50
-3.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
-40.00
-45.00
-50.00
-55.00
-60.00
-65.00
-70.00
-75.00
-80.00
f /fO
0.824
0.783
0.747
0.705
0.677
0.654
0.635
0.618
0.563
0.457
0.368
0.290
0.225
0.173
0.131
0.099
0.075
0.056
0.042
0.032
0.024
0.018
0.013
0.010
f /fO
1.214
1.277
1.338
1.418
1.478
1.529
1.574
1.617
1.776
2.189
2.720
3.445
4.439
5.795
7.630
10.09
13.41
17.83
23.75
31.65
42.19
56.25
75.00
100.0
f /fO
0.907
0.884
0.863
0.837
0.820
0.805
0.792
0.781
0.742
0.657
0.572
0.485
0.399
0.319
0.250
0.193
0.147
0.111
0.084
0.063
0.047
0.036
0.027
0.020
f /fO
1.102
1.131
1.159
1.194
1.220
1.242
1.262
1.280
1.348
1.523
1.748
2.062
2.506
3.130
3.999
5.192
6.814
9.002
11.94
15.87
21.13
28.15
37.52
50.01
f /fO
0.962
0.952
0.943
0.931
0.923
0.916
0.910
0.905
0.886
0.842
0.792
0.733
0.664
0.585
0.500
0.414
0.333
0.262
0.202
0.154
0.117
0.088
0.066
0.050
f /fO
1.040
1.051
1.061
1.074
1.083
1.091
1.098
1.105
1.129
1.188
1.263
1.364
1.507
1.709
2.000
2.414
3.001
3.819
4.945
6.479
8.552
11.33
15.06
20.05
f /fO
0.981
0.976
0.971
0.965
0.961
0.957
0.954
0.951
0.941
0.917
0.889
0.855
0.811
0.758
0.693
0.618
0.535
0.449
0.365
0.290
0.225
0.172
0.131
0.099
f /fO
1.020
1.025
1.030
1.036
1.041
1.045
1.048
1.051
1.062
1.090
1.125
1.170
1.233
1.320
1.443
1.618
1.869
2.228
2.737
3.453
4.443
5.798
7.632
10.10
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