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Q = 1
Q = 2
Q = 5
Q = 10
f
L < fO < fH
f
L < fO < fH
f
L < fO < fH
f
L < fO < fH
Amp
(dB)
f /fO
f /fO
f /fO
f /fO
f /fO
f /fO
f /fO
f /fO
-0.10 0.824 1.214
0.907 1.102
0.962 1.040
0.981 1.020
-0.25 0.783 1.277
0.884 1.131
0.952 1.051
0.976 1.025
-0.50 0.747 1.338
0.863 1.159
0.943 1.061
0.971 1.030
-1.00 0.705 1.418
0.837 1.194
0.931 1.074
0.965 1.036
-1.50 0.677 1.478
0.820 1.220
0.923 1.083
0.961 1.041
-2.00 0.654 1.529
0.805 1.242
0.916 1.091
0.957 1.045
-2.50 0.635 1.574
0.792 1.262
0.910 1.098
0.954 1.048
-3.00 0.618 1.617
0.781 1.280
0.905 1.105
0.951 1.051
-5.00 0.563 1.776
0.742 1.348
0.886 1.129
0.941 1.062
-10.00 0.457 2.189
0.657 1.523
0.842 1.188
0.917 1.090
-15.00 0.368 2.720
0.572 1.748
0.792 1.263
0.889 1.125
-20.00 0.290 3.445
0.485 2.062
0.733 1.364
0.855 1.170
-25.00 0.225 4.439
0.399 2.506
0.664 1.507
0.811 1.233
-30.00 0.173 5.795
0.319 3.130
0.585 1.709
0.758 1.320
-35.00 0.131 7.630
0.250 3.999
0.500 2.000
0.693 1.443
-40.00 0.099 10.09
0.193 5.192
0.414 2.414
0.618 1.618
-45.00 0.075 13.41
0.147 6.814
0.333 3.001
0.535 1.869
-50.00 0.056 17.83
0.111 9.002
0.262 3.819
0.449 2.228
-55.00 0.042 23.75
0.084 11.94
0.202 4.945
0.365 2.737
-60.00 0.032 31.65
0.063 15.87
0.154 6.479
0.290 3.453
-65.00 0.024 42.19
0.047 21.13
0.117 8.552
0.225 4.443
-70.00 0.018 56.25
0.036 28.15
0.088 11.33
0.172 5.798
-75.00 0.013 75.00
0.027 37.52
0.066 15.06
0.131 7.632
-80.00 0.010 100.0
0.020 50.01
0.050 20.05
0.099 10.10
Band-Pass
2-Pole Pair
Appendix A
25 Locust St., Haverhill, Massachusetts 01830
∑Tel:800/252-7074, 978/374-0761 ∑FAX:978/521-1839
e-mail: sales@freqdev.com
∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178
Amplitude Response Curves
0.1
1.0
10.0
2
3 4 5 6 7 8
2
3 4 5 6 7 8
Normalized Frequency (f/fo)
-80
-70
-60
-50
-40
-30
-20
-10
0
Normalized Frequency (f/fo)
1.0
0.9
0.8
0.7
0.6
-5
-4
-3
-2
-1
0
1.1 1.2
1.4
1.3
1.5 1.6
Q1
Q2
Q5
Q10
Q1
Q2
Q5
Q10
39