Appendix A
November, 2000

 


Low-Pass
3-Pole
Bessel


Theoretical Transfer Characteristics
f/fc Amp Phase Delay1
(Hz) (dB) (deg) (sec)
       
0.10 -0.027 -10.1 .279
0.20 -0.108 -20.1 .279
0.30 -0.243 -30.2 .279
0.40 -0.436 -40.2 .279
0.50 -0.689 -50.3 .279
       
0.60 -1.01 -60.3 .278
0.70 -1.39 -70.3 .276
0.80 -1.85 -80.2 .273
0.90 -2.39 -89.9 .268
1.00 -3.01 -99.5 .261
1.10 -3.71 -109 .252
1.20 -4.47 -118 .241
1.30 -5.31 -126 .228
1.40 -6.19 -134 .214
1.50 -7.12 -141 .199
1.60 -8.08 -148 .184
1.70 -9.05 -155 .170
1.80 -10.0 -161 .157
1.90 -11.0 -166 .144
2.00 -12.0 -171 .133
2.50 -16.7 -191 .089
3.00 -20.9 -204 .062
3.50 -24.6 -213 .046
4.00 -27.8 -221 .035
5.00 -33.4 -231 .022
6.00 -38.1 -237 .015
7.00 -42.0 -242 .011
8.00 -45.5 -245 .009
9.00 -48.5 -248 .007
10.0 -51.2 -250 .005

Notes:

  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

 



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