Low-Pass
6-Pole
Appendix A
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.00
0.00
0.00
.430
0.10
-0.029
-15.5
.430
0.20
-0.116
-31.0
.430
0.30
-0.261
-46.5
.430
0.40
-0.465
-62.0
.430
0.50
-0.728
-77.4
.430
0.60
-1.05
-92.9
.430
0.70
-1.44
-108
.430
0.80
-1.89
-124
.430
0.85
-2.15
-132
.430
0.90
-2.42
-139
.430
0.95
-2.70
-147
.430
1.00
-3.01
-155
.430
1.10
-3.68
-170
.429
1.20
-4.44
-186
.428
1.30
-5.29
-201
.426
1.40
-6.23
-216
.422
1.50
-7.29
-232
.416
1.60
-8.46
-246
.401
1.70
-9.74
-261
.393
1.80
-11.1
-275
.376
1.90
-12.6
-287
.357
2.00
-14.2
-300
.335
2.25
-18.3
-328
.279
2.50
-22.6
-351
.228
2.75
-26.7
-369
187
3.00
-30.7
-385
.156
3.25
-34.5
-398
.131
3.50
-38.1
-408
.111
4.00
-44.7
-426
.083
5.00
-55.9
-449
.052
6.00
-65.2
-465
.036
7.00
-73.2
-476
.026
8.00
-80.1
-484
.020
9.00
-86.2
-490
.015
10.0
-91.6
-495
.013
Bessel
Frequency Response
0
Amp (dB)
-20
-40
-60
-80
-100
0.1
2 3 4 56781.0
2 3 4 567 10.0
Normalized Frequency(f/fc)
Delay
(Normalized)
1.0
Delay (sec)
0.5
0.0
3 4 5 6 7 89
0.1 0.15 2
1.0 1.5
Normalized Time (1/f sec)
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
0
Step Response (V/V)
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
1
2
3
4
Normalized Time (1/f sec)
5
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3
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