D74H4B FREQUENCYDEVICES [Frequency Devices, Inc.], D74H4B Datasheet - Page 5

• Manufacturer Part Number: D74H4B
• Description: 16 Pin DIP 4-Pole Filters
• Manufacturer: FREQUENCYDEVICES [Frequency Devices, Inc.]

Appendix A
(Hz)
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.85
0.90
0.95
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.25
2.50
2.75
3.00
3.25
3.50
4.00
5.00
6.00
7.00
8.00
9.00
10.0
f/fc
1.Normalized Group Delay:
1784 Chessie Lane, Ottawa, IL 61350 • Tel: [phone] • FAX: [phone]
Theoretical Transfer Characteristics
e-mail: [e-mail]
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).
Actual Delay =
-0.00
-0.003
-0.017
-0.072
-0.243
-0.674
-1.047
-1.555
-2.21
-3.01
-4.97
-7.24
-9.62
-12.0
-14.3
-16.4
-18.5
-20.5
-22.3
-24.1
-28.2
-31.8
-35.1
-38.2
-41.0
-43.5
-48.2
-55.9
-62.3
-67.6
-72.2
-76.3
-80.0
Amp
0.00
0.00
0.00
(dB)
Actual Corner Frequency (fc) in Hz
Normalized Delay
Phase
(deg)
-15.0
-30.1
-45.5
-61.4
-78.0
-95.7
-115
-136
-147
-158
-169
-180
-200
-217
-231
-242
-252
-260
-266
-272
-277
-282
-291
-299
-304
-309
-313
-317
-322
-330
-335
-339
-341
-343
-345
0.00
Web Address: http://www.freqdev.com
Delay
(sec)
.416
.418
.423
.433
.449
.474
.511
.558
.604
.619
.622
.612
.588
.513
.427
.350
.289
.241
.204
.175
.152
.134
.119
.091
.072
.059
.049
.041
.035
.027
.017
.012
.009
.007
.005
.004
1
7
-100
-0.0
-20
-40
-60
-80
1.2
1.0
0.8
0.6
0.4
0.2
2.0
1.0
0.0
0
0.1
0.1
0
Frequency Response
Delay (Normalized)
Step Response
0.15
2
1
Normalized Frequency(f/fc)
Normalized Frequency(f/fc)
Low-Pass
4-Pole
Butterworth
2
Normalized Time (1/f sec)
3 4 5 6 78
3
2
4
1.0
5 6 7 8 9
3
2
3 4 5 6 7
1.0
4
1.5
10.0
5