D74H4B FREQUENCYDEVICES [Frequency Devices, Inc.], D74H4B Datasheet - Page 6

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

Appendix A
(Hz)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.85
0.90
0.95
1.00
1.20
1.40
1.60
1.80
2.00
2.50
3.00
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 =
-80.0
-55.9
-41.8
-31.8
-24.1
-17.8
-12.6
-8.43
-6.69
-5.22
-3.99
-3.01
-0.908
-0.285
-0.100
-0.039
-0.017
-0.003
-0.001
Amp
0.00
0.00
0.00
0.00
0.00
0.00
0.00
(dB)
Actual Corner Frequency (fc) in Hz
Normalized Delay
Phase
(deg)
87.6
78.0
61.4
50.7
37.8
30.1
25.1
21.4
18.8
16.7
15.0
345
330
314
299
282
264
245
224
213
202
191
180
143
118
100
Web Address: http://www.freqdev.com
Delay
(sec)
.418
.423
.433
.449
.474
.511
.558
.604
.619
.622
.612
.588
.427
.289
.204
.152
.119
.072
.049
.027
.017
.012
.009
.007
.005
.004
1
27
-100
-20
-40
-60
-80
0
0.1
Frequency Response
2
Normalized Frequency(f/fc)
High-Pass
4-Pole
Butterworth
3 4 5 6 78
1.0
2
3 4 5 6 7
10.0