D74H4B-33.3KHZ Frequency Devices, Inc., D74H4B-33.3KHZ Datasheet - Page 4
![no-image](/images/no-image-200.jpg)
D74H4B-33.3KHZ
Manufacturer Part Number
D74H4B-33.3KHZ
Description
16 Pin DIP 4-Pole Filters
Manufacturer
Frequency Devices, Inc.
Datasheet
1.D74H4B-33.3KHZ.pdf
(6 pages)
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:
25 Locust St., Haverhill, Massachusetts 01830
Theoretical Transfer Characteristics
e-mail: sales@freqdev.com
Actual 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).
-0.028
-0.111
-0.251
-0.448
-0.705
-1.02
-1.41
-1.86
-2.11
-2.40
-2.69
-3.01
-3.71
-4.51
-5.39
-6.37
-7.42
-8.54
-9.71
-10.9
-12.2
-13.4
-16.5
-19.5
-22.4
-25.1
-27.6
-30.0
-34.4
-41.9
-48.1
-53.4
-58.0
-62.0
-65.7
Amp
0.00
(dB)
Actual Corner Frequency (fc) in Hz
Normalized Delay
Phase
(deg)
-12.1
-24.2
-36.3
-48.4
-60.6
-72.7
-84.8
-96.8
-103
-109
-115
-121
-133
-144
-156
-166
-177
-187
-195
-204
-212
-219
-235
-248
-259
-267
-275
-281
-291
-305
-315
-321
-326
-330
-333
0.00
∑
Web Address: http://www.freqdev.com
Delay
(sec)
.336
.336
.336
.336
.336
.336
.336
.336
.335
.334
.333
.332
.330
.325
.318
.308
.295
.280
.263
.246
.228
.211
.194
.158
.129
.107
.089
.076
.065
.049
.031
.021
.016
.012
.009
.008
1
∑
Tel :800/252-7074, 978/374-0761
2
-100
-0.0
-0.2
-20
-40
-60
-80
1.2
1.0
0.8
0.6
0.4
0.2
1.0
0.5
0.0
0
0.1
0.1
0
Frequency Response
Delay (Normalized)
Step Response
0.15
2
∑
1
Normalized Frequency(f/fc)
Fax on Demand: 978/521-5178
Normalized Time (1/f sec)
Low-Pass
4-Pole
Bessel
2
Normalized Time (1/f sec)
3 4 5 6 78
3
2
4
∑
1.0
FAX:978/521-1839
5 6 7 8 9
3
2
3 4 5 6 7
1.0
4
1.5
10.0
5