參數(shù)資料
型號(hào): DP74H4B-250KHZ
廠商: Electronic Theatre Controls, Inc.
英文描述: 16 Pin DIP 4-Pole Filters
中文描述: 16引腳DIP 4極濾波器
文件頁(yè)數(shù): 4/6頁(yè)
文件大小: 558K
代理商: DP74H4B-250KHZ
Low-Pass
4-Pole
Bessel
Appendix A
2
25 Locust St., Haverhill, Massachusetts 01830
Tel
:800/252-7074, 978/374-0761
FAX:978/521-1839
e-mail: sales@freqdev.com
Web Address: http://www.freqdev.com
Fax on Demand: 978/521-5178
Normalized Frequency(f/fc)
A
Normalized Time (1/f sec)
D
Normalized Time (1/f sec)
S
Frequency Response
Delay
(Normalized)
Step Response
0.1
1.0
10.0
2
3 4 5 678
2
3 4 5 67
-100
-80
-60
-40
-20
0
0.1
1.0
2
3
4
5 6 7 8 9
0.0
0.5
1.0
1.5
0.15
0
1
2
3
4
5
-0.0
-0.2
0.2
0.4
0.6
0.8
1.0
1.2
(sec)
.336
.336
.336
.336
.336
.336
Theoretical Transfer Characteristics
1
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
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).
Actual Delay =
Normalized Delay
Actual Corner Frequency (fc) in Hz
f/fc
(Hz)
Amp
(dB)
0.00
-0.028
-0.111
-0.251
-0.448
-0.705
Phase
(deg)
0.00
-12.1
-24.2
-36.3
-48.4
-60.6
-72.7
-84.8
-96.8
-103
-109
Delay
-48.1
-53.4
-58.0
-62.0
-65.7
-25.1
-27.6
-30.0
-34.4
-41.9
-12.2
-13.4
-16.5
-19.5
-22.4
-6.37
-7.42
-8.54
-9.71
-10.9
-2.69
-3.01
-3.71
-4.51
-5.39
-1.02
-1.41
-1.86
-2.11
-2.40
-315
-321
-326
-330
-333
-267
-275
-281
-291
-305
-212
-219
-235
-248
-259
-166
-177
-187
-195
-204
-115
-121
-133
-144
-156
.021
.016
.012
.009
.008
.089
.076
.065
.049
.031
.211
.194
.158
.129
.107
.295
.280
.263
.246
.228
.332
.330
.325
.318
.308
.336
.336
.335
.334
.333
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