D68L8D10-849Hz Frequency Devices, Inc., D68L8D10-849Hz Datasheet - Page 14

• Manufacturer Part Number: D68L8D10-849Hz
• Description: 32 Pin DIP 8-Pole Filter
• Manufacturer: 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:
25 Locust St., Haverhill, Massachusetts 01830 · Tel:[phone] · FAX:[phone]
Theoretical Transfer Characteristics
e-mail: [e-mail] · Web Address: http://www.freqdev.com · Fax on Demand: 978/521-5178
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 =
-160
-112
-83.7
-63.7
-48.2
-35.5
-24.8
-15.6
-11.6
-8.06
-5.15
-3.01
-0.229
-0.020
-0.002
Amp
0.00
0.00
0.00
0.00
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)
691
661
631
600
568
535
499
459
437
413
386
360
275
226
194
170
152
120
99.2
74.0
59.0
49.0
42.1
36.8
32.7
29.4
Delay
(sec)
0.819
0.828
0.843
0.867
0.903
.956
1.04
1.19
1.29
1.40
1.48
1.46
0.873
0.540
0.380
0.287
0.226
0.139
0.094
0.052
0.033
0.023
0.017
0.013
0.010
0.008
1
29
-100
-20
-40
-60
-80
0
0.1
Frequency Response
2
Normalized Frequency(f/fc)
High-Pass
8-Pole
Butterworth
3
4
5 6 7 8
1.0
2
3
4
5 6 7
10.0