D68L8D10-849Hz Frequency Devices, Inc., D68L8D10-849Hz Datasheet - Page 17

• Manufacturer Part Number: D68L8D10-849Hz
• Description: 32 Pin DIP 8-Pole Filter
• Manufacturer: Frequency Devices, Inc.

Appendix A
0.10
0.20
0.30
0.40
0.50
0.55
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
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.0
(Hz)
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 =
-110
-105
-114
-110
-107
-78.6
-64.6
-44.1
-26.7
-18.2
-9.46
-2.16
-0.046
-0.038
-0.001
-0.032
-0.046
-0.034
-0.016
-0.004
-0.003
-0.010
-0.042
-0.045
-0.028
-0.015
-0.008
-0.005
-0.003
-0.002
-0.001
0.000
Amp
(dB)
Actual Corner Frequency (fc) in Hz
Normalized Delay
Phase
(deg)
156
323
309
654
646
637
615
586
565
533
478
419
352
308
277
252
231
214
200
187
176
166
131
108
80.6
64.2
53.4
45.7
40.0
35.5
31.9
168
Delay
0.338
0.348
0.367
0.397
0.445
0.480
0.524
0.669
1.001
1.401
2.315
3.604
2.681
1.416
1.018
0.773
0.618
0.514
0.436
0.376
0.328
0.288
0.255
0.153
0.103
0.057
0.036
0.025
0.018
0.014
0.011
0.009
(sec)
1
38
-100
-120
-20
-40
-60
-80
0
0.1
Frequency Response
2
Normalized Frequency(f/fc)
8-Pole, 6-Zero
Elliptic, 2.00
High-Pass
3
4
5 6 7 8
1.0
2
3
4
5 6 7
10.0