D68L8D10-849Hz Frequency Devices, Inc., D68L8D10-849Hz Datasheet - Page 7

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

Appendix A
0.00
0.10
0.20
0.30
0.40
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.20
2.40
2.60
2.80
3.00
3.50
4.00
5.00
6.00
7.00
(Hz)
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 =
-0.004
-0.014
-0.024
-0.020
-0.015
-0.041
-0.046
-0.016
-0.025
-0.035
-1.76
-8.28
-18.4
-29.3
-40.1
-51.5
-65.2
-75.0
-113.0
-83.6
-82.0
-83.7
-87.8
-85.8
-82.0
-83.5
-88.2
-99.9
-87.2
-83.1
-82.1
-83.1
-84.6
-86.2
-87.8
-89.3
0.00
0.007
0.022
0.033
0.031
0.014
Amp
(dB)
Actual Corner Frequency (fc) in Hz
Normalized Delay
Phase
(deg)
-25.7
-51.6
-77.9
-105
-133
-148
-163
-179
-196
-213
-232
-251
-272
-296
-323
-392
-467
-522
-558
-578
-594
-606
-611
-616
-440
-444
-447
-450
-280
-289
-295
-301
-305
-134
-140
-148
-154
-157
-160
-163
-164
0.00
Delay
0.713
0.716
0.724
0.740
0.767
0.811
0.840
0.872
0.908
0.946
0.989
1.04
1.12
1.23
1.40
1.65
2.14
1.86
1.19
0.753
0.217
0.198
0.182
0.168
0.126
0.099
0.081
0.067
0.057
0.040
0.030
0.018
0.013
0.009
0.007
0.005
0.004
0.517
0.381
0.296
0.265
0.239
(sec)
1
24
-100
-0.0
1.2
1.0
0.8
0.6
0.4
0.2
-20
-40
-60
-80
4.0
2.0
0.8
0.0
0
0.1
0.1
0
Frequency Response
Delay (Normalized)
Step Response
0.15
2
1
Normalized Frequency(f/fc)
Normalized Time (1/f sec)
8-Pole, 6-Zero
Elliptic, 1.77
Low-Pass
Normalized Time (1/f sec)
2
3
4
5 6 7 8
3
2
4
1.0
5
3
6
7 8 9
2
3
1.0
4
4
5 6 7
1.5
10.0
5