8-Pole, 6-Zero

Elliptic, 2.00

Low-Pass

Frequency Response

Appendix A

25

1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176

e-mail: sales@freqdev.com Web Address: http://www.freqdev.com

Normalized Time (1/f sec)

Normalized Time (1/f sec)

Delay

(Normalized)

Step Response

0.1

1.0

2

3

4

5 6 7 8 9

0.0

2.0

4.0

1.5

0.15

0.8

Normalized Frequency(f/fc)

0.1

1.0

10.0

2

3 4 5 6 78

2

3 4 5 6 7

-120

-100

-80

-60

-40

-20

0

0

1

2

3

4

5

-0.0

0.2

0.4

0.6

0.8

1.0

1.2

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

(sec)

Theoretical Transfer Characteristics

1

f/fc

(Hz)

Amp

(dB)

Phase

(deg)

Delay

4.00

5.00

6.00

7.00

2.40

2.60

2.80

3.00

3.50

1.85

1.90

1.95

2.00

2.20

1.50

1.60

1.70

1.75

1.80

1.00

1.10

1.20

1.30

1.40

0.75

0.80

0.85

0.90

0.95

0.50

0.55

0.60

0.65

0.70

8.00

9.00

10.0

0.00

0.10

0.20

0.30

0.40

-107.3

-108.6

-110.0

-111.5

-105.4

-105.1

-106.0

-121.3

-106.5

-105.0

-106.4

-123.6

-81.93

-87.78

-95.04

-106.6

-106.0

-50.35

-58.90

-67.54

-72.04

-76.79

-0.046

-7.910

-21.06

-31.96

-41.51

-0.040

-0.014

-0.001

-0.031

-0.036

-0.001

0.000

-0.007

-0.027

-0.045

0.00

-0.001

-0.015

-0.040

-0.042

-165

-167

-168

-149

-156

-160

-163

-307

-311

-315

-318

-325

-647

-650

-652

-654

-481

-623

-632

-639

-642

-645

-419

-525

-573

-597

-612

-268

-291

-317

-346

-378

-166

-185

-204

-225

-245

0.00

-31.9

-64.2

-97.0

-131

0.005

0.004

0.003

0.022

0.014

0.010

0.007

0.070

0.058

0.049

0.042

0.030

0.138

0.128

0.119

0.111

0.087

0.271

0.216

0.177

0.162

0.149

2.681

2.127

0.856

0.509

0.357

1.269

1.377

1.513

1.677

1.960

1.020

1.057

1.099

1.140

1.193

0.885

0.891

0.903

0.922

0.958