Fixed Frequency

D01 Series

8-, 6-, 4-Pole

Low-Pass Filters

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

2

Model

D01L8B

D01L6B

D01L4B

Product Specifications

Transfer Function

8-Pole, Butterworth

6-Pole, Butterworth

4-Pole, Butterworth

Size

1.80” x 0.80” x 0.30”

1.80” x 0.80” x 0.30”

1.80” x 0.80” x 0.30”

100 Hz to 1 MHz

100 Hz to 1 MHz

100 Hz to 1 MHz

Theoretical Transfer

Appendix A

Appendix A

Appendix A

Characteristics

Page 9

Page 8

Page 7

Passband Ripple

0.0 dB

0.0 dB

0.0 dB

(theoretical)

DC Voltage Gain

0 ± 0.1 dB max.

0 ± 0.1 dB max.

0 ± 0.1 dB max.

(non-inverting)

0 ± 0.02 dB typ.

0 ± 0.02 dB typ.

0 ± 0.2 dB typ.

Stopband

Attenuation Rate

48 dB/octave

36 dB/octave

24 dB/octave

Cutoff Frequency

± 5% max.

± 5% max.

± 5% max.

Stability

± 0.02%/°C

± 0.02%/°C

± 0.02%/°C

Amplitude

-3 dB

-3 dB

-3 dB

Phase

-360°

-270°

-180°

Filter Attenuation

0.12 dB

0.12 dB

0.12 dB

(theoretical)

3.01 dB

3.01 dB

3.01 dB

60.0 dB

60.0 dB

60.0 dB

80.0 dB

80.0 dB

80.0 dB

Total Harmonic

1 kHz

< -80 dB typ.

1 kHz

< -80 dB typ.

1 kHz

< -80 dB typ.

100 kHz

< -65 dB typ.

100 kHz

< -65 dB typ.

100 kHz

< -65 dB typ.

Wide Band Noise

250

mVrms typ.

160

mVrms typ.

70

mVrms typ.

(20 Hz - 4 MHz)

Narrow Band Noise

30

mVrms typ.

20

mVrms typ.

20

mVrms typ.

(20 Hz - 100 kHz)

Filter Mounting

Assembly

NA

NA

NA

1. Phase Match and Amplitude Accuracy in the pass band are within ± 5% max. of the theoretical transfer characteristics.

NA - Not available