Fixed Frequency

D70 Series

8-, 6-, 4-Pole

High-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

4

1. Phase Match and Amplitude Accuracy are within ±2% max., ±1% typ. of the theoretical transfer characteristics.

Model

D70H8B

D70H6B

D70H4B

Product Specifications

Transfer Function

8-Pole, Butterworth

6-Pole, Butterworth

4-Pole, Butterworth

Size

0.84” x 0.65” x 0.31”

0.84” x 0.65” x 0.31”

0.65” x 0.51” x 0.31”

100 Hz to 50 kHz

100 Hz to 50 kHz

100 Hz to 50 kHz

Theoretical Transfer

Appendix A

Appendix A

Appendix A

Characteristics

Page 29

Page 28

Page 27

Passband Ripple

0.0 dB

0.0 dB

0.0 dB

(theoretical)

Voltage Gain

0 ± 0.02 dB typ.

0 ± 0.02 dB typ.

0 ± 0.02 dB typ.

(non-inverting)

Power Bandwidth

120 kHz

120 kHz

120 kHz

Small Signal Bandwidth

(-6dB) 1 MHz

(-6dB) 1 MHz

(-6dB) 1 MHz

Stopband

Attenuation Rate

48 dB/octave

36 dB/octave

24 dB/octave

Cutoff Frequency

± 2% max.

± 2% max.

± 2% max.

Stability

± 0.02% /°C

± 0.02% /°C

± 0.02% /°C

Amplitude

-3 dB

-3 dB

-3 dB

Phase

-360°

-270°

-180°

Filter Attenuation

80 dB

80 dB

80 dB

(theoretical)

60 dB

60 dB

60 dB

3.01 dB

3.01 dB

3.01 dB

00.0 dB

00.0 dB

00.0 dB

(theoretical)

Total Harmonic

Distortion @ 1 kHz

< -80 dB

< -80 dB

< -80 dB

Wide Band Noise

400

mVrms typ.

400

mVrms typ.

400

mVrms typ.

(20 Hz - 4 MHz)

Narrow Band Noise

100

mVrms typ.

100

mVrms typ.

100

mVrms typ.

(20 Hz - 100 kHz)

Filter Mounting

Assembly

FMA-01A

FMA-01A

FMA-01A