D70 Series
8-, 6-, 4-Pole
Fixed Frequency
Low-Pass Filters
Model
D70L8B
D70L6B
D70L4B
Product Specifications
Transfer Function
Size
8-Pꢂleꢁ Butterwꢂrth
0.84” ꢀ 0.65” ꢀ 0.31”
100 Hz tꢂ 50 kHz
6-Pꢂleꢁ Butterwꢂrth
0.84” ꢀ 0.65” ꢀ 0.31”
100 Hz tꢂ 50 kHz
4-Pꢂleꢁ Butterwꢂrthꢁ
0.65” ꢀ 0.51” ꢀ 0.31”
100 Hz tꢂ 50 kHz
Range fc
Theoretical Transfer
Characteristics
Appendiꢀ A
Page 9
Appendiꢀ A
Page 8
Appendiꢀ A
Page 7
Passband Ripple
(theꢂretical)
0.0 dB
0.0 dB
0.0 dB
DC Voltage Gain
(nꢂn-inverting)
0 ± 0.0± dB typ.
0 ± 0.0± dB typ.
0 ± 0.0± dB typ.
Stopband
Attenuation Rate
48 dB/ꢂctave
36 dB/ꢂctave
±4 dB/ꢂctave
Cutoff Frequency
Stability
Amplitude
Phase
ꢃc
± ±2 maꢀ.
ꢃc
± ±2 maꢀ.
ꢃc
± ±2 maꢀ.
± 0.0±2 /°C
-3 dB
± 0.0±2 /°C
-3 dB
± 0.0±2 /°C
-3 dB
-360°
-±70°
-180°
Filter Attenuation
(theꢂretical)
0.1± dB
3.01 dB
60.0 dB
80.0 dB
0.80 ꢃc
1.00 ꢃc
±.37 ꢃc
3.16 ꢃc
0.±9 dB
3.01 dB
60.0 dB
80.0 dB
0.80 ꢃc
1.00 ꢃc
3.16 ꢃc
4.64 ꢃc
0.67 dB
3.01 dB
60.0 dB
80.0 dB
0.80 ꢃc
1.00 ꢃc
5.6± ꢃc
10.0 ꢃc
1
Phase Match
1
Amplitude Accuracy
(theꢂretical)
Total Harmonic
Distortion @ 1 kHz
< -90 dB
< -90 dB
< -90 dB
Wide Band Noise
(±0 Hz - 4 MHz)
±00 mVrms typ.
±00 mVrms typ.
±00 mVrms typ.
Narrow Band Noise
(5 Hz - 50 kHz)
50 mVrms typ.
50 mVrms typ.
50 mVrms typ.
Filter Mounting
Assembly
FMA-01A
FMA-01A
FMA-01A
1. Phase Match and Amplitude Accuracy are within ±±2 maꢀ.ꢁ ±12 typ. ꢂꢃ the theꢂretical transꢃer characteristics.
2
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