D01 Series
8-, 6-, 4-Pole
Low-Pass Filters
Fixed Frequency
Model
D01L8L
D01L6L
D01L4L
Product Specifications
Transfer Function
Size
8-Pole, Bessel
6-Pole, Bessel
4-Pole, Bessel
1.80” x 0.80” x 0.30”
100 Hz to 1 MHz
1.80” x 0.80” x 0.30”
100 Hz to 1 MHz
1.80” x 0.80” x 0.30”
100 Hz to 1 MHz
Range fc
Theoretical Transfer
Characteristics
Appendix A
Page 4
Appendix A
Page 3
Appendix A
Page 2
Passband Ripple
(theoretical)
0.0 dB
0.0 dB
0.0 dB
DC Voltage Gain
(non-inverting)
0 ± 0.1 dB max.
0 ± 0.2 dB typ.
0 ± 0.1 dB max.
0 ± 0.2 dB typ.
0 ± 0.1 dB max.
0 ± 0.2 dB typ.
Stopband
Attenuation Rate
48 dB min.
36 dB/octave
24 dB/octave
Cutoff Frequency
Stability
Amplitude
Phase
fc
± 5% max. fc
± 5% max. fc
± 5% max.
± 0.02%/°C
-3 dB
-182°
± 0.02%/°C
-3 dB
± 0.02%/°C
-3 dB
-155°
-121°
Filter Attenuation
(theoretical)
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
4.52 fc
6.07 fc
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
5.41 fc
7.99 fc
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
8.48 fc
15.12 fc
Phase Match1
Amplitude Accuracy1
Total Harmonic
Distortion @ 2.5 VRMS
1 kHz
100 kHz
< -80 dB typ. 1 kHz
< -65 dB typ. 100 kHz
< -80 dB typ. 1 kHz
< -65 dB typ. 100 kHz
< -80 dB typ.
< -65 dB typ.
Wide Band Noise
250 µVrms typ.
30 µVrms typ.
160 µVrms typ.
20 µVrms typ.
70 µVrms typ.
Narrow Band Noise
20 µVrms typ.
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
3
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