818L8B-1 Datasheet, PDF (3/14 Pages) Frequency Devices, Inc. – 2" x 4" 8-Pole Filters

818 Series
8-Bit Programmable
8-Pole
Low-Pass Filters
Model
Product Specifications
Transfer Function
Size
Range fc
Theoretical Transfer
Characteristics
Passband Ripple
(theoretical)
DC Voltage Gain
(non-inverting)
Stopband
Attenuation Rate
Cutoff Frequency
Stability
Amplitude
Phase
Filter Attenuation
(theoretical)
Phase Match¹
Amplitude Accuracy
(theoretical)
818L8B
818L8L
818L8E
818L8D80
8-Pole,
Butterworth
2.0” x 4.0” x 0.4”
1 kHz to 128 MHz
Appendix A
Page 9
0.0 dB
8-Pole,
Bessel
2.0” x 4.0” x 0.4”
1 kHz to 1.28 MHz
Appendix A
Page 4
0.0 dB
8-Pole, 6 zero,
Elliptic
2.0” x 4.0” x 0.4”
1 kHz to 1.28 MHz
Appendix A
Page 24
± 0.035 dB
8-Pole, 6 zero,
Constant Delay
2.0” x 4.0” x 0.4”
1 kHz to 1.28 MHz
Appendix A
Page 21
0.15 dB
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
48 dB/octave
48 dB/octave
80 dB min.
80 dB min.
fc
± 0.01% /°C
- 3 dB
-360°
± 3% max.
fc
± 0.01% /°C
- 3 dB
-182°
± 3% max.
fr
± 0.01% /°C
- 0.035 dB
- 323.5°
± 3% max.
fc
± 0.01% /°C
- 3 dB
-306°
± 3% max.
0.12 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
2.37 fc
3.16 fc
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
4.52 fc
6.07 fc
0.035 dB
3.01 dB
60.0 dB
80.0 dB
1.00 fr
1.13 fr
1.67 fr
1.77 fr
3.01 dB
60.0 dB
80.0 dB
1.00 fc
3.08 fc
3.57 fc
See page 5 & 6
See page 5 & 6
See page 5 & 6
See page 5 & 6
0 - 0.6 fc ± 0.5 dB max. 0 - fc
± 0.25 dB typ.
0.6 fc - 1.0 fc ± 1.0 dB max.
± 0.6 dB typ.
± 0.8 dB max.
± 0.4 dB typ.
0 - 0.8 fr ± 0.5 dB max.
± 0.25 dB typ.
0.8 fc - 1.0 fr ± 1.0 dB max.
± 0.5 dB typ.
0 - 0.8 fc ± 0.5 dB max.
± 0.25 dB typ.
0.8 fc - 1.0 fc ± 1.0 dB max.
± 0.5 dB typ.
Total Harmonic
Distortion @ 1 kHz
Wide Band Noise
(5 Hz - 2 MHz)
Narrow Band Noise
(5 Hz - 100 kHz)
Filter Mounting
Assembly
< - 88 dB typ.
300 µVrms typ.
75 µVrms typ.
FMA-04A
< - 88 dB typ.
300 µVrms typ.
75 µVrms typ.
FMA-04A
< - 88 dB typ.
350 µVrms typ.
75 µVrms typ.
FMA-04A
< - 88 dB typ.
300 µVrms typ.
75 µVrms typ.
FMA-04A
1.Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
3
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