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Fixed Frequency
D66 & DP66 Series
6-Pole
Low-Pass and High-Pass Filters
25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com
2
1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
Model
D66L6B & DP66L6B
D66L6L & DP66L6L
Model
D66H6B
Product Specifications
Low-Pass
Low-Pass
High-pass
Transfer Function
6-Pole, Butterworth
6-Pole, Bessel
Transfer Function
6-Pole, Butterworth
Size
1.8” x 0.8” x 0.3”
1.8” x 0.8” x 0.3”
Size
1.8” x 0.8” x 0.3”
Range fc
Range fc
D66
1 Hz to 100 kHz
1 Hz to 100 kHz
D66
1 Hz to 100 kHz
DP66
1 Hz to 5 kHz
1 Hz to 5 kHz
DP66
Not Available
Theoretical Transfer
Appendix A
Appendix A
Theoretical Transfer
Appendix A
Characteristics
Page 8
Page 3
Characteristics
Page 28
Passband Ripple
0.0 dB
0.0 dB
Passband Ripple
0.0 dB
(theoretical)
(theoretical)
DC Voltage Gain
0 ± 0.1 dB max.
0 ± 0.1 dB max.
Voltage Gain
0 ± 0.1 dB to 100 kHz
(non-inverting)
0 ± 0.05 dB typ.
0 ± 0.05 dB typ.
(non-inverting)
0 ± 0.05 dB to 120 kHz
Stopband
Stopband
Attenuation Rate
36 dB/octave
36 dB/octave
Attenuation Rate
36 dB min.
Power Bandwidth
(-6dB) 1 MHz
Power Bandwidth
120 kHz
Cutoff Frequency
fc
± 1% max.
fc
± 1% max.
Cutoff Frequency
fc
± 1% max.
Stability
± 0.01% /°C
± 0.01% /°C
Stability
± 0.01% /°C
Amplitude
-3dB
-3dB
Amplitude
-3dB
Phase
-270°
-155°
Phase
-270°
Filter Attenuation
0.29 dB
0.80 fc
1.89 dB
0.80 fc
Filter Attenuation
80.0 dB
.21 fc
(theoretical)
3.01 dB
1.00 fc
3.01 dB
1.00 fc
(theoretical)
60.0 dB
.32 fc
60.0 dB
3.16 fc
60.0 dB
5.41 fc
3.01 dB
1.00 fc
80.0 dB
4.64 fc
80.0 dB
7.99 fc
0.00 dB
2.5 fc
Phase Match1
0 - 0.8 fc
± 2° max.
0 - fc
± 2° max.
Phase Match1
fc - 100 kHz
± 3° max.
± 1° typ.
± 1° typ.
± 1.5° typ.
0.8 fc - 1.0 fc
± 3° max.
± 1.5° typ.
Amplitude Accuracy
0 - 0.8 fc
± 0.2 dB max.
0 - fc
± 0.2 dB max.
Amplitude Accuracy
1.0 - 1.25 fc
± 0.3 dB max.
(theoretical)
± 0.1 dB typ.
± 0.1 dB typ.
(theoretical)
± 0.15 dB typ.
0.8 fc - 1.0 fc± 0.3° dB max.
1.25fc-100kHz ± 0.2 dB max.
± 0.15° dB typ.
± 0.1 dB typ.
Total Harmonic
Total Harmonic
Distortion @ 1 kHz
Distortion @ 1 kHz
D66
<-100 dB typ.
<-100 dB typ.
D66
<-88 dB typ.
DP66
<-80 dB typ.
<-80 dB typ.
Wide Band Noise
200
mVrms typ.
200
mVrms typ.
Wide Band Noise
400
mVrms typ.
(5 Hz - 2 MHz)
(5 Hz - 2 MHz)
Narrow Band Noise
50
mVrms typ.
50
mVrms typ.
Narrow Band Noise
100
mVrms typ.
(20 Hz - 100 kHz)
(20 Hz - 100 kHz)
Filter Mounting
Filter Mounting
Assembly
FMA-01A
FMA-01A
Assembly
FMA-01A
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