D64 & DP64 Series
4-Pole
Low-Pass Filters
Fixed Frequency
Model
D64L4B & DP64L4B
D64L4L & DP64L4L
D64L4Y2 & DP64L4Y2
D64L4Y5 & DP64L4Y5
Product Specifications
Transfer Function
4-Pole, Butterworth
1.8” x 0.8” x 0.3”
4-Pole, Bessel
4-Pole, Chebychev,
1.8” x 0.8” x 0.3”
4-Pole, Chebychev,
0.5 dB Ripple
Size
1.8” x 0.8” x 0.3”
1.8” x 0.8” x 0.3”
Range fc
D64
1 Hz to 100 kHz
1 Hz to 5 kHz
1 Hz to 100 kHz
1 Hz to 5 kHz
1 Hz to 100 kHz
1 Hz to 5 kHz
1 Hz to 100 kHz
1 Hz to 5 kHz
DP64
Theoretical Transfer
Characteristics
Appendix A
Page 7
Appendix A
Page 2
Appendix A
Page 12
Appendix A
Page 15
Passband Ripple
(theoretical)
0.0 dB
0.0 dB
0.20 dB
0.50 dB
DC Voltage Gain
(non-inverting)
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
Stopband
Attenuation Rate
24 dB/octave
24 dB/octave
1% max. fc
24 dB/octave
1% max. fc
24 dB/octave
1% max. fc
Cutoff Frequency
Stability
Amplitude
Phase
fc
1% max.
0.01% /°C
-3dB
0.01% /°C
0.01% /°C
0.01% /°C
-3dB
-121°
-3dB
-231°
-3dB
-245°
-180°
Filter Attenuation
(theoretical)
0.67 dB
3.01 dB
30.0 dB
40.0 dB
0.80 fc
1.00 fc
2.37 fc
3.16 fc
1.86 dB
3.01 dB
30.0 dB
40.0 dB
0.80 fc
1.00 fc
3.50 fc
4.72 fc
-0.20 dB
3.01 dB
30.0 dB
40.0 dB
0.80 fc -0.43 dB
1.00 fc 3.01 dB
1.89 fc 30.0 dB
2.46 fc 40.0 dB
0.80 fc
1.00 fc
1.80 fc
2.33 fc
1
Phase Match
0 - 0.8 fc
2° max. 0 - fc
1° typ.
2° max.
1° typ.
0 - 0.8 fc
2° max. 0 - 0.8 fc
1° typ.
3° max. 0.8 fc - 1.0 fc
1.5° typ.
2° max.
1° typ.
3° max.
1.5° typ.
0.8 fc - 1.0 fc
3° max.
0.8 fc - 1.0 fc
1.5° typ.
Amplitude Accuracy
(theoretical)
0 - 0.8 fc
0.2 dB max. 0 - fc
0.1 dB typ.
0.2 dB max. 0 - 0.8 fc
0.1 dB typ.
0.2 dB max. 0 - 0.8 fc
0.1 dB typ.
0.2 dB max.
0.1 dB typ.
0.3 dB max.
0.15 dB typ.
0.8 fc - 1.0 fc 0.3 dB max.
0.15 dB typ.
0.8 fc - 1.0 fc 0.3 dB max. 0.8 - 1.0 fc
0.15 dB typ.
Total Harmonic
Distortion @ 1 kHz
D64
<-100 dB
<-80 dB
<-100 dB
<-80 dB
<-88 dB
<-80 dB
<-88 dB
<-80 dB
DP64
Wide Band Noise
(5 Hz - 2 MHz)
200 µVrms typ.
200 µVrms typ.
200 µVrms typ.
200 µVrms typ.
Narrow Band Noise
(20 Hz - 100 kHz)
50 µVrms typ.
50 µVrms typ.
50 µVrms typ.
50 µVrms typ.
Filter Mounting
Assembly
FMA-01S
FMA-01S
FMA-01S
FMA-01S
1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
2
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
ETC [ ETC ]
