D61 Series
Fixed Frequency
Model
Product Specifications
Transfer Function
Size
Range f
c
D61
Theoretical Transfer
Characteristics
Passband Ripple
(theoretical)
4-Pole
Low-Pass Filters
D61L4L
Low-Pass
4-Pole, Bessel
1.8” x 0.8” x 0.5”
0.02 Hz to 1.00 Hz
0.0 dB
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
Transfer Function
Size
Range f
c
D61
Theoretical Transfer
Characteristics
Passband Ripple
(theoretical)
D61L4B
Low-Pass
4-Pole, Butterworth
1.8” x 0.8” x 0.5”
0.02 Hz to 1.00 Hz
0.0 dB
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
Model
D61H4B
High-Pass
4-Pole, Butterworth
1.8” x 0.8” x 0.5”
0.02 Hz to 1.00 Hz
0.0 dB
0 ± 0.2 dB to 100 kHz
0 ± 0.5 dB to 120 kHz
120 kHz
(-6dB) 1 MHz
24 dB/octave
f
c
± 0.01% /°C
-3dB
-180°
40 dB
30 dB
3.01 dB
0.02 dB
0 - 100 kHz
± 2% max.
DC Voltage Gain
(non-inverting)
Voltage Gain
(non-inverting)
Power Bandwidth
Small Signal Bandwidth
Stopband
Attenuation Rate
Cutoff Frequency
Stability
Amplitude
Phase
Filter Attenuation
(theoretical)
24 dB/octave
f
c
± 0.01% /°C
-3dB
-180°
0.67 dB
3.01 dB
30.0 dB
40.0 dB
0 - 0.8 f
c
0.8 fc - 1.0 f
c
± 2% max.
24 dB/octave
f
c
± 0.01% /°C
-3dB
-121°
1.86 dB
3.01 dB
30.0 dB
40.0 dB
0 - f
c
± 2% max.
Stopband
Attenuation Rate
Cutoff Frequency
Stability
Amplitude
Phase
Filter Attenuation
(theoretical)
0.80 f
c
1.00 f
c
2.37 f
c
3.16 f
c
± 2° max.
± 1° typ.
± 3° max.
± 1.5° typ.
0.80 f
c
1.00 f
c
3.50 f
c
4.72 f
c
± 2° max.
± 1° typ.
0.31 f
c
0.42 f
c
1.00 f
c
2.00 f
c
± 3° max.
± 1.5° typ.
Phase Match
1
Phase Match
1
Amplitude Accuracy
(theoretical)
0 - 0.8 f
c
± 0.2 dB max.
± 0.1 dB typ.
0.8 fc - 1.0 f
c
± 0.3 dB max.
± 0.15 dB typ.
0 - f
c
± 0.2 dB max.
± 0.1 dB typ.
Amplitude Accuracy
(theoretical)
± 0.30 dB max.
± 0.15 dB typ.
1.25 f
c
-100 kHz ± 0.20 dB max.
± 0.10 dB typ.
400
mVrms
typ.
100
mVrms
typ.
1.0 - 1.25 f
c
Wide Band Noise
(5 Hz - 2 MHz)
200
mVrms
typ.
50
mVrms
typ.
200
mVrms
typ.
50
mVrms
typ.
Wide Band Noise
(5 Hz - 2 MHz)
Narrow Band Noise
(20 Hz - 100 kHz)
Narrow Band Noise
(20 Hz - 100 kHz)
Filter Mounting
Assembly
FMA-01A
FMA-01A
Filter Mounting
Assembly
FMA-01A
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
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
FREQUENCYDEVICES [ FREQUENCY DEVICES, INC. ]
