FREQUENCYDEVICES D61H4B

D61 Series
32-Pin DIP
4 - Pole Filters
0.02 Hz to 1.00 Hz
Fixed Frequency
Description
The D61 Series of small 4-pole fixed-frequency,
precision active filters provide high performance
linear active filtering in a compact 32-pin DIP
package, with a broad range of corner
frequencies and a choice of transfer functions.
Individual D61 filters can serve in low-pass or highpass applications or be combined to create custom
band-pass or band reject filters. These fully selfcontained units require no external components or
adjustments. Each model comes factory tuned to a
user-specified corner frequency between 0.02 Hz
and 1.00 Hz and operate with low total harmonic
distortion over a wide dynamic input voltage range
from non-critical +/-5V to +/-18V power supplies.
Features/Benefits:
• Low harmonic distortion and wide signal-to-noise
ratio
• Compact 1.8"L x 0.8"W x 0.5"H minimizes board
space requirements.
• Plug-in ready-to-use, reducing engineering design
and manufacturing cycle time.
• Factory tuned, no external clocks or adjustments
needed
• Broad range of transfer characteristics and corner
frequencies to meet a wide range of applications.
Applications
• Anti-alias filtering
• Data acquisition systems
• Communication systems and electronics
• Medical electronics equipment and research
• Aerospace, navigation and sonar applications
• Sound and vibration testing
Available Low-Pass Models: . . . . . . . . . . .Page
D61L4B
D61L4L
4-pole Butterworth . . . . . . . . . . . . . . . .2
4-pole Bessel . . . . . . . . . . . . . . . . . . . .2
Available High-Pass Models: . . . . . . . . . . . . . . .
D61H4B
4-pole Butterworth . . . . . . . . . . . . . . . .2
General Specifications:
Pin-out/package data & ordering information . . . .3
• Acoustic and vibration analysis and control
• Noise elimination
• Signal reconstruction
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
D61 Series
4-Pole
Low-Pass Filters
Fixed Frequency
Model
D61L4B
D61L4L
Model
Product Specifications
Low-Pass
Low-Pass
Transfer Function
4-Pole, Butterworth
4-Pole, Bessel
Transfer Function
4-Pole, Butterworth
Size
1.8” x 0.8” x 0.5”
1.8” x 0.8” x 0.5”
Size
1.8” x 0.8” x 0.5”
Range fc
D61
0.02 Hz to 1.00 Hz
0.02 Hz to 1.00 Hz
Range fc
D61
0.02 Hz to 1.00 Hz
Theoretical Transfer
Characteristics
Appendix A
Page 7
Appendix A
Page 2
Theoretical Transfer
Characteristics
Appendix A
Page 27
Passband Ripple
0.0 dB
0.0 dB
Passband Ripple
0.0 dB
High-Pass
(theoretical)
DC Voltage Gain
(non-inverting)
(theoretical)
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
Voltage Gain
(non-inverting)
120 kHz
Small Signal Bandwidth
(-6dB) 1 MHz
Stopband
Attenuation Rate
24 dB/octave
± 2% max.
Cutoff Frequency
Stability
Amplitude
Phase
fc
± 0.01% /°C
-3dB
-180°
0.80 fc
1.00 fc
3.50 fc
4.72 fc
Filter Attenuation
40 dB
30 dB
3.01 dB
0.02 dB
24 dB/octave
Cutoff Frequency
Stability
Amplitude
Phase
fc
± 0.01% /°C
-3dB
-180°
Filter Attenuation
0.67 dB
3.01 dB
30.0 dB
40.0 dB
0.80 fc
1.00 fc
2.37 fc
3.16 fc
0 - 0.8 fc
± 2° max.
± 1° typ.
± 3° max.
± 1.5° typ.
0 - fc
± 2° max.
± 1° typ.
± 0.2 dB max.
± 0.1 dB typ.
0.8 fc - 1.0 fc ± 0.3 dB max.
± 0.15 dB typ.
0 - fc
± 0.2 dB max.
± 0.1 dB typ.
200 mVrms typ.
200 mVrms typ.
Wide Band Noise
50 mVrms typ.
50 mVrms typ.
Narrow Band Noise
FMA-01A
FMA-01A
Filter Mounting
Assembly
Phase Match1
0.8 fc - 1.0 fc
Amplitude Accuracy
(theoretical)
Wide Band Noise
(5 Hz - 2 MHz)
Narrow Band Noise
(20 Hz - 100 kHz)
Filter Mounting
Assembly
0 - 0.8 fc
24 dB/octave
± 2% max.
fc
± 0.01% /°C
-3dB
-121°
1.86 dB
3.01 dB
30.0 dB
40.0 dB
0 ± 0.2 dB to 100 kHz
0 ± 0.5 dB to 120 kHz
Power Bandwidth
Stopband
Attenuation Rate
(theoretical)
D61H4B
(theoretical)
Phase Match1
Amplitude Accuracy
(theoretical)
(5 Hz - 2 MHz)
(20 Hz - 100 kHz)
0 - 100 kHz
± 2% max.
0.31 fc
0.42 fc
1.00 fc
2.00 fc
± 3° max.
± 1.5° typ.
1.0 - 1.25 fc
± 0.30 dB max.
± 0.15 dB typ.
1.25 fc -100 kHz ± 0.20 dB max.
± 0.10 dB typ.
400 mVrms typ.
100 mVrms typ.
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
D61 Series
Pin-Out and Package Data
Ordering Information
Specification
(25°C and Vs ± 15 Vdc)
1
Analog Input Characteristics
Impedance
10 kW min.
Voltage Range
± 10 Vpeak
Max. Safe Voltage
± Vs
0.80
Side View
0.025 dia.
Analog Output Characteristics
Impedance(Closed Loop)
1 W typ.
10 W max.
Linear Operating Range
± 10 V
2
Maximum Current
± 2 mA
3
02 mV typ.
Offset Voltage
10 mV max.
Offset Temp. Coeff.
50 mV / °C
Temperature
Operating
Storage
1.80
Front View
0.50
0.15 (min)
0.80
0.70
OUT
-VS OS4
+VS
Bottom View
GND
-
1.55
1.65
0.45
0.55
0.15
15 Vdc
5 to ± 18 Vdc
18 Vdc
12.5 mA typ.
20 mA max.
0.00
±
±
±
±
±
IN
0.10
0.00
1.80
Power Supply (±V)
Rated Voltage
Operating Range
Maximum Safe Voltage
Quiescent Current D61
All dimensions are in inches
All case dimensions ± 0.01"
Filter Mounting Assembly-See FMA-01A
0 to + 70 °C
- 25 to + 85 °C
Ordering Information
Notes:
1. Input and output signal voltage referenced to supply
common.
2. Output is short circuit protected to common.
DO NOT CONNECT TO ±Vs.
3. Adjustable to zero.
Filter Type
Transfer Function
L - Low Pass
H - High Pass
B - Butterworth
L - Bessel
DC Offset Adjustment
± Vs
D61L4B-0.05 Hz
Do not connect
if trim is not
required.
20 k W
(Cermet)
5
- 3 dB Corner Frequency
OS
4. Units operate with or without offset pin connected.
- Vs
e.g., 0.05 Hz
0.85 Hz
1.00 Hz
5. How to Specify Corner Frequency:
Corner frequencies are specified by attaching a three digit frequency designator to the basic
model number. Corner frequencies can range from 0.02 Hz to 1.00 Hz.
We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements,
recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements,
recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright.
IN-00D61-00
3
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
Low-Pass
4-Pole
Appendix A
Bessel
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.00
0.00
0.00
.336
0.10
-0.028
-12.1
.336
0.20
-0.111
-24.2
.336
0.30
-0.251
-36.3
.336
0.40
-0.448
-48.4
.336
0.50
-0.705
-60.6
.336
0.60
-1.02
-72.7
.336
0.70
-1.41
-84.8
.336
0.80
-1.86
-96.8
.335
0.85
-2.11
-103
.334
0.90
-2.40
-109
.333
0.95
-2.69
-115
.332
1.00
-3.01
-121
.330
1.10
-3.71
-133
.325
1.20
-4.51
-144
.318
1.30
-5.39
-156
.308
-166
1.40
-6.37
.295
-177
1.50
-7.42
.280
-187
1.60
-8.54
.263
-195
1.70
-9.71
.246
-204
1.80
-10.9
.228
1.90
-12.2
-212
.211
2.00
-13.4
-219
.194
2.25
-16.5
-235
.158
2.50
-19.5
-248
.129
2.75
-22.4
-259
.107
-267
3.00
-25.1
.089
-275
3.25
-27.6
.076
-281
3.50
-30.0
.065
-291
4.00
-34.4
.049
-305
5.00
-41.9
.031
6.00
-315
.021
-48.1
7.00
-321
.016
-53.4
8.00
-326
.012
-58.0
9.00
-330
.009
-62.0
10.0
-333
.008
-65.7
Frequency Response
Amp (dB)
0
-20
-40
-60
-80
-100
0.1
2
3 4 5 6 78
1.0 2 3 4 5 6 7 10.0
Normalized Frequency(f/fc)
Delay (Normalized)
Delay (sec)
1.0
0.5
0.0
0.1
0.15 2
3
4
5 6 7 89
1.0 1.5
Normalized Time (1/f sec)
Step Response (V/V)
Step Response
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
2
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
0
1
2
3
4
Normalized Time (1/f sec)
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
5
Low-Pass
4-Pole
Appendix A
Butterworth
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.00
0.00
0.00
.416
0.10
0.00
-15.0
.418
0.20
0.00
-30.1
.423
0.30
-0.00
-45.5
.433
0.40
-0.003
-61.4
.449
0.50
-0.017
-78.0
.474
0.60
-0.072
-95.7
.511
0.70
-0.243
-115
.558
0.80
-0.674
-136
.604
0.85
-1.047
-147
.619
0.90
-1.555
-158
.622
0.95
-2.21
-169
.612
1.00
-3.01
-180
.588
1.10
-4.97
-200
.513
1.20
-7.24
-217
.427
1.30
-9.62
-231
.350
1.40
-12.0
-242
.289
1.50
-14.3
-252
.241
1.60
-16.4
-260
.204
1.70
-18.5
-266
.175
1.80
-20.5
-272
.152
1.90
-22.3
-277
.134
2.00
-24.1
-282
.119
2.25
-28.2
-291
.091
2.50
-31.8
-299
.072
2.75
-35.1
-304
.059
3.00
-38.2
-309
.049
3.25
-41.0
-313
.041
3.50
-43.5
-317
.035
4.00
-48.2
-322
.027
5.00
-55.9
-330
.017
6.00
-62.3
-335
.012
7.00
-67.6
-339
.009
8.00
-72.2
-341
.007
9.00
-76.3
-343
.005
-80.0
10.0
-345
.004
Frequency Response
Amp (dB)
0
-20
-40
-60
-80
-100
0.1
2
3 4 5 6 78
1.0 2 3 4 5 6 7 10.0
Normalized Frequency(f/fc)
Delay (Normalized)
Delay (sec)
2.0
1.0
0.0
0.1
0.15 2
3
4
5 6 7 89
1.0 1.5
Normalized Frequency(f/fc)
Step Response (V/V)
Step Response
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
0
7
1
2
3
4
Normalized Time (1/f sec)
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
5
High-Pass
4-Pole
Appendix A
Butterworth
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.10
-80.0
345
.418
-55.9
0.20
330
.423
-41.8
0.30
314
.433
-31.8
0.40
299
.449
-24.1
0.50
282
.474
0.60
-17.8
264
.511
0.70
-12.6
245
.558
0.80
-8.43
224
.604
0.85
-6.69
213
.619
202
0.90
-5.22
.622
0.95
-3.99
191
.612
1.00
-3.01
180
.588
1.20
-0.908
143
.427
.289
1.40
-0.285
118
.204
1.60
-0.100
100
1.80
-0.039
87.6
.152
2.00
-0.017
78.0
.119
61.4
2.50
-0.003
.072
-0.001
50.7
3.00
.049
0.00
37.8
4.00
.027
5.00
0.00
30.1
.017
6.00
0.00
25.1
.012
7.00
0.00
21.4
.009
0.00
8.00
18.8
.007
0.00
9.00
16.7
.005
10.0
0.00
15.0
.004
Frequency Response
Amp (dB)
0
-20
-40
-60
-80
-100
0.1
2
3 4 5 6 78
1.0 2 3 4 5 6 7 10.0
Normalized Frequency(f/fc)
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
27
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