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
1.0 Hz to 100 kHz
Fixed Frequency
D66 & DP66 Series
32 Pin DIP
6-Pole Filters
Description
The D66 and DP66 Series of small 6-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 D66 filters can serve in low-pass or high-
pass applications (DP66, low-pass only) or be
combined to create custom band-pass or band-
reject filters. These fully self-contained units
require no external components or adjustments.
Each model comes factory tuned to a user-specified
corner frequency between 1 Hz and 100 kHz (DP66,
1 Hz to 5 kHz) 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 to 16 bit resolution.
Compact 1.8"L x 0.8"W x 0.3"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
Acoustic and vibration analysis and control
Noise elimination
Signal reconstruction
Available Low-Pass Models:
......................
Page
D66L6B
6-pole Butterworth ....................................2
DP66L6B 6-pole Butterworth (Low Power) ..............2
D66L6L
6-pole Bessel ............................................2
DP66L6L 6-pole Bessel (Low Power) ......................2
Available High-Pass Models:
..................................
D66H8B 6-pole Butterworth ....................................2
General Specifications: ........................................
Pin-out/package data & ordering information ..........3
1
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 f
c
Range f
c
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
f
c
1% max.
f
c
1% max.
Cutoff Frequency
f
c
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 f
c
1.89 dB 0.80 f
c
Filter Attenuation
80.0 dB .21 f
c
(theoretical)
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
(theoretical)
60.0 dB .32 f
c
60.0 dB 3.16 f
c
60.0 dB 5.41 f
c
3.01 dB 1.00 f
c
80.0 dB 4.64 f
c
80.0 dB 7.99 f
c
0.00 dB 2.5 f
c
Phase Match
1
0 - 0.8 f
c
2 max.
0 - f
c
2 max.
Phase Match
1
f
c
- 100 kHz
3 max.
1 typ.
1 typ.
1.5 typ.
0.8 f
c
- 1.0 f
c
3 max.
1.5 typ.
Amplitude Accuracy
0 - 0.8 f
c
0.2 dB max.
0 - f
c
0.2 dB max.
Amplitude Accuracy
1.0 - 1.25 f
c
0.3 dB max.
(theoretical)
0.1 dB typ.
0.1 dB typ.
(theoretical)
0.15 dB typ.
0.8 f
c
- 1.0 f
c
0.3 dB max.
1.25f
c
-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
Specification
(25C and Vs 15 Vdc)
D66 & DP66 Series
Pin-Out and Package Data
Ordering Information
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-00D66-00
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
Filter Type
L - Low Pass
H - High Pass
Analog Input Characteristics
1
Impedance
10 k
W min.
Voltage Range
10 Vpeak
Max. Safe Voltage
Vs
Analog Output Characteristics
Impedance(Closed Loop)
1
W typ.
10
W max.
Linear Operating Range
10 V
Maximum Current
2
2 mA
Offset Voltage
3
2 mV typ.
20 mV max.
Offset Temp. Coeff.
50
mV / C
Power Supply (V)
Rated Voltage
15 Vdc
Operating Range
5 to 18 Vdc
Maximum Safe Voltage
18 Vdc
Quiescent Current D66
19 mA typ.
30 mA max.
Quiescent Current DP66
7.0
mA typ.
8.0
mA max.
Temperature
Operating
-
0 to + 70 C
Storage
- 25 to + 85 C
Ordering Information
Side View
0.80
0.025 dia.
All dimensions are in inches
All case dimensions
0.01"
Bottom View
+VS
OUT
-VS
IN
GND
0.80
0.70
0.10
0.00
0.00
0.15
0.45
0.55
1.55
1.65
1.80
OS
4
0.15 (min)
Front View
0.30
1.80
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.
4. Units operate with or with out offset pin connected.
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
1.00 Hz to 100 kHz.
D66L6B-849 Hz
- 3 dB Corner Frequency
5
e.g., 849 Hz
2.50 kHz
33.3 kHz
Transfer Function
B - Butterworth
L - Bessel
Power Level
D Standard Power
DP Low Power
DC Offset Adjustment
Vs
- Vs
20 k
W
(Cermet)
Do not connect
if trim is not
required.
OS
3
Filter Mounting Assembly-See FMA-01A
Low-Pass
6-Pole
Appendix A
Bessel
3
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
Fax on Demand: 978/521-5178
Normalized Frequency(f/fc)
Amp (dB)
Normalized Time (1/f sec)
Dela
y (sec)
Normalized Time (1/f sec)
Step Response (V/V)
Frequency Response
Delay (Normalized)
Step Response
0.1
1.0
10.0
2 3 4 5678
2 3 4 567
-100
-80
-60
-40
-20
0
0.1
1.0
2
3
4 5 6 7 8 9
0.0
0.5
1.0
1.5
0.15
0
1
2
3
4
5
-0.0
-0.2
0.2
0.4
0.6
0.8
1.0
1.2
(sec)
Theoretical Transfer Characteristics
1
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.85
0.90
0.95
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.25
2.50
2.75
3.00
3.25
3.50
4.00
5.00
6.00
7.00
8.00
9.00
10.0
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).
Actual Delay =
Normalized Delay
Actual Corner Frequency (fc) in Hz
f/fc
(Hz)
Amp
(dB)
Phase
(deg)
Delay
-65.2
-73.2
-80.1
-86.2
-91.6
-30.7
-34.5
-38.1
-44.7
-55.9
-12.6
-14.2
-18.3
-22.6
-26.7
-6.23
-7.29
-8.46
-9.74
-11.1
-465
-476
-484
-490
-495
-385
-398
-408
-426
-449
-287
-300
-328
-351
-369
-216
-232
-246
-261
-275
.036
.026
.020
.015
.013
.156
.131
.111
.083
.052
.357
.335
.279
.228
187
.422
.416
.401
.393
.376
-2.70
-3.01
-3.68
-4.44
-5.29
-1.05
-1.44
-1.89
-2.15
-2.42
0.00
-0.029
-0.116
-0.261
-0.465
-0.728
-147
-155
-170
-186
-201
-92.9
-108
-124
-132
-139
0.00
-15.5
-31.0
-46.5
-62.0
-77.4
.430
.430
.429
.428
.426
.430
.430
.430
.430
.430
.430
.430
.430
.430
.430
.430
Low-Pass
6-Pole
Appendix A
Butterworth
8
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
Fax on Demand: 978/521-5178
Normalized Frequency(f/fc)
Amp (dB)
Normalized Time (1/f sec)
Dela
y (sec)
Normalized Time (1/f sec)
Step Response (V/V)
Frequency Response
Delay (Normalized)
Step Response
0.1
1.0
10.0
2
3 4 5 6 78
2
3 4 5 6 7
-100
-80
-60
-40
-20
0
0.1
1.0
2
3
4
5 6 7 8 9
0.0
1.0
2.0
1.5
0.15
0
1
2
3
4
5
-0.0
0.2
0.4
0.6
0.8
1.0
1.2
(sec)
Theoretical Transfer Characteristics
1
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.85
0.90
0.95
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.25
2.50
2.75
3.00
3.25
3.50
4.00
5.00
6.00
7.00
8.00
9.00
10.0
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).
Actual Delay =
Normalized Delay
Actual Corner Frequency (fc) in Hz
f/fc
(Hz)
Amp
(dB)
Phase
(deg)
Delay
-93.4
-101
-108
-115
-120
-57.3
-61.4
-65.3
-72.2
-83.9
-33.5
-36.1
-42.3
-47.8
-52.7
-503
-508
-512
-515
-518
-465
-471
-476
-484
-496
-419
-425
-439
-450
-458
.017
.012
.0097
.0076
.0062
.071
.060
.052
.039
.025
.193
.171
.132
.105
.086
-17.6
-21.2
-24.5
-27.7
-30.6
-1.88
-3.01
-6.17
-9.96
-13.9
-0.009
-0.060
-0.289
-0.578
-1.080
0.00
0.00
0.00
0.00
0.00
-0.001
-368
-382
-393
-403
-412
-252
-270
-304
-331
-352
-140
-167
-198
-215
-233
0.00
-22.2
-44.5
-67.2
-90.4
-115
.417
.345
.291
.251
.219
1.03
1.00
.845
.660
.518
.731
.803
.911
.970
1.02
.615
.617
.624
.637
.656
.685
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