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
D64 & DP64 Series
32-Pin DIP
4 - Pole Filters
Available Low-Pass Models:
. . . . . . . . . . .
Page
D64L4B & DP64L4B 4-pole Butterworth . . . . . .2
D64L4L & DP64L4L
4-pole Bessel . . . . . . . . . .2
D64L4Y2 & DP64L4Y2 4-pole Cheby
(0.2 dB Ripple) . . . . . . . . .2
D64L4Y5 & DP64L4Y5 4-pole Cheby
(0.5 dB Ripple) . . . . . . . . .2
Available High-Pass Models:
D64H4B
4-pole Butterworth . . . . . . . . . . . . . . . .3
D64H4Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . .3
D64H4Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . .3
General Specifications:
Pin-out/package data & ordering information . . . .4
Description
The D64 and DP64 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 D64 filters can serve in low-pass or high-
pass applications (DP64, 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 (DP64,
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.
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
Features/Benefits:
Low harmonic distortion and wide signal-to-noise
ratio
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.
Fixed Frequency
D64 & DP64 Series
4-Pole
Low-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
D64L4B & DP64L4B
D64L4L & DP64L4L
D64L4Y2 & DP64L4Y2
D64L4Y5 & DP64L4Y5
Product Specifications
Transfer Function
4-Pole, Butterworth
4-Pole, Bessel
4-Pole, Chebychev,
4-Pole, Chebychev,
0.5 dB Ripple
Size
1.8" x 0.8" x 0.3"
1.8" x 0.8" x 0.3"
1.8" x 0.8" x 0.3"
1.8" x 0.8" x 0.3"
Range f
c
D64
1 Hz to 100 kHz
1 Hz to 100 kHz
1 Hz to 100 kHz
1 Hz to 100 kHz
DP64
1 Hz to 5 kHz
1 Hz to 5 kHz
1 Hz to 5 kHz
1 Hz to 5 kHz
Theoretical Transfer
Appendix A
Appendix A
Appendix A
Appendix A
Characteristics
Page 7
Page 2
Page 12
Page 15
Passband Ripple
0.0 dB
0.0 dB
0.20 dB
0.50 dB
(theoretical)
DC Voltage Gain
0 0.1 dB max.
0 0.1 dB max.
0 0.1 dB max.
0 0.1 dB max.
(non-inverting)
0 0.05 dB typ.
0 0.05 dB typ.
0 0.05 dB typ.
0 0.05 dB typ.
Stopband
Attenuation Rate
24 dB/octave
24 dB/octave
24 dB/octave
24 dB/octave
Cutoff Frequency
f
c
1% max.
f
c
1% max.
f
c
1% max.
f
c
1% max.
Stability
0.01% /C
0.01% /C
0.01% /C
0.01% /C
Amplitude
-3dB
-3dB
-3dB
-3dB
Phase
-180
-121
-231
-245
Filter Attenuation
0.67 dB 0.80 f
c
1.86 dB 0.80 f
c
-0.20 dB 0.80 f
c
-0.43 dB 0.80 f
c
(theoretical)
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
30.0 dB 2.37 f
c
30.0 dB 3.50 f
c
30.0 dB 1.89 f
c
30.0 dB 1.80 f
c
40.0 dB 3.16 f
c
40.0 dB 4.72 f
c
40.0 dB 2.46 f
c
40.0 dB 2.33 f
c
Phase Match
1
0 - 0.8 f
c
2 max.
0 - f
c
2 max.
0 - 0.8 f
c
2 max.
0 - 0.8 f
c
2 max.
1 typ.
1 typ.
1 typ.
1 typ.
0.8 fc - 1.0 f
c
3 max.
0.8 f
c
- 1.0 f
c
3 max.
0.8 f
c
- 1.0 f
c
3 max.
1.5 typ.
1.5 typ.
1.5 typ.
Amplitude Accuracy
0 - 0.8 f
c
0.2 dB max.
0 - f
c
0.2 dB max.
0 - 0.8 f
c
0.2 dB max.
0 - 0.8 f
c
0.2 dB max.
(theoretical)
0.1 dB typ.
0.1 dB typ.
0.1 dB typ.
0.1 dB typ.
0.8 fc - 1.0 f
c
0.3 dB max.
0.8 f
c
- 1.0 f
c
0.3 dB max.
0.8 - 1.0 f
c
0.3 dB max.
0.15 dB typ.
0.15 dB typ.
0.15 dB typ.
Total Harmonic
Distortion @ 1 kHz
D64
<-100 dB
<-100 dB
<-88 dB
<-88 dB
DP64
<-80 dB
<-80 dB
<-80 dB
<-80 dB
Wide Band Noise
200
Vrms typ.
200
Vrms typ.
200
Vrms typ.
200
Vrms typ.
(5 Hz - 2 MHz)
Narrow Band Noise
50
Vrms typ.
50
Vrms typ.
50
Vrms typ.
50
Vrms typ.
(20 Hz - 100 kHz)
Filter Mounting
Assembly
FMA-01S
FMA-01S
FMA-01S
FMA-01S
Fixed Frequency
D64 & DP64 Series
4-Pole
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
3
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
D64H4B
64H4Y2
D64H4Y5
Product Specifications
Transfer Function
4-Pole, Butterworth
4-Pole, Chebychev,
4-Pole, Chebychev,
0.2 dB Ripple
0.5 dB Ripple
Size
1.8" x 0.8" x 0.3"
1.8" x 0.8" x 0.3"
1.8" x 0.8" x 0.3"
Range f
c
D64
1 Hz to 100 kHz
1 Hz to 100 kHz
1 Hz to 100 kHz
DP64
Not Available
Not Available
Not Available
Theoretical Transfer
Appendix A
Appendix A
Appendix A
Characteristics
Page 27
Page 31
Page 33
Passband Ripple
0.0 dB
0.20 dB
0.50 dB
(theoretical)
Voltage Gain
0 0.2 dB to 100 kHz
0 0.2 dB to 100 kHz
0 0.2 dB to 100 kHz
(non-inverting)
0 0.5 dB to 120 kHz
0 0.5 dB to 120 kHz
0 0.5 dB to 120 kHz
Power Bandwidth
120 kHz
120 kHz
120 kHz
Small Signal Bandwidth
(-6dB) 1 MHz
(-6dB) 1 MHz
(-6dB) 1 MHz
Stopband
Attenuation Rate
24 dB/octave
24 dB/octave
24 dB/octave
Cutoff Frequency
f
c
1% max.
f
c
1% max.
f
c
1% max.
Stability
0.01% /C
0.01% /C
0.01% /C
Amplitude
-3dB
-3dB
-3dB
Phase
-180
-231
-245
Filter Attenuation
40 dB 0.31 f
c
40 dB 0.41 f
c
40 dB 0.43 f
c
(theoretical)
30 dB 0.42 f
c
30 dB 0.53 f
c
30 dB 0.56 f
c
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
0.02 dB 2.00 f
c
-0.07 dB 2.00 f
c
-0.25 dB 2.00 f
c
Phase Match
1
f
c
- 100 kHz
3 max.
f
c
- 100 kHz
3 max.
f
c
- 100 kHz
3 max.
1.5 typ.
1.5 typ.
1.5 typ.
Amplitude Accuracy
1.0 - 1.25 f
c
0.30 dB max. 1.0 - 1.25 f
c
0.30 dB max. 1.0 - 1.25 f
c
0.30 dB max.
(theoretical)
0.15 dB typ.
0.15 dB typ.
0.15 dB typ.
1.25 fc - 100 kHz 0.20 dB max. 1.25 fc - 100 kHz 0.20 dB max. 1.25 fc - 100 kHz 0.20 dB max.
0.10 dB typ.
0.10 dB typ.
0.10 dB typ.
Total Harmonic
Distortion @ 1 kHz
D64
<-88 dB
<-88dB
<-88 dB
Wide Band Noise
400
Vrms typ.
400
Vrms typ.
400
Vrms typ.
(5 Hz - 2 MHz)
Narrow Band Noise
100
Vrms typ.
100
Vrms typ.
100
Vrms typ.
(20 Hz - 100 kHz)
Filter Mounting
Assembly
FMA-01S
FMA-01S
FMA-01S
Specification
(25C and Vs 15 Vdc)
D64 & DP64 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-00D64-01
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
min.
Voltage Range
10 Vpeak
Max. Safe Voltage
Vs
Analog Output Characteristics
Impedance(Closed Loop)
1
typ.
10
max.
Linear Operating Range
10 V
Maximum Current
2
2 mA
Offset Voltage
3
0
2 mV typ.
10 mV max.
Offset Temp. Coeff.
50
V / C
Power Supply (V)
Rated Voltage
15 Vdc
Operating Range
5 to 18 Vdc
Maximum Safe Voltage
18 Vdc
Quiescent Current D64
12.5 mA typ.
20 mA max.
DP64
3.5 mA typ.
5 mA max.
Temperature
Operating
-
0 to + 70 C
Storage
- 25 to + 85 C
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.
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
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.
D64L4B-849 Hz
- 3 dB Corner Frequency
5
e.g., 849 Hz
2.50 kHz
33.3 kHz
Transfer Function
B - Butterworth
L - Bessel
Y2 - 0.2 Ripple Chebychev
Y5 - 0.5 Ripple Chebychev
Power Level
D Standard Power
DP Low Power
DC Offset Adjustment
Vs
- Vs
20 k
(Cermet)
Do not connect
if trim is not
required.
OS
4
Filter Mounting Assembly-See FMA-01A
Low-Pass
4-Pole
Appendix A
Bessel
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
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
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
0.00
-12.1
-24.2
-36.3
-48.4
-60.6
-48.1
-53.4
-58.0
-62.0
-65.7
-25.1
-27.6
-30.0
-34.4
-41.9
-12.2
-13.4
-16.5
-19.5
-22.4
-6.37
-7.42
-8.54
-9.71
-10.9
-2.69
-3.01
-3.71
-4.51
-5.39
-1.02
-1.41
-1.86
-2.11
-2.40
0.00
-0.028
-0.111
-0.251
-0.448
-0.705
-315
-321
-326
-330
-333
-267
-275
-281
-291
-305
-212
-219
-235
-248
-259
-166
-177
-187
-195
-204
-115
-121
-133
-144
-156
-72.7
-84.8
-96.8
-103
-109
.021
.016
.012
.009
.008
.089
.076
.065
.049
.031
.211
.194
.158
.129
.107
.295
.280
.263
.246
.228
.332
.330
.325
.318
.308
.336
.336
.335
.334
.333
.336
.336
.336
.336
.336
.336
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