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
Applications
Power line interference rejection
Transducer output filtering
Production test instrumentation
Medical electronics equipment and research
Comb filtering and equalization
Noise and harmonic analysis
RMS measurements
Frequency spectrum analysis
Features/Benefits:
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 center frequencies to meet a wide
range of applications.
Description:
The D64BP Series of small 2-pole-pair fixed-
frequency, precision band-pass active filter that
provides high performance in a compact 32-pin DIP
package, with a broad range of fixed center
frequencies (fo) from 1 Hz to 100 kHz. Each filter
type features a near theoretical amplitude/phase
response along with low output voltage noise
enabling these filters to achieve a 10,000:1 or better
dynamic signal range.
Pretuned to within 2% of the fixed, user specified
center frequency, band-pass D64BP filters pass all
frequencies lying between the upper and lower -3dB
points of the amplitude response curve. Available
Q's for D64BP models are 1, 2, 5, or 10.
Band Pass
D64BP Series
Fixed Frequency
2-Pole Pair Filters
1
Available Band-Pass Models:
. . . . . . . . . . . . .
Page
D64BP2
2 pole pair . . . . . . . . . . . . . . . . . . .2
General Specifications:
Ordering Information . . . . . . . . . . . . . . . . . . . . . . .3
Pin-Out/Package Data . . . . . . . . . . . . . . . . . . . . . .3
Band-Pass
D64BP
Fixed Frequency
2-Pole Pair 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
Model
D64BP2
Product Specifications
Band-Pass
Size
1.8" x 0.8" x 0.3"
Range f
o
1 Hz to 100 kHz
Available "Q's"
1
1, 2, 5, 10
"Q" Accuracy
10 %
Theoretical Transfer
Appendix A
Characteristics
Pages 39 & 40
Pass-Band Gain
0 0.2 dB typ
(non-inverting)
0 0.4 dB max.
Attenuation Rate
12 dB/octave
Center Frequency
f
o
2% max.
Stability
0.01%/C
Filter Mounting
FMA-01A
Assembly
1. Q Quality Factor for band-pass filters. Q = f
O
/(f
H
-f
L
)
f
O
=
f
H
f
L
D64BP 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-D64BP-02
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
Specification
(25C and Vs 15Vdc)
DC Offset Adjustment
Vs
- Vs
20 k
(Cermet)
Do not connect
if trim is not
required.
OS
Analog Input Characteristics
1
Impedance
10 k
min.
Voltage Range
10 Vpeak
Max. Safe Voltage
Vs
Analog Output Characteristics
Impedance (Closed Loop)
1
1
typ.
10
max.
Linear Operating Range
10V
Maximum Current
2
2 mA
Offset Voltage
3
2
2 mV typ.
20 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
12.5 mA typ.
20 mA max.
Temperature
Operating
-2
0 to +70C
Storage
-25 to +85C
D64BP2/10-849 Hz
e.g.,
849 Hz
2.50 kHz
33.3 kHz
(fo) Center Frequency
5
Ordering Information
"Q"
1, 2, 5, 10
Pin-Out & Package Data
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 Center Frequency:
Center frequencies are specified by attaching a three digit frequency
designator to the basic model number. Center frequencies can range from
1 Hz to 100 kHz.
Q = 1
Q = 2
Q = 5
Q = 10
f
L
< f
O
< f
H
f
L
< f
O
< f
H
f
L
< f
O
< f
H
f
L
< f
O
< f
H
Amp
(dB)
f / fO
f / fO
f / fO
f / fO
f / fO
f / fO
f / fO
f / fO
-0.10 0.824 1.214
0.907 1.102
0.962 1.040
0.981 1.020
-0.25 0.783 1.277
0.884 1.131
0.952 1.051
0.976 1.025
-0.50 0.747 1.338
0.863 1.159
0.943 1.061
0.971 1.030
-1.00 0.705 1.418
0.837 1.194
0.931 1.074
0.965 1.036
-1.50 0.677 1.478
0.820 1.220
0.923 1.083
0.961 1.041
-2.00 0.654 1.529
0.805 1.242
0.916 1.091
0.957 1.045
-2.50 0.635 1.574
0.792 1.262
0.910 1.098
0.954 1.048
-3.00 0.618 1.617
0.781 1.280
0.905 1.105
0.951 1.051
-5.00 0.563 1.776
0.742 1.348
0.886 1.129
0.941 1.062
-10.00 0.457 2.189
0.657 1.523
0.842 1.188
0.917 1.090
-15.00 0.368 2.720
0.572 1.748
0.792 1.263
0.889 1.125
-20.00 0.290 3.445
0.485 2.062
0.733 1.364
0.855 1.170
-25.00 0.225 4.439
0.399 2.506
0.664 1.507
0.811 1.233
-30.00 0.173 5.795
0.319 3.130
0.585 1.709
0.758 1.320
-35.00 0.131 7.630
0.250 3.999
0.500 2.000
0.693 1.443
-40.00 0.099 10.09
0.193 5.192
0.414 2.414
0.618 1.618
-45.00 0.075 13.41
0.147 6.814
0.333 3.001
0.535 1.869
-50.00 0.056 17.83
0.111 9.002
0.262 3.819
0.449 2.228
-55.00 0.042 23.75
0.084 11.94
0.202 4.945
0.365 2.737
-60.00 0.032 31.65
0.063 15.87
0.154 6.479
0.290 3.453
-65.00 0.024 42.19
0.047 21.13
0.117 8.552
0.225 4.443
-70.00 0.018 56.25
0.036 28.15
0.088 11.33
0.172 5.798
-75.00 0.013 75.00
0.027 37.52
0.066 15.06
0.131 7.632
-80.00 0.010 100.0
0.020 50.01
0.050 20.05
0.099 10.10
Band-Pass
2-Pole Pair
Appendix A
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
Amplitude Response Curves
0.1
1.0
10.0
2
3 4 5 6 7 8
2
3 4 5 6 7 8
Normalized Frequency (f/fo)
-80
-70
-60
-50
-40
-30
-20
-10
0
Amp (dB)
Normalized Frequency (f/fo)
1.0
0.9
0.8
0.7
0.6
-5
-4
-3
-2
-1
0
Amp (dB)
1.1 1.2
1.4
1.3
1.5 1.6
Q1
Q2
Q5
Q10
Q1
Q2
Q5
Q10
39
Band-Pass
2-Pole Pair
Appendix A
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
Q = 1
Q = 2
Q = 5
Q = 10
(+)
(-)
(+)
(-)
(+)
(-)
(+)
(-)
Phase
Mag
(
deg)
f / fO
f / fO
f / fO
f / fO
f / fO
f / fO
f / fO
f / fO
1.0
0.994 1.006
0.997 1.003
0.999 1.001 0.999 1.001
2.5
0.985 1.016
0.992 1.008
0.997 1.003 0.998 1.002
5.0
0.970 1.031
0.985 1.016
0.994 1.006 0.997 1.003
10.0
0.940 1.063
0.970 1.031
0.988 1.012 0.994 1.006
15.0
0.913 1.096
0.955 1.047
0.982 1.018 0.991 1.009
20.0
0.886 1.128
0.941 1.062
0.976 1.025 0.988 1.012
25.0
0.861 1.161
0.928 1.078
0.970 1.030 0.985 1.015
30.0
0.838 1.194
0.915 1.093
0.965 1.036 0.982 1.018
35.0
0.815 1.227
0.902 1.108
0.960 1.042 0.980 1.021
40.0
0.794 1.259
0.891 1.123
0.955 1.048 0.977 1.024
45.0
0.774 1.292
0.879 1.138
0.950 1.053 0.974 1.026
50.0
0.755 1.324
0.868 1.152
0.945 1.059 0.972 1.029
60.0
0.719 1.391
0.846 1.182
0.935 1.069 0.967 1.034
70.0
0.685 1.460
0.825 1.212
0.925 1.081 0.962 1.040
80.0
0.652 1.535
0.803 1.245
0.916 1.092 0.957 1.045
90.0
0.618 1.618
0.781 1.281
0.905 1.105 0.951 1.051
105.0
0.564 1.772
0.743 1.346
0.887 1.128 0.941 1.062
120.0
0.502 1.991
0.695 1.439
0.862 1.160 0.928 1.077
135.0
0.424 2.356
0.628 1.594
0.825 1.212 0.908 1.101
150.0
0.320 3.126
0.520 1.923
0.758 1.319 0.869 1.150
165.0
0.177 5.639
0.327 3.058
0.593 1.686 0.764 1.310
180.0
0
inf
0
inf
0
inf
0
inf
Phase Response Curves
Normalized Frequency (f/fo)
1.0
0.9
0.8
0.7
0.6
Phase (deg)
1.1 1.2
1.4
1.3
1.5 1.6
0.1
1.0
10.0
2
3 4 5 6 7 8
2
3 4 5 6 7 8
Normalized Frequency (f/fo)
-180
-90
0
90
180
Phase (deg)
Q1
Q2
Q5
Q10
Q1
Q2
Q5
Q10
Normalized Theoretical Phase Data
-180
-90
0
90
180
40
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