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Электронный компонент: 428L4EX

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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
10 Hz - 102.4 kHz
4-Bit Programmable
428 Series
32-Pin DIP
8-Pole Filters
Description
The 428 Series are 8-pole digitally programmable
low-pass and high-pass active filters. These new
filters take advantage of the company's proprietary
designs using surface-mount technology to provide
a low profile, compact package in minimal board
space. 428 filters are factory tuned to one of ten
preset 4-bit binary ranges from 10 Hz to 102.4 kHz.
Contact the factory for custom discrete tuning
ranges, maximum span 1000:1.
All 428 Series models are easy to use fully finished
filters which require no external components or
adjustment. They feature low harmonic distortion,
near theoretical phase and amplitude characteristics
and operate over a dynamic input voltage range
from non-critical 12V 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 min. (32-pin DIP
footprint) minimizes board space requirements.
Digitally programmable corner frequency allows
selecting cut-off frequencies specific to each
application.
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
Acoustic and vibration analysis and control
Real and compressed time data analysis
Noise elimination
Signal reconstruction
Programmable Specifications:
. . . . . . . . . . . . .
Page
Digital Tuning & Control . . . . . . . . . . . . . . . . . . . . . . . 2
Available Low-Pass Models:
. . . . . . . . . . . . . . . . . . .
428L4B
8-pole Butterworth . . . . . . . . . . . . . . . . . . 3
428L4E
8-pole, 6 zero elliptic, 1.77 (-80dB) . . . . . . 3
428L4EX 8-pole, 6 zero elliptic, 1.56 (-80dB) . . . . . . 3
428L4EY 8-pole, 6 zero elliptic, 2.00 (-100dB) . . . . . 3
428L4L
8-pole Bessel . . . . . . . . . . . . . . . . . . . . . . 4
428L4D60 8-pole constant delay (-60dB) . . . . . . . . . . 4
428L4D80 8-pole constant delay (-80dB) . . . . . . . . . . 4
428L4D10 8-pole constant delay (-100dB) . . . . . . . . . 4
Available High-Pass Models:
. . . . . . . . . . . . . . . . . .
428H4B
8-pole Butterworth . . . . . . . . . . . . . . . . . . 5
428H4E
8-pole, 6 zero elliptic, 1.77 (-80dB) . . . . . . 5
428H4EX 8-pole, 6 zero elliptic, 1.56 (-80dB) . . . . . . 5
428H4EY 8-pole, 6 zero elliptic, 2.00 (-100dB) . . . . . 5
General Specifications:
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin-out/package data. . . . . . . . . . . . . . . . . . . . . . . . . 6
U.S. Selling Price (1-9)
$320.00 ea.
Orders for Export
U.S. Selling Price + 20%
Minimum Order Value $150.00
F.O.B. Haverhill, MA
Lead-Time: 2-4 weeks A.R.O.
Accept Visa, Mcard, Amex
4-Bit Programmable Filters
428 Series
Digital Tuning &
Control Characteristics
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
Digital Tuning Characteristics
The digital tuning interface circuits are a parallel set of CMOS
switches which accept CMOS compatible inputs for the four
tuning bits (D
0
- D
3
).
Binary Tuning Range
Pin-Out Key
IN
Analog Input Signal
D
3
Tuning Bit 3 (MSB)
OUT Analog Output Signal
D
2
Tuning Bit 2
GND Power and Signal Return D
1
Tuning Bit 1
+Vs
Supply Voltage, Positive
D
0
Tuning Bit 0 (LSB)
-Vs
Supply Voltage, Negative +5V Logic Power
Os
Offset Adjustment
Data Input Specifications
Input Data Levels
(+5Vdc CMOS Logic)
Input Voltage (
Vs=15 Vdc
)
Low Level In
0 Vdc min.
0.5 Vdc max.
High Level In
3.5 Vdc min.
5.0 Vdc max.
Input Current
High Level In
-0.4
A typ.
-2.0
A max.
Low Level In
+0.4
A typ.
+2.0
A max.
Input Capacitance
20 pF typ.
30 pF max.
Input Data Format
Frequency Select Bits
Positive Logic
Logic "1" = (+5Vdc)
Logic "0" = Gnd
Bit Weight
(Binary-Coded)
D
0
LSB (least significant bit)
D
3
MSB (most significant bit)
Frequency Range16:1 Binary Weighted
MSB
---
---
LSB
Bit
Weight
2
3
2
2
2
1
2
0
fc - corner
D
3
D
2
D
1
D
0
frequency
0
0
0
0
f
max
/16
0
0
0
1
f
max
/8
0
0
1
1
f
max
/4
0
1
1
1
f
max
/2
1
1
1
1
f
max
Binary Tuning Equation:
fc = (f
max
/16) [1+ D
3
x 2
3
+ D
2
x 2
2
+ D
1
x 2
1
+ D
0
x 2
0
]
where D
1
- D
3
= "0" or "1", and
f
max
= Maximum tuning frequency
fc = Corner frequency;
Minimum tunable frequency = f
max
/16 (D
0
thru D
3
= 0);
Minimum frequency step (Resolution) = f
max
/16
Discrete Frequencies
F
D
0
D
1
D
2
D
3
F
B
0
0
0
0
F
1
1
0
0
0
F
2
1
1
0
0
F
3
1
1
1
0
F
4
1
1
1
1
Discrete Tuning Equation:
fc = F
B
+ D
0
[
f
0
] + D
1
[
f
1
] + D
2
[
f
2
] + D
3
[
f
3
]
f
0
,
f
1
,
f
2
,
f
3
are the incremental frequency shifts for the data
bits D
0
, D
1
,
D
2
and D
3
. They are selected to realize the five
customer specified programming frequencies F
B
F
4
. Other
programming codes produce valid fc's between F
B
and F
4
.
Bottom View
0.70
0.80
0.00
0.10
1.00
1.50
1.30
1.10
0.50
1.80
1.60
0.30
0.00
0.80
0.90
Gnd Os
-Vs +Vs
D0
D2 D3
D1
+5V
Out
In
4
2
428 Series
8-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
4-Bit Programmable
1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
3
Model
428L4B
428L4E
428L4EX
428L4EY
Product Specifications
Transfer Function
8-Pole
8-Pole, 6 zero
8-Pole, 6 zero
8-Pole, 6 zero
Butterworth Elliptic
Elliptic
Elliptic
Size
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
Range fc, fr
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
Theoretical Transfer
Appendix A
Appendix A
Appendix A
Appendix A
Characteristics
Page 9
Page 24
Page 23
Page 25
Passband Ripple
0.0 dB
0.035 dB
-0.05 dB
-0.05 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
48 dB/octave
80 dB min.
80 dB min.
100 dB min.
Cutoff Frequency
f
c
2% max.
f
r
2% max.
f
r
2% max.
f
r
2% max.
Stability
0.01% /c
0.01% /c
0.01% /c
0.01% /c
Amplitude
-3 dB
-0.035 dB
-0.05 dB
-0.05 dB
Phase
-360
-323.5
-414
-419
Filter Attenuation
0.12 dB 0.80 f
c
0.035 dB 1.00 f
r
0.05 dB 1.00 f
r
0.05 dB 1.00 f
r
(theoretical)
3.01 dB 1.00 f
c
3.01 dB 1.13 f
r
3.01 dB 1.05 f
r
3.01 dB 1.06 f
r
60.0 dB 2.37 f
c
60.0 dB 1.67 f
r
60.0 dB 1.45 f
r
80.0 dB 1.83 f
r
80.0 dB 3.16 f
c
80.0 dB 1.77 f
r
80.0 dB 1.56 f
r
100.0 dB 2.00 f
r
Phase Match
1
0 - 0.8 f
c
2 max.
0 - 0.8 f
r
2 max.
0 - 0.8 f
r
3 max.
0 - 0.8 f
r
3 max.
1 typ.
1 typ.
1.5 typ.
1.5 typ.
0.8 fc - 1.0 f
c
3 max.
0.8 f
r
- 1.0 f
r
4 max.
0.8 f
r
- 1.0 f
r
4 max.
0.8 f
r
- 1.0 f
r
4 max.
1.5 typ.
2 typ.
2 typ.
2 typ.
Amplitude Accuracy
0 - 0.8 f
c
0.2 dB max.
0 - 0.8 f
r
.2 dB max.
0 - 0.8 f
r
0.2 dB max. 0 - 0.8 f
r
0.2 dB max.
(theoretical)
0.1 dB typ.
.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
r
- 1.0 f
r
.3 dB max.
0.8 f
r
- 1.0 f
r
0.5 dB max. 0.8 f
r
- 1.0 f
r
0.5 dB max.
0.15 dB typ.
.15 dB typ.
0.25 dB typ.
0.25 dB typ.
Total Harmonic
< - 100 dB typ.
< - 88 dB typ.
< - 88 dB typ.
< - 88 dB typ.
Distortion @ 1 kHz
Wide Band Noise
200
Vrms typ.
200
Vrms typ.
250
Vrms typ.
250
Vrms typ.
(5 Hz - 2 MHz)
Narrow Band Noise
50
Vrms typ.
50
Vrms typ.
75
Vrms typ.
75
Vrms typ.
(5 Hz - 100 kHz)
Filter Mounting
Assembly
FMA-02A FMA-02A FMA-02A FMA-02A
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
4-Bit Programmable
428 Series
8-Pole
Low-Pass Filters
Model
428L4L
428L4D60
428L4D80
428L4D10
Product Specifications
Transfer Function
8-Pole
8-Pole, 6 zero
8-Pole, 6 zero
8-Pole, 6 zero
Bessel
Constant Delay
Constant Delay
Constant Delay
Size
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
Range f
c
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
Theoretical Transfer
Appendix A
Appendix A
Appendix A
Appendix A
Characteristics
Page 4
Page 20
Page 21
Page 22
Passband Ripple
0.0 dB
0.15 dB
0.15 dB
0.15 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
48 dB/octave
60 dB min.
80 dB min.
100 dB min.
Cutoff Frequency
f
c
2% max.
f
c
2% max.
f
c
2% max.
f
c
2% max.
Stability
0.01% /c
0.01% /c
0.01% /c
0.01% /c
Amplitude
-3 dB
-3 dB
-3 dB
-3 dB
Phase
-182
-306
-306
-311
Filter Attenuation
1.91 dB 0.80 f
c
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
3.01 dB 1.00 f
c
(theoretical)
3.01 dB 1.00 f
c
40.0 dB 2.28 f
c
60.0 dB 3.08 f
c
80.0 dB 4.45 f
c
60.0 dB 4.52 f
c
60.0 dB 2.64 f
c
80.0 dB 3.57 f
c
100.0 dB 5.20 f
c
80.0 dB 6.07 f
c
Phase Match
1
0 - f
c
2 max.
0 - f
c
2 max.
0 - fc
2 max.
0 - f
c
2 max.
1 typ.
1 typ.
1 typ.
1 typ.
Amplitude Accuracy
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. 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 f
c
- 1.0 f
c
0.3 dB max. 0.8 f
c
-1.0 f
c
0.3 dB max. 0.8 f
c
- 1.0 f
c
0.3 dB max.
0.15 dB typ.
0.15 dB typ.
0.15 dB typ.
Total Harmonic
< - 100 dB typ.
< - 100 dB typ.
< - 100 dB typ.
< - 100 dB typ.
Distortion @ 1 kHz
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.
(5 Hz - 100 kHz)
Filter Mounting
Assembly
FMA-02A FMA-02A FMA-02A FMA-02A
1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
4
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
4-Bit Programmable
428 Series
8-Pole
High-Pass Filters
Model
428H4B
428H4E
428H4EX
428H4EY
Product Specifications
Transfer Function
8-Pole
8-Pole, 6 zero
8-Pole, 6 zero
8-Pole, 6 zero
Butterworth
Elliptic
Elliptic Elliptic
Size
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
0.8" x 1.8" x 0.5"
Range fc, fr
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
10.0 Hz to 102.4 kHz
Theoretical Transfer
Appendix A
Appendix A
Appendix A
Appendix A
Characteristics
Page 29
Page 37
Page 36
Page 38
Passband Ripple
0.0 dB
0.035 dB
-0.05 dB
-0.05 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
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
0 0.5 dB to 120 kHz
Power Bandwidth
120 kHz
120 kHz
120 kHz
120 kHz
Small Signal
(-6 dB) 1 MHz
(-6 dB) 1 MHz
(-6 dB) 1 MHz
(-6 dB) 1 MHz
Bandwidth
Stopband
Attenuation Rate
48 dB/octave
80 dB
80 dB
100 dB
Cutoff Frequency
f
c
2% max.
f
r
2% max.
f
r
2% max.
f
r
2% max.
Stability
0.01% /c
0.01% /c
0.01% /c
0.01% /c
Amplitude
-3 dB
-0.035 dB
-0.05 dB
-0.05 dB
Phase
-360
-323.5
-414
-419
Filter Attenuation
80 dB 0.31 f
c
80 dB 0.56 f
r
80 dB 0.64 f
r
100 dB 0.50 f
r
(theoretical)
60.0 dB 0.42 f
c
60.0 dB 0.60 f
r
60.0 dB 0.69 f
r
80.0 dB 0.55 f
r
3.01 dB 1.00 f
c
3.01 dB 0.88 f
r
3.01 dB 0.95 f
r
3.01 dB 0.94 f
r
0.00 dB 2.00 f
c
0.03 dB 1.00 f
r
0.03 dB 1.00 f
r
0.03 dB 1.00 f
r
0.00 dB 2.00 f
r
0.00 dB 2.00 f
r
0.00 dB 2.00 f
r
Phase Match
1
f
c
- 100 kHz
3 max.
f
r
- 1.25 f
r
4 max.
f
r
- 1.25 f
r
4 max.
f
r
- 1.25 f
r
4 max.
1.5 typ.
2 typ.
2 typ.
2 typ.
1.25 f
r
-100 kHz 2 max.
1.25 f
r
-100 kHz 2 max.
1.25 f
r
-100 kHz 3 max.
1 typ.
1 typ.
1.5 typ.
Amplitude Accuracy
f
c
-1.25 f
c
0.3 dB max. f
r
-1.25 f
r
0.3 dB max. f
r
-1.25 f
r
0.5 dB max. f
r
-1.25 f
r
0.5 dB max.
(theoretical)
0.15 dB typ.
0.15 dB typ.
0.25 dB typ.
0.25 dB typ.
1.25 f
c
-100kHz 0.2 dB max.
1.25 f
r
-100 kHz 0.2 dB max.
1.25 f
r
-100 kHz 0.2 dB max.
1.25 f
r
-100 kHz 0.2 dB max.
0.1 dB typ.
0.1 dB typ.
0.1 dB typ.
0.1 dB typ.
Total Harmonic
< - 100 dB typ.
< - 88 dB typ.
< - 88 dB typ.
< - 88 dB typ.
Distortion @ 1 kHz
Wide Band Noise
400
Vrms typ.
400
Vrms typ.
500
Vrms typ.
500
Vrms typ.
(5 Hz - 2 MHz)
Narrow Band Noise
100
Vrms typ.
100
Vrms typ.
150
Vrms typ.
150
Vrms typ.
(5 Hz - 100 kHz)
Filter Mounting
Assembly
FMA-02A FMA-02A FMA-02A FMA-02A
1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
5