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424 Series
10 Hz to 102.4 kHz 4-Bit Programmable
Description The 424 Series are 4-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. 424 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 424 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: . . . . . . . . . . . . . . . . . . . 424L4B 4-pole Butterworth . . . . . . . . . . . . . . . . . . 3 424L4L 4-pole Bessel . . . . . . . . . . . . . . . . . . . . . . 3 424L4Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . . . . 3 424L4Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . . . . 3 Available High-Pass Models: . . . . . . . . . . . . . . . . . . 424H4B 4-pole Butterworth . . . . . . . . . . . . . . . . . . 4 424H4Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . . . . 4 424H4Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . . . . 4 General Specifications: Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin-out/package data. . . . . . . . . . . . . . . . . . . . . . . . . 5
32-Pin DIP 4-Pole Filters
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
424 Series
4-Bit Programmable Filters
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).
Digital Tuning & Control Characteristics
Pin-Out Key IN Analog Input Signal D3 D2 D0 Tuning Bit 3 (MSB) Tuning Bit 2 Tuning Bit 1 Tuning Bit 0 (LSB) OUT Analog Output Signal +Vs -Vs Os Supply Voltage, Positive Offset Adjustment
0.80" 0.70"
Binary Tuning Range
MSB 23 D3 0 0 0 0 1 --22 D2 0 0 0 1 1 --21 D1 0 0 1 1 1 LSB 20 D0 0 1 1 1 1 Bit Weight fc - corner frequency fmax /16 fmax /8 fmax /4 fmax /2 f max
GND Power and Signal Return D1
Supply Voltage, Negative +5V Logic Power
OUT
Binary T uning 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 fmax = 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
Bottom View
0.10" 0.00" 0.00" D0 D1 +5V D2 D3
GND Os -Vs +Vs
IN
0.30"
0.50"
0.80"
0.90"
1.00" 1.10"
1.30"
1.50" 1.60"
Discrete Frequencies
F FB F1 F2 F3 F4 D0 0 1 1 1 1 D1 0 0 1 1 1 D2 0 0 0 1 1 D3 0 0 0 0 1
Data Input Specifications Input Data Levels Input Voltage (Vs=15 Vdc) Low Level In High Level In Input Current High Level In Low Level In Input Capacitance Input Data Format Positive Logic Bit Weight D0 D3 (+5Vdc CMOS Logic) 0 Vdc min. 3.5 Vdc min. -0.4mAtyp. +0.4mAtyp. 20 pF typ. 0.5 Vdc max. 5.0 Vdc max. -2.0mAmax. +2.0mAmax. 30 pF max.
Discrete Tuning Equation: fc = FB + D0[f0] + D1[f1] + D2[f2] + D3[f3] f0, f1, f2, f3 are the incremental frequency shifts for the data bits D0, D1, D2 and D3. They are selected to realize the five customer specified programming frequencies FB -> F4. Other programming codes produce valid fc's between FB and F4.
Frequency Select Bits Logic "1" = (+5Vdc) Logic "0" = Gnd (Binary-Coded) LSB (least significant bit) MSB (most significant bit)
Frequency Range16:1 Binary Weighted
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
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1.80"
424 Series
4-Bit Programmable
Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple
(theoretical)
4-Pole Low-Pass Filters
424L4L 424L4Y2 424L4Y5
424L4B
4-Pole, Butterworth 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 7 0.0 dB 0 0.1 dB max. 0 0.05 dB typ. 24 dB/octave fc 0.01% /C -3 dB -180 0.67 dB 3.01 dB 30.0 dB 40.0 dB 0 - 0.8 fc 2% max.
4-Pole, Bessel 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 2 0.0 dB 0 0.1 dB max. 0 0.05 dB typ. 24 dB/octave fc 0.01% /C -3 dB -121 1.86 dB 3.01 dB 30.0 dB 40.0 dB 0 - fc 2% max.
4-Pole, Chebychev, 0.2 dB Ripple 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 12 0.20 dB 0 0.1 dB max. 0 0.05 dB typ. 24 dB/octave fc 0.01% /C -3 dB -231 -0.20 dB 3.01 dB 30.0 dB 40.0 dB 0 - 0.8 fc 2% max.
4-Pole, Chebychev, 0.5 dB Ripple 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 15 0.50 dB 0 0.1 dB max. 0 0.05 dB typ. 24 dB min. fc 0.01% /C -3 dB -245 -0.43 dB 3.01 dB 30.0 dB 40.0 dB 0 - 0.8 fc 2% max.
DC Voltage Gain
(non-inverting)
Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
(theoretical)
0.80 fc 1.00 fc 2.37 fc 3.16 fc
0.80 fc 1.00 fc 3.50 fc 4.72 fc 2 max. 1 typ.
0.80 fc 1.00 fc 1.89 fc 2.46 fc
0.80 fc 1.00 fc 1.80 fc 2.33 fc
Phase Match1
2 max. 1 typ. 0.8 fc - 1.0 fc 3 max. 1.5 typ.
2 max. 1 typ. 0.8 fc - 1.0 fc 3 max. 1.5 typ.
2 max. 1 typ. 0.8 fc - 1.0 fc 3 max. 1.5 typ. 0.2 dB max. 0.1 dB typ. 0.3 dB max. 0.15 dB typ.
Amplitude Accuracy
(theoretical)
0.2 dB max. 0.1 dB typ. 0.8 fc - 1.0 fc 0.3 dB max. 0.15 dB typ. < - 100 dB typ. 200 mVrms typ. 50 mVrms typ.
0 - 0.8 fc
0 - fc
0.2 dB max. 0 - 0.8 fc 0.2 dB max. 0 - 0.8 fc 0.1 dB typ. 0.1 dB typ. 0.8 fc - 1.0 fc 0.3 dB max. 0.8 fc - 1.0 fc 0.15 dB typ. < - 88 dB typ. 200 mVrms typ. 50 mVrms typ. < - 88 dB typ.
Total Harmonic Distortion @ 1 kHz Wide Band Noise
(5 Hz - 2 MHz)
< - 100 dB typ. 200 mVrms typ. 50 mVrms typ.
200 mVrms typ. 50 mVrms typ.
Narrow Band Noise
(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.
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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
424 Series
4-Bit Programmable
Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple
(theoretical)
4-Pole High-Pass Filters
424H4Y2 424H4Y5
424H4B
4-Pole, Butterworth 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 27 0.0 dB 0 0.2 dB to 100 kHz 0 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz 24 dB/octave fc 0.01% /C -3 dB 180 40 dB 30 dB 3.01 dB 0.02 dB 2% max.
4-Pole, Chebychev, 0.2 dB Ripple 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 31 0.20 dB 0 0.2 dB to 100 kHz 0 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz 24 dB/octave fc 0.01% /C -3 dB 231 40.0 dB 30.0 dB 3.01 dB -0.07 dB fc - 100 kHz 2% max.
4-Pole, Chebychev, 0.5 dB Ripple 0.8" x 1.8" x 0.3" 10.0 Hz to 102.4 kHz Appendix A Page 33 0.50 dB 0 0.2 dB to 100 kHz 0 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz 24 dB/octave fc 0.01% /C -3 dB 245 40.0 dB 30.0 dB 3.01 dB -0.25 dB fc - 100 kHz 2% max.
Voltage Gain
(non-inverting)
Power Bandwidth Small Signal Bandwidth Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
(theoretical)
0.31 fc 0.42 fc 1.00 fc 2.00 fc
0.41 fc 0.53 fc 1.00 fc 2.00 fc 3 max. 1.5 typ.
0.43 fc 0.56 fc 1.00 fc 2.00 fc 3 max. 1.5 typ.
Phase Match1
fc - 100 kHz 3 max. 1.5 typ. 1.0 - 1.25 fc
Amplitude Accuracy
(theoretical)
0.3 dB max. 1.0 - 1.25 fc 0.15 dB typ. 1.25 fc-100 kHz 0.2 dB max. 1.25 fc-100 kHz 0.1 dB max. < - 100 dB typ. 400 mVrms typ. 100 mVrms typ. < - 88 dB typ.
0.3 dB max. 1.0 - 1.25 fc 0.3 dB max. 0.15 dB typ. 0.15 dB typ. 0.2 dB max. 1.25 fc-100 kHz 0.2 dB max. 0.1 dB typ. 0.1 dB typ. < - 88 dB typ. 400 mVrms typ. 100 mVrms typ.
Total Harmonic Distortion @ 1kHz Wide Band Noise
(5 Hz - 2 MHz)
400 mVrms typ. 100 mVrms typ.
Narrow Band Noise
(5 Hz - 100 kHz)
Filter Mounting Assembly
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.
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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
424 Series
(25C and Vs 15 Vdc)
Analog Input Characteristics1 Impedance Voltage Range Max. Safe Voltage Analog Output Characteristics Impedance (Closed Loop) Linear Operating Range Maximum Current2 Offset Voltage3 Offset Temp. Coeff. Power Supply (V) Rated Voltage Operating Range Maximum Safe Voltage Quiescent Current 4-Pole Temperature Operating Storage
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 without offset pin connected.
Specification
Pin-Out and Package Data Ordering Information
424 Package OUTLINE
0.80"(max)
10 k W min. 10 Vpeak
Vs
Side
0.025" (dia)
0.30"(max) 0.15" (min)
11 W typ. 10 W max.
10V 2 mA
1.80"(max)
22 mV typ. 20 mV max. 50 m V/C
Front
All dimensions are in inches All case dimensions 0.01" 0.80" 0.70"
0.10"(typ)
15 Vdc 12 to 18 Vdc 18 Vdc 13 mA typ. 20 mA max.
-20 to +70C -25 to +85C
OUT
Bottom View
0.10" 0.00" 0.00" D0 D1 +5V D2 D3
GND Os -Vs +Vs
IN
Filter Mounting Assembly - See FMA-02A
Filter Type
Ordering Information
424 Transfer Function B - Butterworth L - Bessel Y2 - 0.2 Ripple Chebychev Y5 - 0.5 Ripple Chebychev
L - Low Pass H - High Pass
Model Number
424 L4L-7
DC Offset Adjustment
Vs Do not connect if trim is not required. 20 k W (Cermet) OS
Binary Tuning Ranges
*Contact factory for custom step frequency. Maximum step 6.40 kHz.
Model Tuning *Minimum Number Range (Hz) Step (Hz) 1 10-160 10 2 25-400 25 3 50-800 50 4 100-1.60k 100 5 250-4.00k 250 6 500-8.00k 500 7 1.00k-16.0k 1.00k 8 2.50k-40.0k 2.50k 9 5.00k-80.0k 5.00k 10 6.40k-102.4k 6.40k
- Vs
Discrete Frequency's
Customer must specify f1 ,f2 ,f3, f4,f5. Maximum span f1 -> f5 1,000:1.
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-00424-02
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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
1.80"
0.30"
0.50"
0.80"
0.90"
1.00" 1.10"
1.30"
1.50" 1.60"
Low-Pass
4-Pole Appendix A 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 Bessel Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc)
3 4 5 6 78
Delay (Normalized) 1.0 Delay (sec)
0.5
0.0 0.1
0.15 2
1.0 1.5 Normalized Time (1/f sec)
3
4
5 6 7 89
Step Response 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 -0.2 0 Step Response (V/V)
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
1 2 3 4 Normalized Time (1/f sec)
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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
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Low-Pass
4-Pole Appendix A 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 Butterworth Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc)
3 4 5 6 78
Delay (Normalized) 2.0 Delay (sec)
1.0
0.0 0.1
0.15 2
1.0 1.5 Normalized Frequency(f/fc)
3
4
5 6 7 89
Step Response Step Response (V/V) 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 1 2 3 4 Normalized Time (1/f sec) 5
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
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
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Low-Pass
4-Pole, 0.2 dB Ripple Appendix A Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.00 0.000 0.00 .478 0.10 0.039 -17.3 .487 0.20 0.129 -35.2 .509 0.30 0.195 -54.0 .533 0.40 0.174 -73.4 .547 0.50 0.074 -93.2 .553 0.000 0.60 -113 .575 0.074 0.70 -135 .654 0.199 0.80 -162 .836 0.063 0.85 -178 .947 -0.443 0.90 -196 1.02 .989 0.95 -214 -1.47 .873 1.00 -231 -3.01 .583 1.10 -257 -6.89 .385 1.20 -274 -10.8 .271 1.30 -286 -14.5 1.40 -17.7 -294 .202 1.50 -20.7 -300 .158 1.60 -23.4 -306 .128 1.70 -25.8 -310 .107 1.80 -28.1 -313 .090 -30.2 1.90 -316 .078 -32.2 2.00 -319 .068 -36.7 -324 2.25 .051 -40.6 -328 2.50 .039 -44.1 -331 2.75 .032 3.00 -47.3 -334 .026 3.25 -50.2 -336 .022 3.50 -52.8 -338 .018 4.00 -57.6 -341 .014 5.00 -65.5 -345 .009 -71.9 6.00 -347 .006 -77.3 7.00 -349 .004 -82.0 8.00 -351 .003 -86.1 9.00 -352 .003 -89.8 10.0 -352 .002 Chebychev Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 2 3 4 5 6 7 810.0 Normalized Frequency(f/fc)
3 4 5 6 78
Delay (Normalized) 2.0 Delay (sec)
1.0
0.0 0.1
0.15 2
1.0 1.5 Normalized Time (1/f sec)
3
4
5 6 7 89
Step Response Step Response (V/V) 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 1 2 3 4 Normalized Time (1/f sec) 5
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
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
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Low-Pass
4-Pole, 0.5 dB Ripple Appendix A Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.00 0.00 0.00 .476 0.10 0.087 -17.3 .492 0.20 0.295 -35.7 .533 0.30 0.474 -55.7 .577 0.40 0.463 -76.9 .596 0.50 0.248 -98.2 .583 0.60 0.025 -119 .578 0.70 0.072 -141 .647 0.80 0.432 -168 .881 0.85 0.482 -185 1.06 0.90 0.062 -205 1.18 0.95 -1.12 -226 1.13 1.00 -3.01 -245 .946 1.10 -7.61 -272 .559 1.20 -12.0 -288 .345 1.30 -15.9 -298 .235 1.40 -19.3 -305 .173 1.50 -22.4 -311 .134 1.60 -25.1 -315 .108 1.70 -27.6 -318 .089 1.80 -29.9 -321 .075 -32.1 1.90 -324 .065 -34.1 2.00 -326 .057 -38.6 2.25 -301 .042 -42.6 2.50 -334 .033 -46.1 2.75 -336 .026 3.00 -49.3 -339 .021 3.25 -52.2 -340 .018 3.50 -54.9 -342 .015 4.00 -59.7 -344 .011 5.00 -67.6 -347 .007 6.00 -74.0 -350 .005 7.00 -79.4 -351 .004 8.00 -84.1 -352 .003 9.00 -88.2 -353 .002 10.0 -91.9 -354 .002 Chebychev Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 10.0 Normalized Frequency(f/fc)
3 4 5 6 78
2
3 4 5 6 78
Delay (Normalized) 2.0 Delay (sec)
1.0
0.0 0.1
0.15 2
1.0 1.5 Normalized Time (1/f sec)
3
4
5 6 7 89
Step Response Step Response (V/V) 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 1 2 3 4 Normalized Time (1/f sec) 5
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
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
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High-Pass
4-Pole Appendix A 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 Butterworth Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc)
3 4 5 6 78
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
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
27
High-Pass
4-Pole, 0.2 dB Ripple Appendix A Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.10 -89.8 352 .212 -65.1 0.20 345 .218 -51.1 0.30 337 .228 -40.6 0.40 328 .245 -32.2 0.50 319 .272 -25.0 0.60 308 .314 -18.6 0.70 296 .383 -12.7 0.80 280 .500 -7.34 0.90 259 .686 -3.01 1.00 231 .873 .633 1.20 172 .140 .275 1.50 128 .031 .197 1.70 111 .003 .138 2.00 93.2 .074 .088 2.50 73.4 .174 3.00 .200 60.4 .060 4.00 .170 44.5 .033 5.00 .129 35.2 .020 .098 6.00 29.2 .014 7.00 .076 24.9 .010 .060 8.00 21.7 .008 .048 9.00 19.3 .006 .040 10.0 17.3 .005 Chebychev Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 2 3 4 5 6 7 8 10.0 Normalized Frequency(f/fc)
3 4 5 6 78
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
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
31
High-Pass
4-Pole, 0.5 dB Ripple Appendix A Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.10 -91.9 354 .174 -67.6 0.20 347 .179 -53.1 0.30 341 .188 -42.6 0.40 334 .203 -34.1 0.50 326 .226 -26.8 0.60 317 .263 -20.2 0.70 307 .326 -14.0 0.80 293 .440 -8.13 0.90 274 .651 -3.01 1.00 245 .946 .693 1.20 179 .500 .271 1.50 133 .014 .199 1.70 117 .043 .146 2.00 98.2 .249 .095 2.50 76.9 .469 3.00 .498 62.7 .065 4.00 .401 45.5 .035 5.00 .296 35.7 .021 .221 6.00 29.4 .014 7.00 .169 25.0 .010 .133 8.00 21.8 .008 .107 9.00 19.3 .006 .088 10.0 17.3 .005 Chebychev Frequency Response 0 Amp (dB) -20 -40 -60 -80 -100 0.1
2
1.0 10.0 Normalized Frequency(f/fc)
3 4 5 6 78
2
3 4 5 6 78
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
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
33

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