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| D61 Series 0.02 Hz to 1.00 Hz Fixed Frequency Description The D61 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 D61 filters can serve in low-pass or highpass applications or be combined to create custom band-pass or band reject filters. These fully selfcontained units require no external components or adjustments. Each model comes factory tuned to a user-specified corner frequency between 0.02 Hz and 1.00 Hz and operate with low total harmonic distortion over a wide dynamic input voltage range from non-critical +/-5V to +/-18V power supplies. 32-Pin DIP 4 - Pole Filters Features/Benefits: * Low harmonic distortion and wide signal-to-noise ratio * Compact 1.8"L x 0.8"W x 0.5"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. Available Low-Pass Models: . . . . . . . . . . .Page D61L4B D61L4L 4-pole Butterworth . . . . . . . . . . . . . . . .2 4-pole Bessel . . . . . . . . . . . . . . . . . . . .2 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 High-Pass Models: . . . . . . . . . . . . . . . D61H4B 4-pole Butterworth . . . . . . . . . . . . . . . .2 General Specifications: Pin-out/package data & ordering information . . . .3 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 D61 Series Fixed Frequency Model Product Specifications Transfer Function Size Range fc D61 Theoretical Transfer Characteristics Passband Ripple (theoretical) 4-Pole Low-Pass Filters D61L4L Low-Pass 4-Pole, Bessel 1.8" x 0.8" x 0.5" 0.02 Hz to 1.00 Hz Appendix A Page 2 0.0 dB 0 0.1 dB max. 0 0.05 dB typ. Transfer Function Size Range fc D61 Theoretical Transfer Characteristics Passband Ripple (theoretical) D61L4B Low-Pass 4-Pole, Butterworth 1.8" x 0.8" x 0.5" 0.02 Hz to 1.00 Hz Appendix A Page 7 0.0 dB 0 0.1 dB max. 0 0.05 dB typ. Model D61H4B High-Pass 4-Pole, Butterworth 1.8" x 0.8" x 0.5" 0.02 Hz to 1.00 Hz Appendix A Page 27 0.0 dB 0 0.2 dB to 100 kHz 0 0.5 dB to 120 kHz 120 kHz (-6dB) 1 MHz 24 dB/octave fc 0.01% /C -3dB -180 40 dB 30 dB 3.01 dB 0.02 dB 0 - 100 kHz 2% max. DC Voltage Gain (non-inverting) Voltage Gain (non-inverting) Power Bandwidth Small Signal Bandwidth Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation (theoretical) 24 dB/octave fc 0.01% /C -3dB -180 0.67 dB 3.01 dB 30.0 dB 40.0 dB 0 - 0.8 fc 0.8 fc - 1.0 fc 2% max. 24 dB/octave fc 0.01% /C -3dB -121 1.86 dB 3.01 dB 30.0 dB 40.0 dB 0 - fc 2% max. Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation (theoretical) 0.80 fc 1.00 fc 2.37 fc 3.16 fc 2 max. 1 typ. 3 max. 1.5 typ. 0.80 fc 1.00 fc 3.50 fc 4.72 fc 2 max. 1 typ. 0.31 fc 0.42 fc 1.00 fc 2.00 fc 3 max. 1.5 typ. Phase Match1 Phase Match1 Amplitude Accuracy (theoretical) 0 - 0.8 fc 0.2 dB max. 0.1 dB typ. 0.8 fc - 1.0 fc 0.3 dB max. 0.15 dB typ. 0 - fc 0.2 dB max. 0.1 dB typ. Amplitude Accuracy (theoretical) 0.30 dB max. 0.15 dB typ. 1.25 fc -100 kHz 0.20 dB max. 0.10 dB typ. 400 mVrms typ. 100 mVrms typ. 1.0 - 1.25 fc Wide Band Noise (5 Hz - 2 MHz) 200 mVrms typ. 50 mVrms typ. 200 mVrms typ. 50 mVrms typ. Wide Band Noise (5 Hz - 2 MHz) Narrow Band Noise (20 Hz - 100 kHz) Narrow Band Noise (20 Hz - 100 kHz) Filter Mounting Assembly FMA-01A FMA-01A Filter Mounting Assembly FMA-01A 1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot. 2 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 D61 Series Specification (25C and Vs 15 Vdc) Analog Input Characteristics Impedance 10 kW 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 2 Maximum Current 2 mA 3 02 mV typ. Offset Voltage 10 mV max. Offset Temp. Coeff. 50 mV / C Power Supply (V) Rated Voltage Operating Range Maximum Safe Voltage Quiescent Current D61 Temperature Operating Storage 1 Pin-Out and Package Data Ordering Information 0.80 Side View 0.025 dia. 1.80 All dimensions are in inches All case dimensions 0.01" Front View 0.50 0.15 (min) 0.80 0.70 OUT +VS -VS OS4 Bottom View GND IN - 15 Vdc 5 to 18 Vdc 18 Vdc 12.5 mA typ. 20 mA max. 0.10 0.00 0.00 0.15 0.45 0.55 1.55 1.65 1.80 Filter Mounting Assembly-See FMA-01A 0 to + 70 C - 25 to + 85 C Ordering Information Filter Type L - Low Pass H - High Pass Transfer Function B - Butterworth L - Bessel 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. DC Offset Adjustment Vs Do not connect if trim is not required. 20 k W (Cermet) OS D61L4B-0.05 Hz - 3 dB Corner Frequency 5 4. Units operate with or without offset pin connected. e.g., 0.05 Hz 0.85 Hz 1.00 Hz - Vs 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 0.02 Hz to 1.00 Hz. 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-00D61-00 3 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 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). Normalized Delay Actual Delay = Actual Corner Frequency (fc) in Hz 1 2 3 4 Normalized Time (1/f sec) 5 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 2 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). Normalized Delay Actual 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 7 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). Normalized Delay Actual 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 |
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