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| D74 & DP74 Series 1.0 Hz to 100 kHz Fixed Frequency Description The D74 and DP74 Series of low-power, fixedfrequency, linear active filters are high performance, 4-pole filters in a compact package. These Butterworth and Bessel low-pass and Butterworth high-pass filters (D74 only) combine linear active filter design with the space savings of a 16-pin dual in-line package (DIP). Each model comes factory tuned to a user-specified corner frequency between 1 Hz and 100 kHz (DP74, 1 Hz to 5kHz). These fully self-contained units require no external components or adjustments and operate with dynamic input voltage range from non-critical 5V to 18V power supplies. Features/Benefits: * Low cost solution for low frequency signal conditioning * Compact DIP design minimizes board space requirements * Plug-in ready-to-use, reducing engineering design and manufacturing time * Factory tuned, no external clocks or adjustments needed saving time and labor of other discrete assembly solutions * Low harmonic distortion and wide signal-to-noise ratio to 12 bit resolution Applications * Anti-alias filtering * Vibration & shock analysis * Automatic test equipment * Aerospace, navigation and sonar * Communication systems * Medical electronics * Sound and vibration testing * Noise elimination * Process control Available D74L4B DP74L4B D74L4L DP74L4L Low-Pass Models: . . . . . . . . . . . . . . . . 4-pole Butterworth . . . . . . . . . . . . . . .2 4-pole Butterworth (Low Power) . . . . .2 4-pole Bessel . . . . . . . . . . . . . . . . . . .2 4-pole Bessel (Low Power) . . . . . . . .2 16 Pin DIP 4-Pole Filters Available High-Pass Models: D74H4B 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 D74 & DP74 Series Fixed Frequency Model Product Specifications Transfer Function Size Range fc D74 DP74 Theoretical Transfer Characteristics Passband Ripple (theoretical) 4-Pole Low-Pass and High-Pass Filters D74L4L & DP74L4L Low-Pass 4-Pole, Bessel 0.88" x 0.46" x 0.375" 1 Hz to 100 kHz 1 Hz to 5 kHz Appendix A Page 2 0.0 dB 0 0.1 dB typ. Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple (theoretical) D74L4B & DP74L4B Low-Pass 4-Pole, Butterworth 0.88" x 0.46" x 0.375" 1 Hz to 100 kHz 1 Hz to 5 kHz Appendix A Page 7 0.0 dB 0 0.1 dB typ. Model D74H4B High-Pass 4-Pole, Butterworth 0.88" x 0.46" x 0.375" 1 Hz to 100 kHz Appendix A Page 27 0.0 dB 0 0.1 dB to 100 kHz DC Voltage Gain (non-inverting) Voltage Gain (non-inverting) Stopband Attenuation Rate 24 dB/octave 24 dB/octave Stopband Attenuation Rate Power Bandwidth Small Signal Bandwidth 24 dB/octave 120 kHz (-6 dB) 1 MHz fc 0.03% /C -3 dB -180 80 dB 60 dB 3.01 dB 0.00 dB 2% max. Cutoff Frequency Stability Amplitude Phase Filter Attenuation (theoretical) fc 0.03% /C -3 dB -180 0.67 dB 3.01 dB 60.0 dB 80.0 dB 2% max. fc 0.03% /C -3 dB -121 1.86 dB 3.01 dB 60.0 dB 80.0 dB 2% max. Cutoff Frequency Stability Amplitude Phase Filter Attenuation (theoretical) 0.80 fc 1.00 fc 5.62 fc 10.0 fc 0.80 fc 1.00 fc 8.48 fc 15.12 fc 0.10 fc 0.18 fc 1.00 fc 4.00 fc Total Harmonic Distortion @ 1 kHz D74 DP74 Wide Band Noise (5 Hz - 2 MHz) <-70 dB <-70 dB 200 mVrms typ. 50 mVrms typ. <-70 dB <-70 dB 200 mVrms typ. 50 mVrms typ. Total Harmonic Distortion @ 1 kHz D74 Wide Band Noise (5 Hz - 2 MHz) <-70 dB 400 mVrms typ. 100 mVrms typ. 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 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 D74 & DP74 Series Specification (25C and Vs 15 Vdc) Analog Input Characteristics Impedance 10 k min. Voltage Range 10 Vpeak Max. Safe Voltage Vs Analog Output Characteristics Impedance 1 Linear Operating Range 10 V 2 Maximum Current D74 10 mA DP74 5 mA Offset Voltage 1 fc < 100 Hz fc 100 Hz 0 - 50C 0 - 70C 10 mV max. 10 mV max. 3 mV typ. 3 mV typ. Offset Temp. Coeff. 20 V / C 1 Pin-Out and Package Data Ordering Information All dimensions are in inches All case dimensions 0.01" Grid Dimensions 0.1" x 0.1" IN 1 -Vs 8 15 GND 12 11 +Vs OUT BOTTOM VIEW (max.) 0.46 0.375 (max.) (max.) 0.88 0.15 (min.) 0.025 0.09 (typ.) 0.30 (typ.) 0.10 (typ.) (dia.) FRONT VIEW SIDE VIEW Filter Mounting Assembly-See FMA-01A Power Supply (V) Rated Voltage 15 Vdc Operating Range 5 to 18 Vdc Maximum Safe Voltage 18 Vdc Quiescent Current D74 5 mA max. 3 mA typ. Quiescent Current DP74 1.5 mA max. 600 A typ. 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 NOTCONNECTTO Vs. Ordering Information Filter Type L - Low Pass H - High Pass Transfer Function B - Butterworth L - Bessel D74L4B-849 Hz Power Level D - Standard Power DP - Low Power - 3 dB Corner Frequency 3 e.g., 849 Hz 2.50 kHz 33.3 kHz 3.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 Hz to 100 kHz. 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 as sume 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 copyri ght. IN-00D74-01 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 1.0 Delay (sec) Delay (Normalized) 0.5 0.0 0.1 0.15 2 1.0 1.5 Normalized Time (1/f sec) 3 4 5 6 7 89 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 1.0 0.8 0.6 0.4 0.2 -0.0 -0.2 0 Step Response Step Response (V/V) 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 2.0 Delay (sec) Delay (Normalized) 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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