D64 & DP64 Series 32-Pin DIP 4 - Pole Filters 1.0 Hz to 100 kHZ Fixed Frequency Description The D64 and DP64 Series of small 4-pole fixedfrequency, precision active filters provide high performance linear active filtering in a compact 32pin DIP package, with a broad range of corner frequencies and a choice of transfer functions. Individual D64 filters can serve in low-pass or highpass applications (DP64, low-pass only) or be combined to create custom band-pass or bandreject filters. These fully self-contained units require no external components or adjustments. Each model comes factory tuned to a user-specified corner frequency between 1 Hz and 100 kHz (DP64, 1 Hz to 5 kHz) and operate with low total harmonic distortion over a wide dynamic input voltage range from non-critical +/-5V to +/-18V power supplies. Features/Benefits: • Low harmonic distortion and wide signal-to-noise ratio • 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 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 • Sound and vibration testing • Acoustic and vibration analysis and control • Noise elimination • Signal reconstruction Available Low-Pass Models: . . . . . . . . . . .Page D64L4B & DP64L4B 4-pole Butterworth . . . . . .2 D64L4L & DP64L4L 4-pole Bessel . . . . . . . . . .2 D64L4Y2 & DP64L4Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . . .2 D64L4Y5 & DP64L4Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . . .2 Available D64H4B D64H4Y2 D64H4Y5 High-Pass Models: 4-pole Butterworth . . . . . . . . . . . . . . . .3 4-pole Cheby (0.2 dB Ripple) . . . . . . . .3 4-pole Cheby (0.5 dB Ripple) . . . . . . . .3 General Specifications: Pin-out/package data & ordering information . . . .4 25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839 e-mail: [email protected] • Web Address: http://www.freqdev.com D64 & DP64 Series 4-Pole Low-Pass Filters Fixed Frequency Model D64L4B & DP64L4B D64L4L & DP64L4L D64L4Y2 & DP64L4Y2 D64L4Y5 & DP64L4Y5 Transfer Function 4-Pole, Butterworth 4-Pole, Bessel 4-Pole, Chebychev, 4-Pole, Chebychev, 0.5 dB Ripple Size 1.8” x 0.8” x 0.3” 1.8” x 0.8” x 0.3” 1.8” x 0.8” x 0.3” 1.8” x 0.8” x 0.3” Range fc D64 DP64 1 Hz to 100 kHz 1 Hz to 5 kHz 1 Hz to 100 kHz 1 Hz to 5 kHz 1 Hz to 100 kHz 1 Hz to 5 kHz 1 Hz to 100 kHz 1 Hz to 5 kHz Theoretical Transfer Characteristics Appendix A Page 7 Appendix A Page 2 Appendix A Page 12 Appendix A Page 15 Passband Ripple 0.0 dB 0.0 dB 0.20 dB 0.50 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 0 ± 0.1 dB max. 0 ± 0.05 dB typ. Stopband Attenuation Rate 24 dB/octave 24 dB/octave 24 dB/octave 24 dB/octave Cutoff Frequency Stability Amplitude Phase fc ± 0.01% /°C -3dB -180° Filter Attenuation 0.67 dB 3.01 dB 30.0 dB 40.0 dB 0.80 fc 1.00 fc 2.37 fc 3.16 fc 0 - 0.8 fc ± 2° max. ± 1° typ. ± 3° max. ± 1.5° typ. 0 - 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 Product Specifications (theoretical) DC Voltage Gain (non-inverting) (theoretical) Phase Match1 ± 1% max. 0.8 fc - 1.0 fc Amplitude Accuracy (theoretical) 0 - 0.8 fc Total Harmonic Distortion @ 1 kHz D64 DP64 Wide Band Noise fc ± 0.01% /°C -3dB -121° ± 1% max. 1.86 dB 3.01 dB 30.0 dB 40.0 dB 0.80 fc 1.00 fc 3.50 fc 4.72 fc ± 2° max. ± 1° typ. fc ± 0.01% /°C -3dB -231° ± 1% max. -0.20 dB 3.01 dB 30.0 dB 40.0 dB 0.80 fc 1.00 fc 1.89 fc 2.46 fc 0 - 0.8 fc <-100 dB <-80 dB 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. <-100 dB <-80 dB ± 1% max. -0.43 dB 3.01 dB 30.0 dB 40.0 dB 0.80 fc 1.00 fc 1.80 fc 2.33 fc ± 2° max. 0 - 0.8 fc ± 1° typ. ± 3° max. 0.8 fc - 1.0 fc ± 1.5° typ. 0.8 fc - 1.0 fc ± 0.2 dB max. ± 0.1 dB typ. fc ± 0.01% /°C -3dB -245° 0 - 0.8 fc 0.8 - 1.0 fc <-88 dB <-80 dB ± 2° max. ± 1° typ. ± 3° max. ± 1.5° typ. ± 0.2 dB max. ± 0.1 dB typ. ± 0.3 dB max. ± 0.15 dB typ. <-88 dB <-80 dB 200 µVrms typ. 200 µVrms typ. 200 µVrms typ. 200 µVrms typ. 50 µVrms typ. 50 µVrms typ. 50 µVrms typ. 50 µVrms typ. FMA-01S FMA-01S FMA-01S FMA-01S (5 Hz - 2 MHz) Narrow Band Noise (20 Hz - 100 kHz) Filter Mounting Assembly 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 25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839 e-mail: [email protected] • Web Address: http://www.freqdev.com D64 & DP64 Series 4-Pole High-Pass Filters Fixed Frequency Model D64H4B 64H4Y2 D64H4Y5 Transfer Function 4-Pole, Butterworth 4-Pole, Chebychev, 0.2 dB Ripple 4-Pole, Chebychev, 0.5 dB Ripple Size 1.8” x 0.8” x 0.3” 1.8” x 0.8” x 0.3” 1.8” x 0.8” x 0.3” Range fc D64 DP64 1 Hz to 100 kHz Not Available 1 Hz to 100 kHz Not Available 1 Hz to 100 kHz Not Available Theoretical Transfer Characteristics Appendix A Page 27 Appendix A Page 31 Appendix A Page 33 Passband Ripple 0.0 dB 0.20 dB 0.50 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz Power Bandwidth 120 kHz 120 kHz 120 kHz Small Signal Bandwidth (-6dB) 1 MHz (-6dB) 1 MHz (-6dB) 1 MHz Stopband Attenuation Rate 24 dB/octave 24 dB/octave 24 dB/octave Cutoff Frequency Stability Amplitude Phase fc ± 0.01% /°C -3dB -180° Filter Attenuation 40 dB 30 dB 3.01 dB 0.02 dB Product Specifications (theoretical) Voltage Gain (non-inverting) (theoretical) Phase Match1 Amplitude Accuracy (theoretical) 0.31 fc 0.42 fc 1.00 fc 2.00 fc fc - 100 kHz ± 3° max. ± 1.5° typ. fc ± 0.01% /°C -3dB -231° ± 1% max. 40 dB 30 dB 3.01 dB -0.07 dB 0.41 fc 0.53 fc 1.00 fc 2.00 fc fc - 100 kHz ± 3° max. ± 1.5° typ. fc ± 0.01% /°C -3dB -245° ± 1% max. 40 dB 30 dB 3.01 dB -0.25 dB 0.43 fc 0.56 fc 1.00 fc 2.00 fc fc - 100 kHz ± 3° max. ± 1.5° typ. ± 0.30 dB max. 1.0 - 1.25 fc ± 0.30 dB max. 1.0 - 1.25 fc ± 0.30 dB max. ± 0.15 dB typ. ± 0.15 dB typ. ± 0.15 dB typ. 1.25 fc - 100 kHz± 0.20 dB max. 1.25 fc - 100 kHz ± 0.20 dB max. 1.25 fc - 100 kHz ± 0.20 dB max. ± 0.10 dB typ. ± 0.10 dB typ. ± 0.10 dB typ. 1.0 - 1.25 fc Total Harmonic Distortion @ 1 kHz D64 Wide Band Noise ± 1% max. <-88 dB <-88dB <-88 dB 400 µVrms typ. 400 µVrms typ. 400 µVrms typ. 100 µVrms typ. 100 µVrms typ. 100 µVrms typ. FMA-01S FMA-01S FMA-01S (5 Hz - 2 MHz) Narrow Band Noise (20 Hz - 100 kHz) Filter Mounting Assembly 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 25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839 e-mail: [email protected] • Web Address: http://www.freqdev.com D64 & DP64 Series Pin-Out and Package Data Ordering Information Specification (25°C and Vs ± 15 Vdc) 1 Analog Input Characteristics Impedance 10 kΩ min. Voltage Range ± 10 Vpeak Max. Safe Voltage ± Vs 0.80 Side View 0.025 dia. Analog Output Characteristics Impedance(Closed Loop) 1 Ω typ. 10 Ω max. Linear Operating Range ± 10 V 2 Maximum Current ± 2 mA 3 02 mV typ. Offset Voltage 10 mV max. Offset Temp. Coeff. 50 µV / °C Front View 0.30 0.15 (min) 0.80 0.70 OUT -VS OS4 +VS Bottom View GND - IN 1.55 1.65 0.45 0.55 15 Vdc 5 to ± 18 Vdc 18 Vdc 12.5 mA typ. 20 mA max. 3.5 mA typ. 5 mA max. 0.15 0.10 0.00 0.00 ± ± ± ± ± ± ± DP64 Temperature Operating Storage 1.80 1.80 Power Supply (±V) Rated Voltage Operating Range Maximum Safe Voltage Quiescent Current D64 All dimensions are in inches All case dimensions ± 0.01" Filter Mounting Assembly-See FMA-01A Ordering Information 0 to + 70 °C - 25 to + 85 °C 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. Filter Type Transfer Function L - Low Pass H - High Pass B - Butterworth L - Bessel Y2 - 0.2 Ripple Chebychev Y5 - 0.5 Ripple Chebychev D64L4B-849 Hz DC Offset Adjustment ± Vs Do not connect if trim is not required. 20 k Ω (Cermet) OS Power Level D – Standard Power DP – Low Power 4. Units operate with or with out offset pin connected. - Vs 5 - 3 dB Corner Frequency e.g., 849 Hz 2.50 kHz 33.3 kHz 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 1.00 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 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-00D64-01 4 25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839 e-mail: [email protected] • Web Address: http://www.freqdev.com Low-Pass 4-Pole Appendix A Bessel 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 Frequency Response Amp (dB) 0 -40 -60 -80 -100 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc) Delay (Normalized) Delay (sec) 1.0 0.5 0.0 0.1 0.15 2 3 4 5 6 7 89 1.0 1.5 Normalized Time (1/f sec) Step Response (V/V) Step Response 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 = -20 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 -0.2 0 1 2 3 4 Normalized Time (1/f sec) Normalized Delay Actual Corner Frequency (fc) in Hz 2 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178 5 Low-Pass 4-Pole Appendix A Butterworth 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 Frequency Response Amp (dB) 0 -40 -60 -80 -100 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc) Delay (Normalized) Delay (sec) 2.0 1.0 0.0 0.1 0.15 2 3 4 5 6 7 89 1.0 1.5 Normalized Frequency(f/fc) Step Response (V/V) Step Response 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 = -20 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 1 2 3 4 Normalized Time (1/f sec) Normalized Delay Actual Corner Frequency (fc) in Hz 7 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178 5 Low-Pass 4-Pole, 0.2 dB Ripple Appendix A Chebychev 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 Frequency Response Amp (dB) 0 -40 -60 -80 -100 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 810.0 Normalized Frequency(f/fc) Delay (Normalized) Delay (sec) 2.0 1.0 0.0 0.1 0.15 2 3 4 5 6 7 89 1.0 1.5 Normalized Time (1/f sec) Step Response (V/V) Step Response 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 = -20 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 1 2 3 4 Normalized Time (1/f sec) Normalized Delay Actual Corner Frequency (fc) in Hz 12 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178 5 Low-Pass 4-Pole, 0.5 dB Ripple Appendix A Chebychev 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 Frequency Response Amp (dB) 0 -40 -60 -80 -100 0.1 2 3 4 5 6 78 2 3 4 5 6 78 1.0 10.0 Normalized Frequency(f/fc) Delay (Normalized) Delay (sec) 2.0 1.0 0.0 0.1 0.15 2 3 4 5 6 7 89 1.0 1.5 Normalized Time (1/f sec) Step Response (V/V) Step Response 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 = -20 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 1 2 3 4 Normalized Time (1/f sec) Normalized Delay Actual Corner Frequency (fc) in Hz 15 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178 5 High-Pass 4-Pole Appendix A Butterworth 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 Frequency Response Amp (dB) 0 -20 -40 -60 -80 -100 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc) 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 27 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178 High-Pass 4-Pole, 0.2 dB Ripple Appendix A Chebychev 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 Frequency Response Amp (dB) 0 -20 -40 -60 -80 -100 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 8 10.0 Normalized Frequency(f/fc) 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 31 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178 High-Pass 4-Pole, 0.5 dB Ripple Appendix A Chebychev 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 Frequency Response Amp (dB) 0 -20 -40 -60 -80 -100 0.1 2 3 4 5 6 78 2 3 4 5 6 78 1.0 10.0 Normalized Frequency(f/fc) 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 33 25 Locust St., Haverhill, Massachusetts 01830 ∑Tel :800/252-7074, 978/374-0761 ∑FAX:978/521-1839 e-mail: [email protected] ∑Web Address: http://www.freqdev.com ∑Fax on Demand: 978/521-5178