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D64 & DP64 Series
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. 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
32-Pin DIP 4 - Pole Filters
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
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: sales@freqdev.com * Web Address: http://www.freqdev.com
D64 & DP64 Series
Fixed Frequency
Model Product Specifications Transfer Function Size Range fc D64 DP64 Theoretical Transfer Characteristics Passband Ripple
(theoretical)
4-Pole Low-Pass Filters
D64L4L & DP64L4L D64L4Y2 & DP64L4Y2 D64L4Y5 & DP64L4Y5
D64L4B & DP64L4B
4-Pole, Butterworth 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz 1 Hz to 5 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 -3dB -180 0.67 dB 3.01 dB 30.0 dB 40.0 dB 0 - 0.8 fc 0.8 fc - 1.0 fc 1% max.
4-Pole, Bessel 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz 1 Hz to 5 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 -3dB -121 1.86 dB 3.01 dB 30.0 dB 40.0 dB 0 - fc 1% max.
4-Pole, Chebychev, 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz 1 Hz to 5 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 -3dB -231 -0.20 dB 3.01 dB 30.0 dB 40.0 dB 0 - 0.8 fc 0.8 fc - 1.0 fc 1% max.
4-Pole, Chebychev, 0.5 dB Ripple 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz 1 Hz to 5 kHz Appendix A Page 15 0.50 dB 0 0.1 dB max. 0 0.05 dB typ. 24 dB/octave fc 0.01% /C -3dB -245 -0.43 dB 3.01 dB 30.0 dB 40.0 dB 1% 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 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.
0.80 fc 1.00 fc 1.89 fc 2.46 fc
0.80 fc 1.00 fc 1.80 fc 2.33 fc 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.
Phase Match1
2 max. 0 - 0.8 fc 1 typ. 3 max. 0.8 fc - 1.0 fc 1.5 typ. 0 - 0.8 fc 0.8 - 1.0 fc
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.
0.2 dB max. 0.1 dB typ. 0.8 fc - 1.0 fc 0.3 dB max. 0.15 dB typ.
0 - 0.8 fc
Total Harmonic Distortion @ 1 kHz D64 DP64 Wide Band Noise
(5 Hz - 2 MHz)
<-100 dB <-80 dB 200 Vrms typ. 50 Vrms typ.
<-100 dB <-80 dB 200 Vrms typ. 50 Vrms typ.
<-88 dB <-80 dB 200 Vrms typ. 50 Vrms typ.
<-88 dB <-80 dB 200 Vrms typ. 50 Vrms typ.
Narrow Band Noise
(20 Hz - 100 kHz)
Filter Mounting Assembly
FMA-01S
FMA-01S
FMA-01S
FMA-01S
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: sales@freqdev.com * Web Address: http://www.freqdev.com
D64 & DP64 Series
Fixed Frequency
Model Product Specifications Transfer Function Size Range fc D64 DP64 Theoretical Transfer Characteristics Passband Ripple
(theoretical)
4-Pole High-Pass Filters
64H4Y2 D64H4Y5
D64H4B
4-Pole, Butterworth 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz Not Available 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 fc - 100 kHz 1% max.
4-Pole, Chebychev, 0.2 dB Ripple 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz Not Available Appendix A Page 31 0.20 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 -231 40 dB 30 dB 3.01 dB -0.07 dB fc - 100 kHz 1% max.
4-Pole, Chebychev, 0.5 dB Ripple 1.8" x 0.8" x 0.3" 1 Hz to 100 kHz Not Available Appendix A Page 33 0.50 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 -245 40 dB 30 dB 3.01 dB -0.25 dB fc - 100 kHz 1% 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 3 max. 1.5 typ.
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
Amplitude Accuracy
(theoretical)
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
(5 Hz - 2 MHz)
<-88 dB 400 Vrms typ. 100 Vrms typ.
<-88dB 400 Vrms typ. 100 Vrms typ.
<-88 dB 400 Vrms typ. 100 Vrms typ.
Narrow Band Noise
(20 Hz - 100 kHz)
Filter Mounting Assembly
FMA-01S
FMA-01S
FMA-01S
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: sales@freqdev.com * Web Address: http://www.freqdev.com
D64 & DP64 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(Closed Loop) 1 typ. 10 max. Linear Operating Range 10 V 2 Maximum Current 2 mA 3 02 mV typ. Offset Voltage 10 mV max. Offset Temp. Coeff. 50 V / C Power Supply (V) Rated Voltage Operating Range Maximum Safe Voltage Quiescent Current D64 DP64 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
0.30 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. 3.5 mA typ. 5 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
Ordering Information
Filter Type L - Low Pass H - High Pass Transfer Function B - Butterworth L - Bessel Y2 - 0.2 Ripple Chebychev Y5 - 0.5 Ripple Chebychev
-
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.
DC Offset Adjustment
Vs Do not connect if trim is not required. 20 k (Cermet) OS Power Level
D64L4B-849 Hz
D - Standard Power DP - Low Power
4. Units operate with or with out offset pin connected.
- 3 dB Corner Frequency
5
e.g., 849 Hz 2.50 kHz 33.3 kHz
- 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 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: 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). Actual Delay = Normalized Delay Actual Corner Frequency (fc) in Hz
1 2 3 4 Normalized Time (1/f sec)
5
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 Fax on Demand: 978/521-5178
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). Actual Delay = Normalized Delay Actual Corner Frequency (fc) in Hz
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 Fax on Demand: 978/521-5178
7
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
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 Fax on Demand: 978/521-5178
12
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
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 Fax on Demand: 978/521-5178
15
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
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 Fax on Demand: 978/521-5178
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
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 Fax on Demand: 978/521-5178
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
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 Fax on Demand: 978/521-5178
33

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