R854L8Y5-6

R854 FREQUENCYDEVICES | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 13

Technical content

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 1.0 Hz to 102.4 kHz 8-Bit Programmable R854 Series 2" x 4" Range Switch 4-Pole Filters

Description

The R854 Series are digitally programmable, 4-pole low-pass and high-pass active filters that contain a low and a high programmable frequency range, with each range tunable over a 256:1 ratio. R854 filters are available with any two of five standard factory- set tuning ranges or 8-bit custom ranges from 1.0 Hz to 102.4 kHz. These units contain 8 CMOS logic inputs that can be operated in a transparent or latching mode and 1 logic input for range selection. All R854 Series models are convenient, easy to use fully finished filters which require no external components or adjustments. They feature low harmonic distortion, and precision phase and amplitude characteristics. R854 filters operate from non-critical ±12 to ±18 Vdc power supplies, have a 10 kΩ (min.) input impedance, a 10 Ω (max.) output impedance. Features/Benefits:  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-set tuning range, no external clocks or adjustments needed.  Broad range of transfer characteristics and corner frequencies to meet a wide range of applications.  Low profile design, ideal for rack mount installations.

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  Real and compressed time data analysis  Noise elimination  Signal reconstruction General Specifications:

8-Bit Programmable Filters R854 Series Digital Tuning & Control Characteristics e-mail: sales@freqdev.com  Web Address: http://www.freqdev.com 27 26 25 24 23 22 21 20 D7 D6 D5 D4 D3 D2 D1 D0 00000000 f max/256 00000001 f max/128 00000011 f max/64 00000111 f max/32 00001111 f max/16 00011111 f max/8 00111111 f max/4 01111111 f max/2 11111111 fmax Bit Weight fc Corner Frequency +VsOUT -Vs D D D D GND D D D D CPIN Bottom ViewOs R Pin-Out Key IN Analog Input Signal D 7 Tuning Bit 7 (MSB) OUT Analog Output Signal D 6 Tuning Bit 6 GND Power and Signal Return D 5 Tuning Bit 5 "P" Transition Polarity Bit D 4 Tuning Bit 4 "C" Tuning Strobe Bit D 3 Tuning Bit 3 +Vs Supply Voltage, Positive D 2 Tuning Bit 2 -Vs Supply Voltage, Negative D 1 Tuning Bit 1 Os Optional Offset Adjustment D 0 Tuning Bit 0 (LSB) R Range Switch Adjustment Digital Tuning Characteristics The digital tuning interface circuits are two 4042 quad CMOS latches which accept the following CMOS-compatible inputs: eight tuning bits (D 0 - D7), a range selection bit (R), a latch strobe bit (C), and a transition polarity bit (P). Filter tuning follows the tuning equation given below: fc = ( fmax/256 ) [ 1 + D7 x 2 + D6 x 2 + D5 x 2 + D4 x 2 + D3 x 2 + D2 x 2 + D1 x 2 + D0 x 2 where D1 - D7 = "0" or "1", and fmax = Maximum tuning frequency; fc = corner frequency; R = 0, Maximum low range R = 1, Maximum Minimum tunable frequency = fmax/256 (D0 thru D7 = 0); Minimum frequency step (Resolution) = fmax/256 Data Control Specifications Data Control Lines Functions Latch Strobe (C) Transition Polarity (P) Data Control Modes Mode 1 P = 0; C = 0 frequency follows input codes P = 0; C = 0› frequency latched on rising edge Mode 2 P = 1; C = 1 frequency follows input codes P = 1; C = 1fl frequency latched on falling edge Input Data Levels (CMOS Logic) Input Voltage (Vs = 15 Vdc) Low Level In 0 Vdc min. 4 Vdc max. High Level In 11 Vdc min. 15 Vdc max. Input Current High Level In - 10 mA typ. -1 mA max. Low Level In +10 mA typ. +1 mA max. Input Capacitance 5 pF typ 7.5 pF max. Latch Response Data Set Up Time 25 nS Data Hold Time 50 nS Strobe Pulse Width 80 nS min. Input Data Format Frequency Select Bits Positive Logic Logic "1" = +Vs Logic "0" = Gnd Bit Weighting (Binary-Coded) D

0 LSB (least significant bit)

D7 MSB (most significant bit) Frequency Range 256 : 1, Binary Weighted Notes: 1.Frequency data must be present before occurrence of strobe edge. 2.Frequency data must be present after occurrence of strobe edge.

e-mail: sales@freqdev.com  Web Address: http://www.freqdev.com Range Switch 8-Bit Programmable Model R854L8B R854L8L R854L8Y2 R854L8Y5 Product Specifications Transfer Function 4-Pole, 4-Pole, 4-Pole, Chebychev, 4-Pole, Chebychev, Butterworth Bessel 0.2 dB Ripple 0.5 dB Ripple Range f Theoretical Transfer Appendix A Appendix A Appendix A Appendix A Characteristics Page 7 Page 2 Page 12 Page 15 Passband Ripple 0.0 dB 0.0 dB 0.2 dB 0.5 dB (theoretical) Stopband Attenuation Rate 24 dB/octave 24 dB/octave 24 dB/octave 24 dB/octave Cutoff Frequency f c ± 2% max. f c ± 2% max. f c ± 2% max. f c ± 2% max. Amplitude - 3 dB - 3 dB - 3 dB - 3 dB ± 1° typ. ± 1° typ. ± 1° typ. ± 1° typ. Total Harmonic < - 100 dB typ. < - 100 dB typ. < - 88 dB typ. < - 88 dB typ. Distortion @ 1 kHz Wide Band Noise 200 mVrms typ. 200 mVrms typ. 200 mVrms typ. 200 mVrms typ. (5 Hz - 2 MHz) Narrow Band Noise 50 mVrms typ. 50 mVrms typ. 50 mVrms typ. 50 mVrms typ. (5 Hz - 100 kHz) Filter Mounting Assembly FMA-03A FMA-03A FMA-03A FMA-03A

e-mail: sales@freqdev.com  Web Address: http://www.freqdev.com Range Switch 8-Bit Programmable R854 Series 4-Pole High-Pass Filters 1.Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same m anufacturing lot. Model R854H8B R854H8Y2 R854H8Y5 Product Specifications Transfer Function 4-Pole, 4-Pole, Chebychev, 4-Pole, Chebychev, Butterworth 0.2 dB Ripple 0.5 dB Ripple Range f Theoretical Transfer Appendix A Appendix A Appendix A Characteristics Page 27 Page 31 Page 33 Passband Ripple 0.0 dB 0.2 dB 0.50 dB (theoretical) Voltage Gain 0 ± 0.2 dB to 100 kHz 0 ± 0.2 dB to 100 kHz 0 ± 0.2 dB to 100 kHz (non-inverting) 0 ± 0.5 dB to 120 kHz 0 ± 0.5 dB to 120 kHz 0 ± 0.5 dB to 120 kHz Power Bandwidth 120 kHz 120 kHz 120 kHz Small Signal Bandwidth (-6 dB) 1 MHz (-6 dB) 1 MHz (-6 dB) 1 MHz Stopband Attenuation Rate 24 dB/octave 24 dB/octave 24 dB/octave Cutoff Frequency f c ± 2% max. f c ± 2% max. f c ± 2% max. Stability ± 0.01% /°C ± 0.01% /°C ± 0.01% /°C Amplitude - 3 dB - 3 dB - 3 dB Phase Match1 fc - 100 kHz ± 3° max. f c - 100 kHz ± 3° max. f c - 100 kHz ± 3° max. Total Harmonic < - 100 dB typ. < - 88 dB typ. < - 88 dB typ. Distortion @ 1 kHz Wide Band Noise 400 mVrms typ. 400 mVrms typ. 400 mVrms typ. Narrow Band Noise 100 mVrms typ. 100 mVrms typ. 100 mVrms typ. (5 Hz - 100 kHz) Filter Mounting Assembly FMA-03A FMA-03A FMA-03A

(25°C and Vs ± 15 Vdc) R854 Series Pin-Out and Package Data

Ordering Information

We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider th e 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-00R854-01 DC Offset Adjustment ± Vs - Vs 20 k W (Cermet) Do not connect if trim is not required. OS Analog Input Characteristics1 Impedance 10 k W min. Voltage Range ± 10 Vpeak Max. Safe Voltage ±Vs Analog Output Characteristics Impedance (Closed Loop) 11 W typ. 10 W max. Linear Operating Range ±10V Maximum Current2 ±2 mA Offset Voltage3 22 mV typ. 20 mV max. Offset Temp. Coeff. 50 mV/°C Power Supply (±Vs) Rated Voltage ±15 Vdc Operating Range ±12 to ±18 Vdc Maximum Safe Voltage ±18 Vdc Quiescent Current 4-Pole ±13 mA typ. ±20 mA max. Temperature Operating -20 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 NOT CONNECT TO ±Vs. 3. Adjustable to zero. 4. Units operate with or without offset pin connected. R854L8B-3/5 Transfer Function B - Butterworth L - Bessel Y2 - Chebychev (0.2 dB Ripple) Y5 - Chebychev (0.2 dB Ripple) Filter Type L - Low Pass H - High Pass e-mail: sales@freqdev.com  Web Address: http://www.freqdev.com Model Tuning Minimum Number Range (Hz) Step(Hz) 2 1.0 to 256 1.0 3 10 to 2560 10 4 100 to 25.6k 100 5 200 to 51.2k 200 6 400 to 102.4k 400 Model Number e.g., Side View +VsOUT -Vs D D D D GND D D D D CPIN 2.00 0.6 4.00 Bottom View 0.2 min 0.04 Dia. Os R Filter Mounting Assembly-See FMA-03A Pin-Out & Package Data All dimensions are in inches All Case Dimensions ± 0.02" Grid Dimensions 0.1" x 0.1"

e-mail: sales@freqdev.com  Web Address: http://www.freqdev.com November 2000 Programmable Filters Modules 818, 824, 828, 828BP, 828BR, 854, 858, R854, R858 I. Scope The following precautions are necessary when handling and installing Frequency Devices programmable filter modules. II. Digital Circuit Description The digital input pins connect directly to 4000 series CMOS logic, such as the 4053 analog switch. The power supply (Vss) for the digital logic on the module comes directly from the +15 Volt pin on the module. This sets the threshold voltage at 11.0 V minimum to 15.0 V maximum for a "1" (High) level V will produce unpredictable operation. Connecting 5 Volt or 3.3 V logic devices directly to the filter module without using a voltage translator will result in erratic operation of the filter. III. (VERY IMPORTANT) Power-Up and Power-Down Sequence Do not plug-in or un-plug module while power is applied. It is imperative that power is supplied to the + 15 V pin on the filter module before or at the same instance that any digital pin is pulled High (> 0.0 V). Failure to do this will result in excessive current flowing through the digital input pin and through a protection diode internal to the 4000 logic, which will result in damage to the module. The proper power-up and power-down sequence is: 1. Connect filter module ground. 2. Connect filter module +15 V. 3. Connect filter module -15 V. 4. Connect the input signal. All four of the above steps can also occur simultaneously. Power-down should occur in the reverse order. IV. ESD Issues Like most modern electronic equipment, the modules can be damaged by electrostatic discharge (ESD). The modules are shipped from the factory in sealed, anti-static packaging and should be kept in the sealed package prior to mounting on a circuit board. The following additional rules should also be observed when handling the modules after they are removed from the factory packaging: 1. Only a person wearing a properly grounded wrist strap should handle the modules. 2. Any work surface that the modules are placed on must be properly ESD grounded. 3. Any insulating materials capable of generating static charge (such as paper) should be kept away from the modules. Static generating clothing should be covered with an ESD-protective smock. Product Handling Procedure Programmable Filter Modules Power Sequence & ESD

e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Normalized Frequency(f/fc) Amp (dB) Normalized Time (1/f sec) Delay (sec) Normalized Time (1/f sec) Step Response (V/V) Frequency Response Delay (Normalized) Step Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 7 -100 -80 -60 -40 -20 0.1 1.02 3 4 5 6 7 8 90.0 0.5 1.0 1.50.15 0 1 2 3 4 5 -0.0 -0.2 0.2 0.4 0.6 0.8 1.0 1.2 (sec) Theoretical Transfer Characteristics 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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 f/fc (Hz) Amp (dB) Phase (deg) Delay 0.00 -12.1 -24.2 -36.3 -48.4 -60.6 -48.1 -53.4 -58.0 -62.0 -65.7 -25.1 -27.6 -30.0 -34.4 -41.9 -12.2 -13.4 -16.5 -19.5 -22.4 -6.37 -7.42 -8.54 -9.71 -10.9 -2.69 -3.01 -3.71 -4.51 -5.39 -1.02 -1.41 -1.86 -2.11 -2.40 0.00 -0.028 -0.111 -0.251 -0.448 -0.705 -315 -321 -326 -330 -333 -267 -275 -281 -291 -305 -212 -219 -235 -248 -259 -166 -177 -187 -195 -204 -115 -121 -133 -144 -156 -72.7 -84.8 -96.8 -103 -109 .021 .016 .012 .009 .008 .089 .076 .065 .049 .031 .211 .194 .158 .129 .107 .295 .280 .263 .246 .228 .332 .330 .325 .318 .308 .336 .336 .335 .334 .333 .336 .336 .336 .336 .336 .336

e-mail: sales@freqdev.com Web Address: http://www.freqdev.com (sec) Normalized Frequency(f/fc) Amp (dB)Delay (sec) Normalized Time (1/f sec) Step Response (V/V) Theoretical Transfer Characteristics Frequency Response Delay (Normalized) Step Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.1 1.02 3 4 5 6 7 8 90.0 1.0 2.0 1.50.15 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 5.00 6.00 7.00 8.00 9.00 10.0 -62.3 -67.6 -72.2 -76.3 -80.0 -38.2 -41.0 -43.5 -48.2 -55.9 -22.3 -24.1 -28.2 -31.8 -35.1 -12.0 -14.3 -16.4 -18.5 -20.5 -2.21 -3.01 -4.97 -7.24 -9.62 -0.072 -0.243 -0.674 -1.047 -1.555 0.00 0.00 0.00 -0.00 -0.003 -0.017 0.00 -15.0 -30.1 -45.5 -61.4 -78.0 -95.7 -115 -136 -147 -158 -169 -180 -200 -217 -231 -242 -252 -260 -266 -272 -277 -282 -291 -299 -304 -309 -313 -317 -322 -330 -335 -339 -341 -343 -345 .012 .009 .007 .005 .004 .049 .041 .035 .027 .017 .134 .119 .091 .072 .059 .289 .241 .204 .175 .152 .612 .588 .513 .427 .350 .511 .558 .604 .619 .622 .416 .418 .423 .433 .449 .474 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 f/fc (Hz) Amp (dB) Phase (deg) Delay Normalized Frequency(f/fc)

4-Pole, 0.2 dB Ripple Appendix A Cheb ychev 12 \\ e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Normalized Frequency(f/fc) Amp (dB) Normalized Time (1/f sec) Delay (sec) Normalized Time (1/f sec) Step Response (V/V) Frequency Response Delay (Normalized) Step Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 78 -100 -80 -60 -40 -20 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.1 1.02 3 4 5 6 7 8 90.0 1.0 2.0 1.50.15 (sec) Theoretical Transfer Characteristics 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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 f/fc (Hz) Amp (dB) Phase (deg) Delay -71.9 -77.3 -82.0 -86.1 -89.8 -47.3 -50.2 -52.8 -57.6 -65.5 -30.2 -32.2 -36.7 -40.6 -44.1 -17.7 -20.7 -23.4 -25.8 -28.1 -1.47 -3.01 -6.89 -10.8 -14.5 0.000 0.074 0.199 0.063 -0.443 0.000 0.039 0.129 0.195 0.174 0.074 -347 -349 -351 -352 -352 -334 -336 -338 -341 -345 -294 -300 -306 -310 -313 -214 -231 -257 -274 -286 -113 -135 -162 -178 -196 0.00 -17.3 -35.2 -54.0 -73.4 -93.2 .006 .004 .003 .003 .002 .026 .022 .018 .014 .009 .078 .068 .051 .039 .032 .202 .158 .128 .107 .090 .989 .873 .583 .385 .271 .575 .654 .836 .947 1.02 .478 .487 .509 .533 .547 .553 -316 -319 -324 -328 -331

4-Pole, 0.5 dB Ripple Appendix A Cheb ychev e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Normalized Frequency(f/fc) Amp (dB) Normalized Time (1/f sec) Delay (sec) Normalized Time (1/f sec) Step Response (V/V) Frequency Response Delay (Normalized) Step Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 78 -100 -80 -60 -40 -20 0.1 1.02 3 4 5 6 7 8 90.0 1.0 2.0 1.50.15 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 (sec) Theoretical Transfer Characteristics 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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 f/fc (Hz) Amp (dB) Phase (deg) Delay -74.0 -79.4 -84.1 -88.2 -91.9 -49.3 -52.2 -54.9 -59.7 -67.6 -32.1 -34.1 -38.6 -42.6 -46.1 -350 -351 -352 -353 -354 -339 -340 -342 -344 -347 -324 -326 -301 -334 -336 .005 .004 .003 .002 .002 .021 .018 .015 .011 .007 .065 .057 .042 .033 .026 -19.3 -22.4 -25.1 -27.6 -29.9 -1.12 -3.01 -7.61 -12.0 -15.9 -305 -311 -315 -318 -321 0.025 0.072 0.432 0.482 0.062 -226 -245 -272 -288 -298 .173 .134 .108 .089 .075 1.13 .946 .559 .345 .235 0.00 0.087 0.295 0.474 0.463 0.248 -119 -141 -168 -185 -205 0.00 -17.3 -35.7 -55.7 -76.9 -98.2 .578 .647 .881 1.06 1.18 .476 .492 .533 .577 .596 .583

e-mail: sales@freqdev.com Web Address: http://www.freqdev.com (sec) Normalized Frequency(f/fc) Amp (dB) Theoretical Transfer Characteristics Frequency Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 7 -100 -80 -60 -40 -20 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.0 0.00 0.00 0.00 0.00 0.00 0.00 -0.039 -0.017 -0.003 -0.001 0.00 -3.99 -3.01 -0.908 -0.285 -0.100 -17.8 -12.6 -8.43 -6.69 -5.22 -80.0 -55.9 -41.8 -31.8 -24.1 345 330 314 299 282 264 245 224 213 202 191 180 143 118 100 87.6 78.0 61.4 50.7 37.8 30.1 25.1 21.4 18.8 16.7 15.0 .017 .012 .009 .007 .005 .004 .152 .119 .072 .049 .027 .612 .588 .427 .289 .204 .511 .558 .604 .619 .622 .418 .423 .433 .449 .474 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 f/fc (Hz) Amp (dB) Phase (deg) Delay

4-Pole, 0.2 dB Ripple Appendix A Cheb ychev e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Normalized Frequency(f/fc) Amp (dB) Frequency Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 78 -100 -80 -60 -40 -20 (sec) Theoretical Transfer Characteristics 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.20 1.50 1.70 2.00 2.50 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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 f/fc (Hz) Amp (dB) Phase (deg) Delay .060 .048 .040 .200 .170 .129 .098 .076 .140 .031 .003 .074 .174 -25.0 -18.6 -12.7 -7.34 -3.01 -89.8 -65.1 -51.1 -40.6 -32.2 21.7 19.3 17.3 60.4 44.5 35.2 29.2 24.9 172 128 111 93.2 73.4 308 296 280 259 231 352 345 337 328 319 .008 .006 .005 .060 .033 .020 .014 .010 .633 .275 .197 .138 .088 .314 .383 .500 .686 .873 .212 .218 .228 .245 .272

4-Pole, 0.5 dB Ripple Appendix A Cheb ychev e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Normalized Frequency(f/fc) Amp (dB) Frequency Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 78 -100 -80 -60 -40 -20 (sec) Theoretical Transfer Characteristics 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.20 1.50 1.70 2.00 2.50 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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 f/fc (Hz) Amp (dB) Phase (deg) Delay .133 .107 .088 .498 .401 .296 .221 .169 .500 .014 .043 .249 .469 -26.8 -20.2 -14.0 -8.13 -3.01 -91.9 -67.6 -53.1 -42.6 -34.1 21.8 19.3 17.3 62.7 45.5 35.7 29.4 25.0 179 133 117 98.2 76.9 317 307 293 274 245 354 347 341 334 326 .008 .006 .005 .065 .035 .021 .014 .010 .693 .271 .199 .146 .095 .263 .326 .440 .651 .946 .174 .179 .188 .203 .226