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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 1.0 hz to 102.4 khz 8-bit programmable 828 series 2" x 2" 8-pole filters description the 828 series are digitally programmable low-pass and high-pass active filters that are tunable over a 256:1 frequency range. 828 filters are available with any one 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. all 828 series models are convenient, low profile, easy to use fully finished filters which require no external components or adjustments. they feature low harmonic distortion, and near theoretical phase and amplitude characteristics. 828 filters operate from non-critical 12 to 18 vdc power supplies, have a 10 k ? (min.) input and a 10 ? (max.) output impedance. features/benefits: ? compact 2" x 2" design minimizes board space requirements . ? low harmonic distortion and wide signal-to-noise ratio to 16 bit resolution . ? 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. 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 programmable specifications: . . . . . . . . . . . . . page digital tuning & control . . . . . . . . . . . . . . . . . . . . . 2 available low-pass models: . . . . . . . . . . . . . . . . . . 828 l8b 8-pole butterworth . . . . . . . . . . . . . . . . . 3 828 l8e 8-pole, 6 zero elliptic, 1.77 (-80db) . . . . 3 828 l8ex 8-pole, 6 zero elliptic, 1.56 (-80db) . . . . 3 828 l8ey 8-pole, 6 zero elliptic, 2.00 (-100db) . . . 3 828 l8l 8-pole bessel. . . . . . . . . . . . . . . . . . . . . 4 828 l8d60 8-pole constant delay (-60db) . . . . . . . . 4 828 l8d80 8-pole constant delay (-80db) . . . . . . . . 4 828 l8d10 8-pole constant delay (-100db) . . . . . . . . 4 available high-pass models: . . . . . . . . . . . . . . . . . . 828 h8b 8-pole butterworth . . . . . . . . . . . . . . . . . 5 828 h8e 8-pole, 6 zero elliptic, 1.77 (-80db) . . . . . 5 828 h8ex 8-pole, 6 zero elliptic, 1.56 (-80db) . . . . . 5 828h8ey 8-pole, 6 zero elliptic, 2.00 (-100db) . . . . 5 general specifications: ordering information . . . . . . . . . . . . . . . . . . . . . . . . 6 pin-out/package data . . . . . . . . . . . . . . . . . . . . . . . . 6
8-bit programmable filters 828 series digital tuning & control characteristics 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 2 digital tuning characteristics the digital tuning interface circuits are a parallel set of eight (8) 4053 cmos switches which accept cmos compatible inputs for the eight tuning bits (d 0 - d 7 ). filter tuning follows the tuning equation given below: f c = ( f max /256 ) [ 1 + d 7 x 2 7 + d 6 x 2 6 + d 5 x 2 5 + d 4 x 2 4 + d 3 x 2 3 + d 2 x 2 2 + d 1 x 2 1 + d 0 x 2 0 ] where d 1 - d 7 = "0" or "1", and f max = maximum tuning frequency; f c = corner frequency; minimum tunable frequency = f max /256 (d 0 thru d 7 = 0); minimum frequency step (resolution) = f max /256 data input specifications 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 -5 a typ. -1 a max. . low level in +10 -5 a typ . +1 a max. input capacitance 5 pf typ 7.5 pf max. input data format frequency select bits positive logic logic "1" = +vs logic "0" = gnd bit weighting (binary-coded) d 0 lsb (least significant bit) d 7 msb (most significant bit) frequency range 256 : 1, binary weighted 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 +vs supply voltage, positive d 4 tuning bit 4 -vs supply voltage, negative d 3 tuning bit 3 os offset adjustment d 2 tuning bit 2 d 1 tuning bit 1 d 0 tuning bit 0 (lsb) msb --- --- --- --- --- --- lsb bit weight 2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0 fc corner frequency d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 00000000f max /256 00000001f max /128 00000011f max /64 00000111f max /32 00001111f max /16 00011111f max /8 00111111f max /4 01111111f max /2 11111111 fmax +vs out -vs d d d d gnd d d d d in 2.00 bottom view os 4 5 3 2 1 0 6 7 4
828 series 8-pole low-pass filters 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 8-bit programmable 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. 3 model 828l8b 828l8e 828l8ex 828l8ey product specifications transfer function 8-pole 8-pole, 6 zero 8-pole, 6 zero 8-pole, 6 zero butterworth elliptic elliptic elliptic size 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 range f c , f r 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz theoretical transfer appendix a appendix a appendix a appendix a characteristics page 9 page 24 page 23 page 25 passband ripple 0.0 db 0.035 db - 0.05 db - 0.05 db (theoretical) dc voltage gain 0 0.1 db max. 0 0.1 db max. 0 0.1 db max. 0 0.1 db max. (non-inverting) 0 0.05 db typ. 0 0.05 db typ. 0 0.05 db typ. 0 0.05 db typ. stopband attenuation rate 48 db/octave 80 db min. 80 db min. 100 db min. cutoff frequency f c 2% max. f r 2% max. f r 2% max. f r 2% max. stability 0.01% /? 0.01% /? 0.01% /? 0.01% /? amplitude -3 db -0.035 db -0.05db -0.05 db phase -360 -323.5 -414 -419 filter attenuation 0.12 db 0.80 f c 0.035 db 1.00 f r 0.05 db 1.00 f r 0.05 db 1.00 f r (theoretical) 3.01 db 1.00 f c 3.01 db 1.13 f r 3.01 db 1.05 f r 3.01 db 1.06 f r 60.0 db 2.37 f c 60.0 db 1.67 f r 60.0 db 1.45 f r 80.0 db 1.83 f r 80.0 db 3.16 f c 80.0 db 1.77 f r 80.0 db 1.56 f r 100.0 db 2.00 f r phase match 1 0 - 0.8 f c 2 max. 0 - 0.8 f r 2 max. 0 - 0.8 f r 3 max. 0 - 0.8 f r 3 max. 1 typ. 1 typ. 1.5 typ. 1.5 typ. 0.8 fc - 1.0 f c 3 max. 0.8 f r - 1.0 f r 4 max. 0.8 f r - 1.0 f r 4 max. 0.8 f r - 1.0 f r 4 max. 1.5 typ. 2 typ. 2 typ. 2 typ. amplitude accuracy 0 - 0.8 f c 0.2 db max. 0 - 0.8 f r .2 db max. 0 - 0.8 f r 0.2 db max. 0 - 0.8 f r 0.2 db max. (theoretical) 0.1 db typ. .1 db typ. 0.1 db typ. 0.1 db typ. 0.8 f c - 1.0 f c 0.3 db max. 0.8 f r - 1.0 f r .3 db max. 0.8 f r - 1.0 f r 0.5 db max. 0.8 f r - 1.0 f r 0.5 db max. 0.15 db typ. .15 db typ. 0.25 db typ. 0.25 db typ. total harmonic < - 100 db typ. < - 88 db typ. < - 88 db typ. < - 88 db typ. distortion @ 1khz wide band noise 200 vrms typ. 200 vrms typ. 250 vrms typ. 250 vrms typ. (5 hz - 2 mhz) narrow band noise 50 vrms typ. 50 vrms typ. 75 vrms typ. 75 vrms typ. (5 hz - 100 khz) filter mounting assembly fma-02a fma-02a fma-02a fma-02a
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 828 series 8-pole low-pass filters 4 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 828l8l 828l8d60 828l8d80 828l8d10 product specifications transfer function 8-pole 8-pole, 6 zero 8-pole, 6 zero 8-pole, 6 zero bessel constant delay constant delay constant delay size 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 range f c 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz theoretical transfer appendix a appendix a appendix a appendix a characteristics page 4 page 20 page 21 page 22 passband ripple 0.0 db 0.15 db 0.15 db 0.15 db (theoretical) dc voltage gain 0 0.1 db max. 0 0.1 db max. 0 0.1 db max. 0 0.1 db max. (non-inverting) 0 0.05 db typ. 0 0.05 db typ. 0 0.05 db typ. 0 0.05 db typ. stopband attenuation rate 48 db/octave 60 db min. 80 db min. 100 db min. cutoff frequency f c 2% max. f c 2% max. f c 2% max. f c 2% max. stability 0.01% /? 0.01% /? 0.01% /? 0.01% /? amplitude -3 db -3 db -3 db -3 db phase -182 -306 -306 -311 filter attenuation 1.91 db 0.80 f c 3.01 db 1.00 f c 3.01 db 1.00 f c 3.01 db 1.00 f c (theoretical) 3.01 db 1.00 f c 40.0 db 2.28 f c 60.0 db 3.08 f c 80.0 db 4.45 f c 60.0 db 4.52 f c 60.0 db 2.64 f c 80.0 db 3.57 f c 100.0 db 5.20 f c 80.0 db 6.07 f c phase match 1 0 - f c 2 max. 0 - f c 2 max. 0 - f c 2 max. 0 - f c 2 max. 1 typ. 1 typ. 1 typ. 1 typ. amplitude accuracy 0 - f c 0.2 db max. 0 - 0.8 f c 0.2 db max. 0 - 0.8 f c 0.2 db max. 0 - 0.8 f c 0.2 db max. (theoretical) 0.1 db typ. 0.1 db typ. 0.1 db typ. 0.1 db typ. 0.8 f c - 1.0 f c 0.3 db max. 0.8 f c - 1.0 f c 0.3 db max. 0.8 f c - 1.0 f c 0.3 db max. 0.15 db typ. 0.15 db typ. 0.15 db typ. total harmonic < - 100 db typ. < - 100 db typ. < - 100 db typ. < - 100 db typ. distortion @ 1khz wide band noise 200 vrms typ. 200 vrms typ. 200 vrms typ. 200 vrms typ. (5 hz - 2 mhz) narrow band noise 50 vrms typ. 50 vrms typ. 50 vrms typ. 50 vrms typ. (5 hz - 100 khz) filter mounting assembly fma-02a fma-02a fma-02a fma-02a 8-bit programmable
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 8-bit programmable 828 series 8-pole high-pass filters model 828h8b 828h8e 828h8ex 828h8ey product specifications transfer function 8-pole 8-pole, 6 zero 8-pole, 6 zero 8-pole, 6 zero butterworth elliptic elliptic elliptic size 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 2.0?x 2.0?x 0.5 range f c, f r 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz 1.0 hz to 102.4 khz theoretical transfer appendix a appendix a appendix a appendix a characteristics page 29 page 37 page 36 page 38 passband ripple 0.0 db 0.035 db - 0.05 db - 0.05 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 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 0 0.5 db to 120 khz power bandwidth 120 khz 120 khz 120 khz 120 khz small signal (-6 db) 1 mhz (-6 db) 1 mhz (-6 db) 1 mhz (-6 db) 1 mhz bandwidth stopband attenuation rate 48 db/octave 80 db 80 db 100 db cutoff frequency f c 2% max. f r 2% max. f r 2% max. f r 2% max. stability 0.01% /? 0.01% /? 0.01% /? 0.01% /? amplitude -3 db -0.035 db -0.05db -0.05 db phase -360 -323.5 -414 -419 filter attenuation 80 db 0.31 f c 80 db 0.56 f r 80 db 0.64 f r 100 db 0.50 f r (theoretical) 60.0 db 0.42 f c 60.0 db 0.60 f r 60.0 db 0.69 f r 80.0 db 0.55 f r 3.01 db 1.00 f c 3.01 db 0.88 f r 3.01 db 0.95 f r 3.01 db 0.94 f r 0.00 db 2.00 f c 0.03 db 1.00 f r 0.03 db 1.00 f r 0.03 db 1.00 f r 0.00 db 2.00 f r 0.00 db 2.00 f r 0.00 db 2.00 f r phase match 1 f c - 100 khz 3 max. f r - 1.25 f r 4 max. f r - 1.25 f r 4 max. f r - 1.25 f r 4 max. 1.5 typ. 2 typ. 2 typ. 2 typ. 1.25 f r -100 khz 2 max. 1.25f r -100 khz 2 max. 1.25 f r -100 khz 3 max. 1 typ. 1 typ. 1.5 typ. amplitude accuracy f c -1.25 f c 0.3 db max. f r -1.25 f r 0.3 db max. f r -1.25 f r 0.5 db max. f r -1.25 f r 0.5 db max. (theoretical) 0.15 db typ. 0.15 db typ. 0.25 db typ. 0.25 db typ. 1.25 f c -100 khz 0.2 db max. 1.25 f r -100 khz 0.2 db max. 1.25 f r -100 khz 0.2 db max. 1.25 f r -100 khz 0.2 db max. 0.1 db typ. 0.1 db typ. 0.1 db typ. 0.1 db typ. total harmonic < - 100 db typ. < - 88 db typ. < - 88 db typ. < - 88 db typ. distortion @ 1khz wide band noise 400 vrms typ. 400 vrms typ. 500 vrms typ. 500 vrms typ. (5 hz - 2 mhz) narrow band noise 100 vrms typ. 100 vrms typ. 150 vrms typ. 150 vrms typ. (5 hz - 100 khz) filter mounting assembly fma-02a fma-02a fma-02a fma-02a 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. 5
specification (25c and vs 15 vdc) 828 series pin-out and package data ordering information 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 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-00828-00 20 k ? (cermet) os +vs -vs do not connect if trim is not required. analog input characteristics 1 impedance 10 k ? min. voltage range 10 vpeak max. safe voltage vs analog output characteristics impedance (closed loop) 1 1 ? typ. 10 ? max. linear operating range 10v maximum current 2 2 ma offset voltage 3 2 2 mv typ. 20 mv max. offset temp. coeff. 50 v/c power supply ( v s ) rated voltage 15 vdc operating range 12 to 18 vdc maximum safe voltage 18 vdc quiescent current 8 pole 25 ma typ. 40 ma max. temperature operating -2 0 to +70c storage -25 to +85c 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. dc offset adjustment 828l8e-3 e.g., model tuning minimum number range (hz) step(hz) case 2 1.0 to 256 1.0 g-3 3 10 to 2560 10 g-3 4 100 to 25.6k 100 g-3 5 200 to 51.2k 200 g-3 6 400 to 102.4k 400 g-3 model number transfer function b - butterworth l - bessel d60 - constant delay (-60 db) d80 - constant delay (-80 db) d10 - constant delay (-100 db) e - elliptic 1.77 (-80 db) ex- elliptic 1.56 (-80db) ey - elliptic 2.00 (-100 db) filter type l - low pass h - high pass ordering information side view +vs out -vs d d d d gnd d d d d in 2.00 bottom view 0.15 min. 0.025 dia. os 4 5 3 2 1 0 6 7 4 g-3 0.5 2.00 all dimensions are in inches all case dimensions 0.02" grid dimensions 0.1" x 0.1" filter mounting assembly-see fma-02a 6 pin-out & package data
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 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 and 0.0 v minimum to 4.0 v maximum for a "0" (low) level. applying a voltage between 4.0 and 11.0 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. 1 product handling procedure programmable filter modules power sequence & esd
8-p ole bessel appendix a lo w-p ass 4 25 locust st., haverhill, massachusetts 01830 t el:800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqdev .com w eb address: http://www .freqdev .com fax on demand: 978/521-5178 nor maliz ed time (1/f sec) step response (v/v) step response 0 1 2 3 4 5 -0.2 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 nor maliz ed time (1/f sec) dela y (sec) dela y (nor maliz ed) 0.1 1.0 2 3 4 5 6 7 8 9 0.0 0.5 1.0 1.5 0.15 nor maliz ed f requency(f/fc) amp (db) frequenc y response 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 (sec) theoretical t ransf er characteristics 1 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. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz f/fc (hz) amp (db) phase (deg) dela y -79.2 -89.8 -99.0 -107 -114 -33.4 -38.3 -43.1 -51.8 -66.8 -12.1 -13.7 -18.1 -23.1 -28.3 -6.10 -7.08 -8.16 -9.36 -10.7 -2.71 -3.01 -3.67 -4.40 -5.20 -1.06 -1.45 -1.91 -2.16 -2.42 0.00 -0.029 -0.117 -0.264 -0.470 -0.737 -610 -626 -638 -647 -655 -489 -509 -526 -552 -587 -345 -362 -402 -436 -465 -255 -273 -291 -309 -327 -173 -182 -200 -219 -237 -109 -128 -146 -155 -164 0.00 -18.2 -36.4 -54.7 -72.9 -91.1 .052 .038 .029 .023 .018 .241 .201 .170 .126 .077 .482 .468 .417 .352 .291 .505 .504 .502 .498 .492 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506
lo w-p ass 8-p ole appendix a butterw or th 9 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 nor maliz ed f requency(f/fc) -100 -80 -60 -40 -20 0 amp (db) 0.1 1.0 2 3 4 5 6 7 8 9 nor maliz ed time (1/f sec) 0.0 1.0 2.0 dela y (sec) 1.5 0.15 0 1 2 3 4 5 nor maliz ed time (1/f sec) -0.0 0.2 0.4 0.6 0.8 1.0 1.2 step response (v/v) frequenc y response dela y (nor maliz ed) step response (sec) theoretical t ransf er characteristics 1 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. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz f/fc (hz) amp (db) phase (deg) dela y -125 -135 -144 -153 -160 -76.3 -81.9 -87.1 -96.3 -112 -44.6 -48.2 -56.3 -63.7 -70.3 -23.4 -28.2 -32.7 -36.9 -40.8 -1.58 -3.01 -7.48 -12.9 -18.2 -671 -678 -683 -687 -691 -621 -629 -635 -646 -661 -560 -568 -586 -600 -611 -494 -511 -526 -539 -550 -0.001 -0.014 -0.121 -0.311 -0.738 0.00 0.00 0.00 0.00 0.00 0.00 -333 -360 -408 -445 -472 -185 -221 -261 -283 -307 0.00 -29.4 -59.0 -89.1 -120 -152 .023 .017 .013 .010 .008 .094 .080 .069 .052 .033 .253 .226 .174 .139 .113 .540 .448 .380 .328 .287 1.48 1.46 1.17 .873 .672 .956 1.04 1.19 1.29 1.40 .816 .819 .828 .843 .867 .903 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178
8-p ole , 6-zer o constant dela y appendix a lo w-p ass (60 db) 20 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 nor maliz ed f requency(f/fc) amp (db) nor maliz ed time (1/f sec) dela y (sec) nor maliz ed time (1/f sec) step response (v/v) frequenc y response dela y (nor maliz ed) step response 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 -0.2 0.1 1.0 2 3 4 5 6 7 8 9 0.0 0.5 1.0 1.5 0.15 1. normalized group delay: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual delay = normalized delay actual corner frequency (fc) in hz 1.40 1.60 1.80 2.00 2.25 0.90 0.95 1.00 1.10 1.20 0.50 0.60 0.70 0.80 0.85 0.00 0.10 0.20 0.30 0.40 (sec) theoretical transfer characteristics 1 f/fc (hz) amp (db) phase (deg) delay 6.50 7.00 8.00 9.00 10.0 5.00 5.25 5.50 5.75 6.00 3.75 4.00 4.25 4.50 4.75 2.50 2.75 3.00 3.25 3.50 -63.3 -63.7 -64.7 -66.0 -67.3 -64.6 -63.9 -63.5 -63.3 -63.2 -74.7 -85.0 -72.0 -67.9 -65.8 -50.5 -78.0 -63.7 -63.5 -66.9 -10.3 -15.9 -22.4 -29.4 -39.0 -2.02 -2.48 -3.01 -4.29 -5.91 -0.161 -0.384 -0.745 -1.28 -1.62 0.00 0.005 0.012 0.005 -0.042 -295 -299 -307 -313 -318 -275 -279 -283 -286 -289 -425 -253 -259 -265 -270 -544 -561 -395 -407 -417 -386 -431 -467 -495 -523 -252 -265 -279 -307 -334 -140 -168 -196 -224 -238 0.00 -28.0 -55.9 -83.9 -112 .028 .024 .019 .015 .012 .048 .044 .040 .036 .033 .088 .077 .068 .060 .054 .212 .171 .142 .119 .102 .675 .558 .443 .351 .268 .776 .775 .773 .766 .749 .776 .776 .776 .776 .776 .776 .776 .776 .776 .776
8-p ole , 6-zer o constant dela y appendix a lo w-p ass (80 db) 21 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 nor maliz ed f requency(f/fc) amp (db) nor maliz ed time (1/f sec) dela y (sec) nor maliz ed time (1/f sec) step response (v/v) frequenc y response dela y (nor maliz ed) step response 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 0.1 1.0 2 3 4 5 6 7 8 9 0.0 0.5 1.0 1.5 0.15 0 1 2 3 4 5 -0.2 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 1. normalized group delay: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual delay = normalized delay actual corner frequency (fc) in hz 1.40 1.60 1.80 2.00 2.25 0.90 0.95 1.00 1.10 1.20 0.50 0.60 0.70 0.80 0.85 0.00 0.10 0.20 0.30 0.40 (sec) theoretical transfer characteristics 1 f/fc (hz) amp (db) phase (deg) delay 6.50 7.00 8.00 9.00 10.0 5.00 5.25 5.50 5.75 6.00 3.75 4.00 4.25 4.50 4.75 2.50 2.75 3.00 3.25 3.50 -86.6 -85.1 -84.1 -84.3 -84.9 -92.8 -104 -101 -93.3 -89.9 -98.3 -86.3 -84.1 -85.1 -87.9 -43.4 -50.3 -57.6 -62.5 -75.4 -11.3 -17.1 -23.2 -29.1 -36.3 -1.89 -2.41 -3.01 -4.50 -6.39 0.034 -0.157 -0.510 -1.07 -1.44 0.00 0.017 0.058 0.099 0.105 -300 -305 -312 -317 -321 -462 -466 -289 -293 -295 -616 -442 -448 -454 -458 -561 -576 -589 -599 -608 -417 -459 -492 -517 -542 -276 -291 -306 -336 -365 -153 -184 -215 -245 -261 0.00 -30.7 -61.3 -92.0 -123 .026 .022 .017 .013 .011 .044 .040 .036 .033 .030 .079 .069 .061 .054 .049 .189 .153 .127 .107 .092 .656 .512 .396 .312 .239 .849 .846 .841 .821 .783 .852 .852 .852 .851 .850 .852 .852 .852 .852 .852
8-p ole , 6-zer o constant dela y appendix a lo w-p ass (100 db) 22 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 1. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . nor maliz ed f requency(f/fc) amp (db) nor maliz ed time (1/f sec) dela y (sec) nor maliz ed time (1/f sec) step response (v/v) actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz frequenc y response dela y (nor maliz ed) step response 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 -0.2 0.1 1.0 2 3 4 5 6 7 8 9 0.0 0.5 1.0 1.5 0.15 .007 .005 .004 .003 .003 .025 .022 .017 .013 .011 .054 .043 .036 .030 .028 .186 .151 .125 .090 .068 .650 .504 .389 .306 .235 .861 .857 .851 .828 .785 .865 .865 .865 .864 .863 .865 .865 .865 .865 .865 0.00 -31.1 -62.3 -93.4 -125 -156 -187 -218 -249 -265 -280 -296 -311 -341 -370 -422 -464 -496 -520 -544 -563 -578 -591 -610 -624 -635 -643 -651 -476 -478 -481 -486 -312 -318 -322 -328 -333 -336 -339 -341 -105 -106 -107 -108 -109 -106 -110 -122 -109 -106 -81.3 -93.4 -142 -105 -105 -40.5 -46.1 -51.4 -61.5 -71.2 -11.2 -16.8 -22.5 -28.0 -34.5 -1.89 -2.41 -3.01 -4.50 -6.38 0.010 -0.182 -0.532 -1.09 -1.45 0.00 0.015 0.051 0.085 0.085 12.0 14.0 16.0 18.0 20.0 6.50 7.00 8.00 9.00 10.0 4.50 5.00 5.50 6.00 6.20 2.50 2.75 3.00 3.50 4.00 1.40 1.60 1.80 2.00 2.25 0.90 0.95 1.00 1.10 1.20 0.50 0.60 0.70 0.80 0.85 0.00 0.10 0.20 0.30 0.40 (sec) theoretical transfer characteristics 1 f/fc (hz) amp (db) phase (deg) delay 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -120 -100 -80 -60 -40 -20 0
8-p ole , 6-zer o elliptic, 1.56 lo w-p ass frequenc y response appendix a 23 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 amp (db) nor maliz ed time (1/f sec) dela y (sec) nor maliz ed time (1/f sec) step response (v/v) dela y (nor maliz ed) step response nor maliz ed f requency(f/fc) 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 0.1 1.0 2 3 4 5 6 7 8 9 0.0 2.0 4.0 1.5 0.15 0.8 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 1. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz (sec) theoretical t ransf er characteristics 1 f/fc (hz) amp (db) phase (deg) dela y 4.00 5.00 6.00 7.00 2.40 2.60 2.80 3.00 3.50 1.85 1.90 1.95 2.00 2.20 1.50 1.60 1.70 1.75 1.80 1.00 1.10 1.20 1.30 1.40 0.75 0.80 0.85 0.90 0.95 0.50 0.55 0.60 0.65 0.70 8.00 9.00 10.0 0.00 0.10 0.20 0.30 0.40 -90.11 -91.82 -93.41 -84.04 -84.76 -86.45 -88.31 -88.65 -99.78 -99.97 -90.20 -85.09 -95.94 -89.31 -86.44 -84.96 -84.54 -69.11 -89.09 -85.32 -89.95 -103.5 -0.050 -10.48 -25.96 -39.45 -52.87 -0.049 -0.026 -0.001 -0.024 -0.045 -0.018 -0.003 -0.002 -0.019 -0.042 0.00 -0.001 -0.013 -0.040 -0.049 -165 -167 -168 -150 -156 -160 -163 -307 -311 -135 -139 -145 -288 -290 -292 -295 -302 -624 -453 -459 -463 -465 -414 -531 -576 -598 -614 -255 -279 -305 -335 -369 -156 -174 -192 -212 -233 0.00 -29.7 -59.8 -90.5 -122 0.005 0.004 0.003 0.022 0.014 0.009 0.007 0.069 0.057 0.048 0.041 0.029 0.158 0.126 0.117 0.110 0.087 0.265 0.211 0.174 0.156 0.147 3.062 2.043 0.814 0.493 0.348 1.264 1.388 1.557 1.767 2.111 0.972 1.016 1.064 1.116 1.178 0.823 0.829 0.844 0.865 0.904
8-p ole , 6-zer o elliptic, 1.77 appendix a lo w-p ass 24 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 nor maliz ed f requency(f/fc) amp (db) nor maliz ed time (1/f sec) dela y (sec) nor maliz ed time (1/f sec) step response (v/v) frequenc y response dela y (nor maliz ed) step response 0.1 1.0 2 3 4 5 6 7 8 9 0.0 2.0 4.0 1.5 0.15 0.8 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 1. normalized group delay: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual delay = normalized delay actual corner frequency (fc) in hz (sec) theoretical transfer characteristics 1 f/fc (hz) amp (db) phase (deg) delay 4.00 5.00 6.00 7.00 2.40 2.60 2.80 3.00 3.50 1.85 1.90 1.95 2.00 2.20 1.50 1.60 1.70 1.75 1.80 1.00 1.10 1.20 1.30 1.40 0.75 0.80 0.85 0.90 0.95 0.50 0.55 0.60 0.65 0.70 8.00 9.00 10.0 0.00 0.10 0.20 0.30 0.40 -86.2 -87.8 -89.3 -83.1 -82.1 -83.1 -84.6 -82.0 -83.5 -88.2 -99.9 -87.2 -83.6 -82.0 -83.7 -87.8 -85.8 -40.1 -51.5 -65.2 -75.0 -113.0 -0.035 -1.76 -8.28 -18.4 -29.3 -0.015 -0.041 -0.046 -0.016 -0.025 0.007 0.022 0.033 0.031 0.014 0.00 -0.004 -0.014 -0.024 -0.020 -160 -163 -164 -140 -148 -154 -157 -289 -295 -301 -305 -134 -440 -444 -447 -450 -280 -578 -594 -606 -611 -616 -323 -392 -467 -522 -558 -213 -232 -251 -272 -296 -133 -148 -163 -179 -196 0.00 -25.7 -51.6 -77.9 -105 0.007 0.005 0.004 0.030 0.018 0.013 0.009 0.099 0.081 0.067 0.057 0.040 0.217 0.198 0.182 0.168 0.126 0.517 0.381 0.296 0.265 0.239 1.65 2.14 1.86 1.19 0.753 0.989 1.04 1.12 1.23 1.40 0.811 0.840 0.872 0.908 0.946 0.713 0.716 0.724 0.740 0.767
8-p ole , 6-zer o elliptic, 2.00 lo w-p ass frequenc y response appendix a 25 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 amp (db) nor maliz ed time (1/f sec) dela y (sec) nor maliz ed time (1/f sec) step response (v/v) dela y (nor maliz ed) step response 0.1 1.0 2 3 4 5 6 7 8 9 0.0 2.0 4.0 1.5 0.15 0.8 nor maliz ed f requency(f/fc) 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -120 -100 -80 -60 -40 -20 0 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 1. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz (sec) theoretical t ransf er characteristics 1 f/fc (hz) amp (db) phase (deg) dela y 4.00 5.00 6.00 7.00 2.40 2.60 2.80 3.00 3.50 1.85 1.90 1.95 2.00 2.20 1.50 1.60 1.70 1.75 1.80 1.00 1.10 1.20 1.30 1.40 0.75 0.80 0.85 0.90 0.95 0.50 0.55 0.60 0.65 0.70 8.00 9.00 10.0 0.00 0.10 0.20 0.30 0.40 -107.3 -108.6 -110.0 -111.5 -105.4 -105.1 -106.0 -121.3 -106.5 -105.0 -106.4 -123.6 -81.93 -87.78 -95.04 -106.6 -106.0 -50.35 -58.90 -67.54 -72.04 -76.79 -0.046 -7.910 -21.06 -31.96 -41.51 -0.040 -0.014 -0.001 -0.031 -0.036 -0.001 0.000 -0.007 -0.027 -0.045 0.00 -0.001 -0.015 -0.040 -0.042 -165 -167 -168 -149 -156 -160 -163 -307 -311 -315 -318 -325 -647 -650 -652 -654 -481 -623 -632 -639 -642 -645 -419 -525 -573 -597 -612 -268 -291 -317 -346 -378 -166 -185 -204 -225 -245 0.00 -31.9 -64.2 -97.0 -131 0.005 0.004 0.003 0.022 0.014 0.010 0.007 0.070 0.058 0.049 0.042 0.030 0.138 0.128 0.119 0.111 0.087 0.271 0.216 0.177 0.162 0.149 2.681 2.127 0.856 0.509 0.357 1.269 1.377 1.513 1.677 1.960 1.020 1.057 1.099 1.140 1.193 0.885 0.891 0.903 0.922 0.958
high-p ass 8-p ole appendix a butterw or th 29 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 nor maliz ed f requency(f/fc) -100 -80 -60 -40 -20 0 amp (db) frequenc y response (sec) theoretical t ransf er characteristics 1 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 1. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz f/fc (hz) amp (db) phase (deg) dela y 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5.15 -3.01 -0.229 -0.020 -0.002 59.0 49.0 42.1 36.8 32.7 29.4 -35.5 -24.8 -15.6 -11.6 -8.06 -160 -112 -83.7 -63.7 -48.2 386 360 275 226 194 170 152 120 99.2 74.0 535 499 459 437 413 691 661 631 600 568 0.033 0.023 0.017 0.013 0.010 0.008 0.287 0.226 0.139 0.094 0.052 1.48 1.46 0.873 0.540 0.380 .956 1.04 1.19 1.29 1.40 0.819 0.828 0.843 0.867 0.903 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178
8-p ole , 6-zer o elliptic, 1.56 high-p ass frequenc y response appendix a 36 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 amp (db) nor maliz ed f requency(f/fc) 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 1. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz (sec) theoretical t ransf er characteristics 1 f/fc (hz) amp (db) phase (deg) dela y 9.00 10.0 4.00 5.00 6.00 7.00 8.00 1.80 1.90 2.00 2.50 3.00 1.30 1.40 1.50 1.60 1.70 0.90 0.95 1.00 1.10 1.20 0.55 0.60 0.70 0.80 0.85 0.10 0.20 0.30 0.40 0.50 0.00 0.00 -0.03 -0.01 -0.01 0.00 0.00 0.00 -0.01 -0.02 -0.05 -0.05 -0.04 -0.05 -0.03 -0.01 0.00 -12.3 -3.08 -0.05 -0.03 -0.01 -114 -84.1 -57.0 -32.8 -22.6 -93.4 -84.8 -86.0 -92.6 -85.0 33.0 29.7 75.1 59.8 49.7 42.5 37.2 176 165 156 122 101 264 239 219 202 188 538 483 414 341 296 287 458 617 589 569 168 156 143 310 295 0.010 0.008 0.053 0.034 0.023 0.017 0.013 0.315 0.275 0.243 0.145 0.097 0.773 0.612 0.505 0.426 0.364 2.198 3.993 3.062 1.498 1.039 0.472 0.515 0.652 0.962 1.325 0.334 0.344 0.363 0.392 0.439
8-p ole , 6-zer o elliptic, 1.77 appendix a high-p ass 37 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 nor maliz ed f requency(f/fc) amp (db) frequenc y response 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -100 -80 -60 -40 -20 0 1. normalized group delay: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual delay = normalized delay actual corner frequency (fc) in hz (sec) theoretical transfer characteristics 1 f/fc (hz) amp (db) phase (deg) delay 9.00 10.0 4.00 5.00 6.00 7.00 8.00 1.80 1.90 2.00 2.50 3.00 1.30 1.40 1.50 1.60 1.70 0.90 0.95 1.00 1.10 1.20 0.55 0.60 0.70 0.80 0.85 0.10 0.20 0.30 0.40 0.50 -0.01 0.00 -0.02 -0.01 -0.01 -0.01 -0.01 0.02 0.01 0.01 -0.02 -0.02 -0.03 0.01 0.03 0.03 0.03 -2.21 -0.51 -0.03 -0.01 -0.05 -90.0 -60.2 -32.4 -13.1 -6.28 -89.3 -82.1 -90.6 -82.4 -87.8 28.6 25.7 64.7 51.6 42.9 36.8 32.1 150 141 133 105 86.9 221 201 185 172 160 401 358 324 277 225 437 603 563 498 451 164 148 131 292 450 0.009 0.007 0.046 0.029 0.020 0.015 0.011 0.260 0.229 0.203 0.123 0.083 0.596 0.486 0.409 0.347 0.299 2.66 2.15 1.64 1.04 0.757 0.761 0.890 1.37 2.35 2.77 0.440 0.459 0.495 0.559 0.671
8-p ole , 6-zer o elliptic, 2.00 high-p ass frequenc y response appendix a 38 25 locust st., ha v erhill, massachusetts 01830 t el :800/252-7074, 978/374-0761 f ax:978/521-1839 e-mail: sales@freqde v .com w eb address: http://www .freqde v .com f ax on demand: 978/521-5178 amp (db) nor maliz ed f requency(f/fc) 0.1 1.0 10.0 2 3 4 5 6 7 8 2 3 4 5 6 7 -120 -100 -80 -60 -40 -20 0 1. normaliz ed gr oup dela y: t h e a b o v e d e l a y d a t a i s n o r m a l i z e d t o a c o r n e r f r e q u e n c y o f 1 . 0 h z . t h e a c t u a l d e l a y i s t h e n o r m a l i z e d d e l a y d i v i d e d b y t h e a c t u a l c o r n e r f r e q u e n c y ( f c ) . actual dela y = nor maliz ed dela y actual cor ner f requency (fc) in hz (sec) theoretical t ransf er characteristics 1 f/fc (hz) amp (db) phase (deg) dela y 9.00 10.0 4.00 5.00 6.00 7.00 8.00 1.80 1.90 2.00 2.50 3.00 1.30 1.40 1.50 1.60 1.70 0.90 0.95 1.00 1.10 1.20 0.55 0.60 0.70 0.80 0.85 0.10 0.20 0.30 0.40 0.50 -0.002 -0.001 -0.028 -0.015 -0.008 -0.005 -0.003 0.000 -0.003 -0.010 -0.042 -0.045 -0.032 -0.046 -0.034 -0.016 -0.004 -9.46 -2.16 -0.046 -0.038 -0.001 -78.6 -64.6 -44.1 -26.7 -18.2 -110 -105 -114 -110 -107 35.5 31.9 80.6 64.2 53.4 45.7 40.0 187 176 166 131 108 277 252 231 214 200 533 478 419 352 308 646 637 615 586 565 168 156 323 309 654 0.011 0.009 0.057 0.036 0.025 0.018 0.014 0.328 0.288 0.255 0.153 0.103 0.773 0.618 0.514 0.436 0.376 2.315 3.604 2.681 1.416 1.018 0.480 0.524 0.669 1.001 1.401 0.338 0.348 0.367 0.397 0.445

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