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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 100 khz fixed frequency D68 & dp68 series 32 pin dip 8-pole filters description the D68 and dp68 series of small 8-pole fixed- frequency, precision active filters provide high performance linear active filtering in a compact 32- pin dip package, with a broad range of corner frequencies and a choice of transfer functions. individual D68 filters can serve in low-pass or high- pass applications (dp68, low-pass only) or be combined to create custom band-pass or band- reject 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 (dp68, 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 to 16 bit resolution. 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 D68l8b & dp68l8b 8-pole butterworth . . . . . . . . . . . . . . . . .2 D68l8e & dp68l8e 8-pole, 6 zero elliptic, 1.77 (-80db) . . . .2 D68l8ex & dp68l8ex 8-pole, 6 zero elliptic, 1.56 (-80db) . . . .2 D68l8ey & dp68l8ey 8-pole, 6 zero elliptic, 2.00 (-100db) . . .2 D68l8l & dp68l8l 8-pole bessel. . . . . . . . . . . . . . . . . . . . .3 D68l8d60 & dp68l8d60 8-pole constant delay (-60 db) . . . . . . . .3 D68l8d & dp68l8d 8-pole constant delay (-80 db) . . . . . . . .3 D68l8d10 & dp68l8d10 8-pole constant delay (-100 db) . . . . . . .3 available high-pass models: . . . . . . . . . . . . . . . . D68h8b 8-pole butterworth . . . . . . . . . . . . . . . . .4 D68h8e 8-pole, 6 zero elliptic, 1.77 (-80db) . . . .4 D68h8ex 8-pole, 6 zero elliptic, 1.56 (-80db) . . . .4 D68h8ey 8-pole, 6 zero elliptic, 2.00 (-100db) . . . .4 general specifications: . . . . . . . . . . . . . . . . pin-out/package data & ordering information . . . . . .5
fixed frequency D68 & dp68 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 2 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 D68l8b & dp68l8b D68l8e & dp68l8e D68l8ex & dp68l8ex D68l8ey & dp68l8ey product specifications transfer function 8-pole, butterworth 8-pole, 6 zero, 8-pole, 6 zero, 8-pole, 6 zero, elliptic elliptic elliptic 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 f c, f r D68 1 hz to 100 khz 1 hz to 100 khz 1 hz to 100 khz 1 hz to 100 khz dp68 1 hz to 5 khz 1 hz to 5 khz 1 hz to 5 khz 1 hz to 5 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 1% max. f r 1% max. f r 1% max. f r 2% max. stability 0.01% /? 0.01% /? 0.01% /? 0.01% /? amplitude -3 db -0.035 db -0.05 db -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 0.2 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. 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 r - 1.0 f r 0.3 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 distortion @ 1 khz D68 <-100 db typ. <-88 db typ. <-88 db typ. <-88 db typ. dp68 <-80 db typ. <-80 db typ. <-80 db typ. <-80 db typ. wide band noise 200 m vrms typ. 200 m vrms typ. 250 m vrms typ. 250 m vrms typ. (5 hz - 2 mhz) narrow band noise 50 m vrms typ. 50 m vrms typ. 75 m vrms typ. 75 m vrms typ. (20 hz - 100 khz) filter mounting assembly fma-01a fma-01a fma-01a fma-01a
fixed frequency D68 & dp68 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 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 D68l8l & dp68l8l D68l8d60 & dp68l8d60 D68l8d & dp68l8d D68l8d10 & dp68l8d10 product specifications transfer function 8-pole, bessel 8-pole, 6 zero, 8-pole, 6 zero, 8-pole, 6 zero, constant delay constant delay constant delay 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 f c D68 1 hz to 100 khz 1 hz to 100 khz 1 hz to 100 khz 1 hz to 100 khz dp68 1 hz to 5 khz 1 hz to 5 khz 1 hz to 5 khz 1 hz to 5 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 1% max. f c 1% max. f c 1% max. f c 2% max. stability 0.01% /? 0.01% /? 0.01% /? 0.01% /? amplitude -3db -3db -3db -3db 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. ? .15 db typ. ? .15 db typ. 0.15 db typ. total harmonic distortion @ 1 khz D68 <-100 db typ. <-100 db typ. <-100 db typ. <-100 db typ. dp68 <-80 db typ. <-80 db typ. <-80 db typ. <-80 db typ. wide band noise 200 m vrms typ. 200 m vrms typ. 200 m vrms typ. 200 m vrms typ. (5 hz - 2 mhz) narrow band noise 50 m vrms typ. 50 m vrms typ. 50 m vrms typ. 50 m vrms typ. (20 hz - 100 khz) filter mounting assembly fma-01a fma-01a fma-01a fma-01a 3
fixed frequency D68 & dp68 series 8-pole high-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 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 D68h8b D68h8e D68h8ex D68h8ey product specifications transfer function 8-pole, butterworth 8-pole, 6 zero, 8-pole, 6 zero, 8-pole, 6 zero, elliptic elliptic elliptic 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 f c, f r D68 1 hz to 100 khz 1 hz to 100 khz 1 hz to 100 khz 1 hz to 100 khz dp68 not available not available not available not available 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 stopband attenuation rate 48 db/octave 80 db 80 db 100 db power bandwidth 120 khz 120 khz 120 khz 120 khz small signal bandwidth (-6db) 1 mhz (-6db) 1 mhz (-6db) 1 mhz (-6db) 1 mhz cutoff frequency f c 1% max. f r 1% max. f r 1% max. f r 2% max. stability 0.01% /? 0.01% /? 0.01% /? 0.01% /? amplitude -3 db -0.035 db` -0.05 db -0.05 db phase -360 -323.5 -414 -419 filter attenuation 80.0 db 0.31 f c 80.0 db 0.56 f r 80.0 db 0.64 f r 100.0 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 0.05 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. 0 - 1.25 f r 4 max. 0 - 1.25 f r 4 max. 0 - 1.25 f r 4 max. 1.5 typ. 2 typ. 2 typ. 2 typ. 1.25 f r -100 khz 2 max. 1.25 f r -100 khz 2 max. 1.25 f r -100 khz 3 max. 1 typ. 1 typ. 1.5 typ. amplitude accuracy 1.0 - 1.25 f c 0.3 db max. 1.00 - 1.25 f r 0.3 db max. 1.00 - 1.25 f r 0.5 db max. 1.00 - 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. ? .1 db typ. ? .1 db typ. ? .1 db typ. total harmonic distortion @ 1 khz D68 <-88 db typ. <-88 db typ. <-88 db typ. <-88 db typ. wide band noise 400 m vrms 400 m vrms typ. 500 m vrms typ. 500 m vrms typ. (5 hz - 2 mhz) narrow band noise 100 m vrms typ. 100 m vrms typ. 150 m vrms typ. 150 m vrms typ. (20 hz - 100 khz) filter mounting assembly fma-01a fma-01a fma-01a fma-01a 4
specification (25c and vs 15 vdc) D68 & dp68 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-00D68-02 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 filter type l - low pass h - high pass analog input characteristics 1 impedance 10 k w min. voltage range 10 vpeak max. safe voltage vs analog output characteristics impedance(closed loop) 1 w typ. 10 w max. linear operating range 10 v maximum current 2 2 ma offset voltage 3 2 mv typ. 20 mv max. offset temp. coeff. 50 m v / c power supply (v) rated voltage 15 vdc operating range 5 to 18 vdc maximum safe voltage 18 vdc quiescent current D68 25 ma typ. 40 ma max. quiescent current dp68 7 ma typ. 10 ma max. temperature operating - 0 to + 70 c storage - 25 to + 85 c ordering information side view 0.80 0.025 dia. all dimensions are in inches all case dimensions 0.01" bottom view +vs out -vs in gnd 0.80 0.70 0.10 0.00 0.00 0.15 0.45 0.55 1.55 1.65 1.80 os 4 0.15 (min) front view 0.30 1.80 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 with out offset pin connected. 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. D68l8b-849 hz - 3 db corner frequency 5 e.g., 849 hz 2.50 khz 33.3 khz transfer function b - butterworth l - bessel d - constant delay (-80 db) d60 - constant delay (-60 db) d10 - constant delay (-100 db) e - elliptic 1.77 (-80 db) ex - elliptic 1.56 (-80 db) ey - elliptic 2.00 (-100 db) power level d ? standard power dp ? low power dc offset adjustment vs - vs 20 k w (cermet) do not connect if trim is not required. os 5 filter mounting assembly-see fma-01a
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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