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 100 khz fixed frequency d78 & dp78 series 32 pin dip 8-pole filters available low-pass models: . . . . . . . . . . . . . . . . d78l8b 8-pole butterworth . . . . . . . . . . . . . . .2 DP78L8B 8-pole butterworth (low power) . . . . .2 d78l8l 8-pole bessel . . . . . . . . . . . . . . . . . . .2 dp78l8l 8-pole bessel (low power) . . . . . . . .2 available high-pass models: d78h8b 8-pole butterworth . . . . . . . . . . . . . . .2 general specifications: pin-out/package data & ordering information . . . .3 description the d78 and dp78 series of low-power, fixed- frequency, linear active filters are high performance, 8-pole filters in a compact package. these butterworth and bessel low-pass and butterworth high-pass filters (d78 only) combine linear active filter design with the space savings of a 32-pin dual in-line package (dip). each model comes factory tuned to a user-specified corner frequency between 1 hz and 100 khz (dp78, 1 hz to 5khz). these fully self-contained units require no external components or adjustments and operate with dynamic input voltage range from non-critical 5v to 18v power supplies. applications anti-alias filtering vibration & shock analysis automatic test equipment aerospace, navigation and sonar communication systems medical electronics sound and vibration testing noise elimination process control features/benefits: low cost solution for low frequency signal conditioning compact dip design minimizes board space requirements plug-in ready-to-use, reducing engineering design and manufacturing time factory tuned, no external clocks or adjustments needed saving time and labor of other discrete assembly solutions low harmonic distortion and wide signal-to-noise ratio to 12 bit resolution 1
fixed frequency d78 & dp78 series 8-pole low-pass and high-pass filters 1784 chessie lane, ottawa, il 61350 ? tel: 800/252-7074, 815/434-7800 ? fax: 815/434-81769 e-mail: sales@freqdev.com web address: http://www.freqdev.com 2 model d78l8b & DP78L8B d78l8l & dp78l8l model d78h8b product specifications low-pass low-pass high-pass transfer function 8-pole, butterworth 8-pole, bessel transfer function 8-pole, butterworth, size size d78 1.00 hz to 1.00 khz 1.8?x 0.8?x 0.5 1.8?x 0.8?x 0.5 d78 1.00 hz to 1.00 khz 1.8?x 0.8?x 0.5 d78 1.01 khz to 100 khz 1.8?x 0.8?x 0.3 1.8?x 0.8?x 0.3 d78 1.01 khz to 100 khz 1.8?x 0.8?x 0.3 dp78 1.00 hz to 5.00 khz 1.8?x 0.8?x 0.5 1.8?x 0.8?x 0.5 range f c range f c d78 1 hz to 100 khz 1 hz to 100 khz d78 1 hz to 100 khz dp78 1 hz to 5 khz 1 hz to 5 khz theoretical transfer appendix a appendix a theoretical transfer appendix a characteristics page 9 page 4 characteristics page 29 passband ripple 0.0 db 0.0 db passband ripple 0.0 db (theoretical) (theoretical) dc voltage gain 0 0.1 db typ. 0 0.1 db typ. voltage gain 0 0.1 db to 100 khz (non-inverting) (non-inverting) stopband stopband attenuation rate 48 db/octave 48 db/octave attenuation rate 48 db/octave power bandwidth 120 khz small signal bandwidth (-6 db) 1 mhz cutoff frequency f c 2% max. f c 2% max. cutoff frequency f c 2% max. stability 0.03% /? 0.03% /? stability 0.03% /? amplitude -3 db -3 db amplitude -3 db phase -360 -182 phase -360 filter attenuation 0.12 db 0.80 f c 1.91 db 0.80 f c filter attenuation 80 db .31 f c (theoretical) 3.01 db 1.00 f c 3.01 db 1.00 f c (theoretical) 60 db .42 f c 60.0 db 2.37 f c 60.0 db 4.52 f c 3.01 db 1.00 f c 80.0 db 3.16 f c 80.0 db 6.07 f c 0.00 db 2.0 f c total harmonic total harmonic distortion @ 1 khz distortion @ 1 khz d78 <-70 db <-70 db d78 <-70 db dp78 <-70 db <-70 db wide band noise 200 m vrms typ. 200 m vrms typ. wide band noise 400 m vrms typ. (5 hz - 2 mhz) (5 hz - 2 mhz) narrow band noise 50 m vrms typ. 50 m vrms typ. narrow band noise 100 m vrms typ. (20 hz - 100 khz) (20 hz - 100 khz) filter mounting filter mounting assembly fma-01a fma-01a assembly fma-01a
specification (25c and vs 15 vdc) d78 & dp78 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-00d78-00 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 1 w linear operating range 10 v maximum current 2 d78 10 ma dp78 5 ma offset voltage 20 mv max. 1 3 mv typ. offset temp. coeff. 20 m v / c typ. power supply (v) rated voltage 15 vdc operating range 5 to 18 vdc maximum safe voltage 18 vdc quiescent current d78 12 ma max. 8 ma typ. quiescent current dp78 3.0 ma max. 1.5 ma typ. temperature operating - 0 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. ordering information 3. 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 hz to 100 khz. d78l8b-849 hz - 3 db corner frequency 3 e.g., 849 hz 2.50 khz 33.3 khz transfer function b - butterworth l - bessel power level d ? standard power dp ? low power 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 3 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 0.15 (min) front view 0.30 1.80 0.50 filter mounting assembly-see fma-01a
8-p ole bessel appendix a lo w-p ass 4 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 normalized 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: 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) 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 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
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 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
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