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 applications anti-alias filtering vibration analysis industrial and process control noise reduction signal reduction test systems features/benefits: the 10 volt input range with an overall gain of 1 provides an excellent match to both the transducer output and the data acquisition board input 5baf modules allow for partitioning between sys- tem segments providing a means to minimize ground loops factory tuned, no external clocks or adjustments needed 5b plug-in compatible provides quick and easy in- stallation broad range of corner frequencies to meet a wide range of applications description the 5baf series are differential-input 6-pole butterworth or bessel low-pass anti-alias filters that are pin-out and package compatible with industry- standard 5b series signal conditioning modules. each filter comes factory tuned to a user-specified corner frequency from 1 hz to 50 khz. these filters are ideally suited to sharply limit a/d converter bandwidth to eliminate aliasing higher frequency input signals and noise. to serve real-world applications, all 5baf series filters are configured with a differential input having a common mode rejection ratio of 74 db (min.) at 1 khz. a self contained dc-to-dc converter enables the 5baf filters to operate from a non-critical +5 10% volt power source key in many systems since +5v logic power is readily available. 6-pole 5baf series differential low-pass filters 1 available low-pass models: . . . . . . . . . . . . . . page 5baf-lpbe6 6-pole bessel . . . . . . . . . . . . . . . . .2 5baf-lpbu6 6-pole butterworth . . . . . . . . . . . . . .2 general specifications: ordering information . . . . . . . . . . . . . . . . . . . . . . . .3 pin-out/package data . . . . . . . . . . . . . . . . . . . . . . . .3
6-pole 5baf series differential 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 model 5baf-lpbe6 5baf-lpbu6 product specifications transfer function 6-pole, 6-pole, bessel butterworth size std. 5b std. 5b range f c 1 hz to 50 khz 1 hz to 50 khz theoretical transfer appendix a appendix a characteristics page 3 page 8 impendance 1.0 m ? min. 1.0 m ? min. differential gain 1 0.03% 1 0.03% com. mode voltage range 20 v 20 v com. mode rejection 74 db min. @ 1 khz 74 db min. @ 1 khz voltage range 10 v peak 10 v peak maximum safe voltage 40 v 40 v (power on or off) accuracy 2% max. 2% max. stopband attenuation rate 36 db/octave 36 db/octave filter attenuation 1.89 db 0.80 f c 0.29 db 0.80 f c (theoretical) 3.01 db 1.00 f c 3.01 db 1.00 f c 60.0 db 5.41 f c 60.0 db 3.16 f c 80.0 db 7.99 f c 80.0 db 4.64 f c narrow band noise 75 m vrms 75 m vrms 2
specification 5baf 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-005baf-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 3 analog input characteristics 1 see transfer function specifications. analog output characteristics 1,2 impedance (closed loop) <1 w typ. 10 w max. linear operating range 10v pk maximum current 2.0ma offset voltage 3mv typ. offset temp. coeff. 100 m v/c gain drift 30 ppm/c output load see note 3 power supply (vs) rated voltage + 5v 0.5 vdc quiescent current 100 ma typ. (1 khz to 20 khz) 125 ma max. quiescent current 120 ma typ. (20 khz to 50 khz) 135 ma max. temperature operating -25 to + 85c storage -40 to + 85c notes: 1. input and output signal voltage referenced to i/o com. 2. output is short circuit protected to common. do not connect to +5v or power com. 3. output can drive a series 1.5 k w resistor and 0.0022 mf capacitor without slew rate limiting with a 10 v square wave input. 2.250 (57.2) 0.590 (15.0) 2.250 (57.2) 0.100 (2.5) 0.150 (3.8) 0.250 (6.3) 0.375 (9.5) 1.175 (29.8) 1.605 (41.9) 0.590 (15.0) socket for 0.038 pin insert for 3mm screw 0.525 (12.9) 0.150 (3.8) 0.350 (8.6) 0.075 (1.8) typ 2.250 (57.2) 0.275 (6.7) 0.375 (9.2) 0.475 (11.6) 0.375 (9.5) 5baf - lpbu6 6 pole butterworth filter 20.0 khz made in the usa 5baf filter series frequency devices frequency devices dimensions in inches (mm) pin designations bottom view na 22 vout 20 na 18 power com 16 inhi 6 na 4 na 2 23 na 21 na 19 i/o com 17 + 5v 5 inlo 3na 1na package data 5baf-lpbe6-10.7 khz transfer function bu - butterworth be - bessel - 3 db corner frequency 4 e.g., 10.7 khz 1.00 hz 50.0 khz ordering information 4. how to specify corner frequencies: corner frequencies are specified by attaching a three digit frequency designator to the basic model number. corner frequencies can range from 1 hz to 50 khz. 0.0022 m f 1.5 k w
lo w-p ass 6-p ole appendix a bessel 3 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 -0.0 -0.2 0.2 0.4 0.6 0.8 1.0 1.2 (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 -65.2 -73.2 -80.1 -86.2 -91.6 -30.7 -34.5 -38.1 -44.7 -55.9 -12.6 -14.2 -18.3 -22.6 -26.7 -6.23 -7.29 -8.46 -9.74 -11.1 -465 -476 -484 -490 -495 -385 -398 -408 -426 -449 -287 -300 -328 -351 -369 -216 -232 -246 -261 -275 .036 .026 .020 .015 .013 .156 .131 .111 .083 .052 .357 .335 .279 .228 187 .422 .416 .401 .393 .376 -2.70 -3.01 -3.68 -4.44 -5.29 -1.05 -1.44 -1.89 -2.15 -2.42 0.00 -0.029 -0.116 -0.261 -0.465 -0.728 -147 -155 -170 -186 -201 -92.9 -108 -124 -132 -139 0.00 -15.5 -31.0 -46.5 -62.0 -77.4 .430 .430 .429 .428 .426 .430 .430 .430 .430 .430 .430 .430 .430 .430 .430 .430
lo w-p ass 6-p ole appendix a butterw or th 8 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 1.0 2.0 1.5 0.15 0 1 2 3 4 5 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 (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 -93.4 -101 -108 -115 -120 -57.3 -61.4 -65.3 -72.2 -83.9 -33.5 -36.1 -42.3 -47.8 -52.7 -503 -508 -512 -515 -518 -465 -471 -476 -484 -496 -419 -425 -439 -450 -458 .017 .012 .0097 .0076 .0062 .071 .060 .052 .039 .025 .193 .171 .132 .105 .086 -17.6 -21.2 -24.5 -27.7 -30.6 -1.88 -3.01 -6.17 -9.96 -13.9 -0.009 -0.060 -0.289 -0.578 -1.080 0.00 0.00 0.00 0.00 0.00 -0.001 -368 -382 -393 -403 -412 -252 -270 -304 -331 -352 -140 -167 -198 -215 -233 0.00 -22.2 -44.5 -67.2 -90.4 -115 .417 .345 .291 .251 .219 1.03 1.00 .845 .660 .518 .731 .803 .911 .970 1.02 .615 .617 .624 .637 .656 .685
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