FA4230 precision supercomponents for critical applications FA4230 ultra miniature 400-750 mhz switched filter bank features ? sharp attentuation ? fast switching - 100 ns ? four contiguous bands ? high reliability ? mil-std-883 screened ? 0.65 cu in total volume ? 1.40? x 1.35 ?x 0.34 ? in size description the comstron model FA4230 is a switchable filter mod- ule containing four filters, with the capability of select- ing any one of the four filters with a 2 bit ttl control signal. the FA4230 offers a design having extremely high frequency selectivity, minimum switching time, and ultra miniaturized size. the FA4230 is screened to mil- std-883 procedures and operates over the temperature range of -55 c to +105 c absolute maximum ratings storage temperature.............................-65 c to +150 c operating temperature.........................-55 c to +105 c input r.f. power..........................................+25 dbm max. hermeticity...........................mil-std-883, method 1014 shock...........................mil-std-810, method 516,proc. i outline drawing 1.22" 0.09" 0.09" 0.34" 1.40" 1.35" c1 gnd j2 gnd +5v c2 gnd j1 gnd -5v fl1 fl2 fl3 fl4 s p 4 t s p 4 t rf in rf out hp driver decoder 2 bit ttl control input
FA4230 precision supercomponents for critical applications 35 south service road plainview, ny 11803 tel: 516-694-6700 fax: 516-694-2562 table 1: specifications characteristics typical limits attenuation -see graphs above - - switching speed 80 ns < 100 ns insertion loss (includes switches) 4 db < 7db d.c. currents +5 v, 80 ma -5 v, 20 ma +5v, < 100ma -5v, < 20 ma v.s.w.r. (input/ output) 1.35:1 < 1.5:1,(1db bw) isolation 60 db > 50db 300 400 500 600 700 800 20 0 -20 -40 -60 -80 a t t e n u a t i o n [ d b ] a t t e n u a t i o n [ d b ] a t t e n u a t i o n [ d b ] a t t e n u a t i o n [ d b ] 400 480 560 640 720 800 500 580 660 740 820 900 20 0 -20 -40 -60 -80 20 0 -20 -40 -60 -80 20 0 -20 -40 -60 -80 frequency(mhz) frequency (mhz) 400 480 560 640 720 800 frequency(mhz) frequency(mhz) filter no.1 filter no.2 filter no.4 filter no.3 attenuation attenuation limits attenuation attenuation limits attenuation attenuation limits attenuation attenuation limits
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