digital attenuator, 31.0 db, 1 db lsb, 5 - bit, 800 - 2500 mhz maatss0002 v 2.00 features n 5 bits, 1 db steps n excellent accuracy n positive control (+3 to +5v) n small low cost qsop - 16 (ssop - 16) package descriptio n the m/a - com maatss0002 is a 1 db step gaas mmic digital attenuator with 31.0 db dynamic range in a low cost qsop - 16 (ssop - 16) package. it requires external dc blocking capacitors on the rf ports, positive supply voltage and five individual bit control voltages. it is particularly suited where high attenuation accuracy, low insertion loss and low intermodulation products are re quired. typical applications include base stations, wireless data, and wireless local loop gain level control circuits. the m aatss0002 is fabricated using m/a - com?s gaas 1.0 micron process. the process features full chip passivation for increased perf ormance and reliability. electrical specifications : t a = 25 c, z 0 = 50 w parameter conditions frequency units min. typ. max. insertion loss ? 0.8 - 1.5 ghz 1.5 - 2.0 ghz 2.0 - 2.5 ghz db db db ? ? ? 1.8 2.2 2.7 1.9 2.3 2.9 accuracy ? 0.8 - 1.5 ghz 1.5 - 2.0 ghz 2.0 - 2.5 ghz (0.3 db + 4% of attenuation) (0.3 db + 3% of attenuation) (0.4 db + 3% of attenuation) step change ? 0.8 - 1.5 ghz 1.5 - 2.0 ghz 2.0 - 2.5 ghz db db db 0.4 0.4 0.4 1.0 1.0 1.0 1.4 1.6 1.8 attenuation range ? 0.8 - 2.5 ghz db 30.0 31.0 32.2 vswr ? 0.8 - 2.5 ghz db ? ? 2.0:1 trise, tfall 10% to 90% rf, 90% to 10% rf ? s ? 2 ? ton, toff 50% control to 10% / 90% rf ? s ? 2 ? transients in band ? mv ? 120 ? p1db +3v +5v 0.8 - 2.5 ghz 0.8 - 2.5 ghz dbm dbm 15 18 ? ? ? ? ip3 +3v input power up to + 5 dbm +5v input power up to +5 dbm 0.8 - 2.5 ghz 0.8 - 2.5 ghz dbm dbm 34 43 ? ? ? ? control voltages vlow = 0.0 0.2v @ 20 a, 40 a max. vhigh = +3 0.2v or +5v 0.2v @ 20 a, 40 a max. vs = vhigh @ 200 a max functional schematic absolute maximum ratings 1 1. operation of this device above any one of these parameters may cause permanent damage. parameter absolute maximum max input power 0.8 - 2.5 ghz +34 dbm operating temperature - 40c to +85c storage temperature - 65c to +150c 1db 16db 2db vc5 vc4 vc3 vc2 vc1 rf in rf out
digital attenuator, 31.0 db, 1 db lsb, 5 - bit, 800 - 2500 mhz maatss0002 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 2 truth table control inputs vc5 vc4 vc3 vc2 vc1 attenuation (db) 1 1 1 1 1 reference 0 1 1 1 1 1 db 1 0 1 1 1 2 db 1 1 0 1 1 4 db 1 1 1 0 1 8 db 1 1 1 1 0 16 db 1 = vhigh = (vs 0.1) v, 0 = (0.0 0.1) v pin out qsop - 16 (ssop - 16) dimensions minimum nominal maximum a 0.053 0.064 0.069 a1 0.004 0.006 0.010 b 0.008 ? 0.012 c 0.007 ? 0.010 d 0.189 0.193 0.197 e 0.025 basic 0.025 basic 0.025 basic e 0.228 0.236 0.244 e1 0.150 0.154 0.157 l 0.016 0.025 0.050 0 ? 0.025 basic ? measurement (inches) yywwxxx pin 16 pin 1 macom xx-xxx e1 e d a b e a1 c l q at0002 1 4 5 6 7 8 9 10 11 13 14 15 16 10kohm 50 pf 50 pf 12 rf2 rf1 2 3 vs gnd gnd gnd gnd gnd gnd gnd gnd gnd vc1 vc2 vc3 vc4 vc5
digital attenuator, 31.0 db, 1 db lsb, 5 - bit, 800 - 2500 mhz maatss0002 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 3 typical performance curves insertion loss vs. frequency -3 -2.5 -2 -1.5 -1 -0.5 0 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 frequency (ghz) il (db) 25c -40c +85c vswr vs. frequency @ +25c 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 frequency (ghz) vswr (ratio) 0db 1db 2db vswr vs. frequency @ +25c 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 frequency (ghz) vswr (ratio) 16 db 8 db 4 db 31 db deviation from attenuation setting @ 0.8 ghz -1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 atten. settings deviation (db) 25c -40c +85c deviation from attenuation setting @ 1.5 ghz -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 atten. settings deviation (db) 25c -40c +85c deviation from attenuation setting @ 2.0 ghz -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 atten. settings deviation (db) 25c -40c +85c
digital attenuator, 31.0 db, 1 db lsb, 5 - bit, 800 - 2500 mhz maatss0002 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 4 typical performance curves deviation from attenuation setting @ 2.5 ghz -1.5 -1 -0.5 0 0.5 1 1.5 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 atten. settings deviation (db) 25c -40c +85c typical step size @ +25c typical step size @ +25c step size over temperature @ 0.8 ghz -1.3 -1.2 -1.1 -1 -0.9 -0.8 -0.7 -0.6 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 atten. settings step size (db) 25c -40c +85c step size over temperature @ 2.0 ghz step size over temperature @ 1.5 ghz -1.4 -1.3 -1.2 -1.1 -1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 atten. settings step size (db) 25c -40c +85c -1.7 -1.5 -1.3 -1.1 -0.9 -0.7 -0.5 -0.3 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 atten. settings step size (db) 25c -40c +85c 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 atten. setting step (atten i-atten i+1) (db) 0.8 ghz 2.0 ghz 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 atten. setting step (atten i - atten i+1) (db) 1.5ghz 2.5ghz
digital attenuator, 31.0 db, 1 db lsb, 5 - bit, 800 - 2500 mhz maatss0002 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 5 typical performance curves step size over temperature @ 2.5 ghz -2 -1.8 -1.6 -1.4 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 atten. settings step size (db) +25c -40c +85c ordering information part number package maatss0002 bulk packaging maatss0002tr tape and reel (1k reel) maatss0002 - tb units mounted on test board
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