digital attenuator, 32 db, 2 - bit, ttl driver, dc - 2.0 ghz at - 273 cr - 11 v 7.00 electrical specifications : t a = 25 c parameter test conditions frequency units min typ max insertion loss ? dc - 0.5 ghz dc - 1.0 ghz dc - 2.0 ghz db db db ? ? ? ? ? ? 1.6 1.7 1.9 attenuation accuracy c1 bit full attenuation (32 db) full attenuation (32 db) full attenuation (32 db) dc - 2.0 ghz dc - 0.5 ghz dc - 1.0 ghz dc - 2.0 ghz 3% of attenuation setting in db 3% of attenuation setting in db 3% of attenuation setting in db, - 1 db 3% of attenuation setting in db, - 3 db vswr full range dc - 2.0 ghz ratio ? ? 1.6:1 trise, tfall 10% to 90% ? ns ? 7 ? ton, toff 50% cntl to 90% / 10% rf ? ns ? 28 ? transients in - band (peak - to - peak) ? mv ? 30 ? 1 db compression input power input power 0.05 ghz 0.5 - 2.0 ghz dbm dbm ? ? +20 +28 ? ? input ip3 two - tone inputs up to +5 dbm 0.05 ghz 0.5 - 2.0 ghz dbm dbm ? ? +38 +48 ? ? input ip2 two - tone inputs up to +5 dbm 0.05 ghz 0.5 - 2.0 ghz dbm dbm ? ? +44 +68 ? ? vcc - vee ? ? ? ? v v 4.5 - 8.0 5.0 ? 5.5 - 5.0 vctl vctl logic (0) ttl logic (1) ttl ? ? v v 0.0 2.0 ? ? 0.8 5.0 features n attenuation: 16.0 db steps to 32 db n low dc power consumption n hermetic surface mount package n integral ttl driver n 50 oh m impedance n temperature stability: 0.18 db from - 55c to +85c typ. n tape and reel packaging available description m/a - com's a t - 273 is a gaas fet digital attenuator with a 16.0 db minimum step size and a 32 db total attenuation range. this attenuator and integral ttl driver is in a hermetically sealed ceramic 16 - lead surface mount package. the at - 273 is ideally suited for use whe re accuracy, fast switching, very low power consumption and low intermodulation products are required. typical applications inc lude dynamic range setting in precision receiver circuits and other gain/leveling control circuits. environmental screening is available. contact the factory for information.
digital attenuator, 32 db, 2 - bit, ttl driver, dc - 2.0 ghz at - 273 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 7.00 2 pin configuration p in no. function pin no. function 1 c2 9 rf1 2 gnd 10 gnd 3 c1 11 gnd 4 gnd 12 gnd 5 gnd 13 vee 6 gnd 14 vcc 7 gnd 15 nc 8 rf2 16 nc absolute maximum ratings 1 1. operation of this device above any one of these parameters may cause permanent damage. parameter test conditions frequency units min typ max input leakage current (low) input leakage current (high) 0 to 0.8v 2.0 to 5.0v ? ? a a ? ? ? ? 1.0 1.0 icc vcc = 4.5 to 5.5v vctl = 0 to 0.8v, or vcc ? 2.1v to vcc ? ma ? ? 2.0 - iee vee = - 5.0 to - 8.0v ? ma ? ? - 1 electrical specifications : t a = 25 c parameter absolute maximum max. input power 0.05 ghz 0.5 - 2.0 ghz +27 dbm +34 dbm +vcc +5.5v - vee - 8.5v control voltage - 0.5 to vcc + 0.5v operating temperature - 55c to +125c storage temperature - 65c to +150c truth table c1 c2 attenuation 0 0 loss, reference 0 1 16.0 db 1 1 3 2 .0 db 0 = ttl low; 1 = ttl high ordering information part number package at - 273 bulk packaging at - 273tr tape and reel
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