digital attenuator 15.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v4 maatcc0008 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 1 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. features ? attenuation: 1.0 db steps to 15 db ? low dc power consumption ? integral ttl driver ? 50 ohm impedance ? temperature stability: 0.18 db from ?40c to +85c typ. ? lead-free so-16 package ? 100% matte tin plating over copper ? halogen-free ?green? mold compound ? 260c reflow compatible ? rohs* compliant version of at65-0413 description m/a-com?s maatcc0008 is a gaas fet 4-bit digital attenuator with a 1.0 db minimum step size and a 15 db total attenuation range. this device is in a soic-16 plastic surface mount package. the maatcc0008 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. typical applications include dynamic range setting in precision receiver circuits and other gain/leveling control circuits. ordering information part number package maatcc0008 bulk packaging maatcc0008tr 1000 piece reel MAATCC0008-TB sample test board note: reference application note m513 for reel size information. schematic with off-chip components or functional block diagram pin configuration pin no. function pin no. function 1 gnd 9 c2 2 rf1 10 c1 3 gnd 11 gnd 4 nc 1 12 gnd 5 vee 13 nc 1 6 vcc 14 gnd 7 c4 15 rf2 8 c3 16 gnd * restrictions on hazardous substanc es, european union directive 2002/95/ec. 1. nc = no connection
digital attenuator 15.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v4 maatcc0008 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 2 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. electrical specifications: t a = 25c parameter frequency units min typ max insertion loss dc - 0.5 ghz dc - 2.0 ghz dc - 3.0 ghz db db db ? ? ? 1.3 1.7 1.9 1.6 2.1 2.4 attenuation accuracy dc - 3.0 ghz db (.25 + 3% of attenuation) or .55 db (.25 + 3% of attenuation) or .55 db (.25 + 3% of attenuation) or .55 db vswr dc - 3.0 ghz ratio ? ? 1.6:1 trise, tfall ton, toff transients 10% to 90% 50% cntl to 90%/10% rf in-band ns ns mv ? ? ? 10 30 35 50 150 ? 1 db compression 0.05 ghz 0.5 - 3.0 ghz dbm dbm ? ? +20 +28 ? ? input ip 3 0.05 ghz 0.5 - 3.0 ghz dbm dbm ? ? +40 +50 ? ? input ip 2 0.05 ghz 0.5 - 3.0 ghz dbm dbm ? ? +45 +68 ? ? vcc v ee ? ? v v 4.5 -8.0 5.0 -5.0 5.5 -4.75 v il v ih ? ? v v 0.0 2.0 ? ? 0.8 5.0 test conditions ? any bit or combination of bits full range 10% to 90% 50% cntl to 90%/10% rf in-band input power input power two-tone inputs up to +5 dbm two-tone inputs up to +5 dbm ? low-level input voltage high-level input voltage lin (input leakage current) vin = v cc or gnd ? ua -1.0 ? 1.0 icc (quiescent supply current) vcntrl = v cc or gnd ? ua ? 250 400 icc (additional supply current per ttl input pin) v cc = max, vcntrl = v cc - 2.1 v ? ma ? ? 1.0 i ee v ee min to max, vin = v il or v ih ? ma -1.0 -0.2 ? absolute maximum ratings 2,3 parameter absolute maximum max. input power 0.05 ghz 0.5 - 3.0 ghz +27 dbm +34 dbm v cc -0.5v v cc +7.0v v ee -8.5v v ee +0.5v v cc - v ee -0.5v v cc - v ee 14.5v vin 4 -0.5v vin v cc + 0.5v operating temperature -40oc to +85oc storage temperature -65oc to +125oc 2. exceeding any one or combination of these limits may cause permanent damage to this device. 3. m/a-com does not recommend sustained operation near these survivability limits. 4. standard cmos ttl interface, latch-up will occur if logic signal is applied prior to power supply. recommended pcb configuration
digital attenuator 15.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v4 maatcc0008 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 3 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. handling procedures please observe the following precautions to avoid damage: static sensitivity gallium arsenide integrated circuits are sensitive to electrostatic discharge (esd) and can be damaged by static electric ity. proper esd control techniques should be used when handling these devices. truth table (digital attenuator) c1 c2 c3 c4 attenuation 0 0 0 0 loss, reference 1 0 0 0 1.0 db 0 1 0 0 2.0 db 0 0 1 0 4.0 db 0 0 0 1 8.0 db 1 1 1 1 15.0 db 0 = ttl low; 1 = ttl high attenuation accuracy @ +25oc typical performance curves typical insertion loss (db) 0 0.5 1 1. 5 2 2.5 0 .0 0 .5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) loss (db) +25c - 40 c +85c -0.4 -0.2 0 0.2 0.4 0 .0 0 .5 1.0 1.5 2 .0 2.5 3.0 fre qu e n cy (g h z ) deviation from nom. attenuation (db) 15 d b 1d b 8db 2db 4db attenuation accuracy @ -40oc attenuation accuracy @ +85oc -0.4 -0.2 0 0.2 0.4 0 .0 0 .5 1.0 1.5 2 .0 2.5 3.0 fre qu e n cy (g h z ) deviation from nom. attenuation (db) 15 d b 1d b 8 d b 2db 4db -0.4 -0.2 0 0.2 0.4 0.0 0.5 1.0 1.5 2 .0 2 .5 3 .0 fre qu e n cy (g h z ) deviation from nom. attenuation (db) 15 d b 1d b 8 d b 2db 4db
digital attenuator 15.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v4 maatcc0008 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 4 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. rf1 vswr vs. frequency rf 2 vswr vs. frequency 1 1. 1 1. 2 1. 3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 fre qu e n cy (g h z ) vswr 2 & 4 db insertion loss 1 db 8 db 15 1 1. 1 1. 2 1. 3 1. 4 1. 5 0 .0 0.5 1.0 1.5 2 .0 2.5 3 .0 fre qu e n cy (g h z ) vswr 15 db insertion loss 1 db 2, 4 & 8 db lead-free, soic-16 ? ? reference application note m 538 for lead-free solder reflow recommendations. typical performance curves
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