? 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 digital attenuator 31.5 db, 6-bit, ttl driver, dc-2.0 ghz rev. v9 AT-107-PIN 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: 0.5 db steps to 31.5 db ? temperature stability: 0.18 db from ?55c to +85c typical ? low dc power consumption ? hermetic surface mount package ? integral ttl driver ? 50 ohm nominal impedance ? lead-free cr-13 package ? 260c reflow compatible ? rohs* compliant description m/a-com?s AT-107-PIN is a gaas fet 6-bit digital attenuator with a 0.5 db minimum step size and 31.5 db total attenuation. this attenuator and integral ttl driver is in a hermetically sealed ceramic 24- lead surface mount package. the AT-107-PIN is ideally suited for use where accuracy, fast switching, very low power consumption and low intermodula- tion products are required. typical applications in- clude dynamic range setting in precision receiver circuits and other gain/leveling control circuits. envi- ronmental screening is available. contact the fac- tory for information. ordering information part number package AT-107-PIN bulk packaging at-107-tb sample test board note: reference application note m513 for reel size information. functional schematic pin configuration pin no. function pin no. function 1 gnd 13 rf2 2 gnd 14 gnd 3 gnd 15 gnd 4 c16 16 gnd 5 c8 17 gnd 6 vee (-5v to -8v) 18 gnd 7 vcc (+5v) 19 gnd 8 c4 20 gnd 9 c2 21 gnd 10 c1 22 gnd 11 c0.5 23 gnd 12 gnd 24 rf1 * restrictions on hazardous substanc es, european union directive 2002/95/ec. the metal bottom of the case must be connected to rf and dc ground.
? 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 digital attenuator 31.5 db, 6-bit, ttl driver, dc-2.0 ghz rev. v9 AT-107-PIN 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 = -55c to +85c 1 parameter frequency units min typ max reference insertion loss dc - 0.5 ghz dc - 1.0 ghz dc - 2.0 ghz db db db ? ? ? ? ? ? 3.2 3.6 4.0 attenuation accuracy 2 dc - 1.0 ghz dc - 2.0 ghz dc - 1.0 ghz dc - 2.0 ghz vswr dc - 2.0 ghz ratio ? ? 1.8:1 trise, tfall ? ns ? 9 ? ton, toff ? ns ? 45 ? transients ? mv ? 40 ? 1 db compression 0.05 ghz 0.5 - 2.0 ghz dbm dbm ? ? +21 +29 ? ? input ip3 0.05 ghz 0.5 - 2.0 ghz dbm dbm ? ? +35 +48 ? ? input ip2 0.05 ghz 0.5 - 2.0 ghz dbm dbm ? ? +45 +79 ? ? (0.15 +3% of atten. setting in db) db (0.2 +3% of atten. setting in db) db (0.2 +3% of atten. setting in db) db or 0.4 db, whichever is greater (0.2 +3% of atten. setting in db) db or 0.4 db, whichever is greater test conditions ? any single bit any combination of bits ? 10% to 90% 50% control to 90/10% rf in-band (peak-peak) input power input power for two-tone input power up to +5 dbm for two-tone input power up to +5 dbm vcc ? ? v 4.5 5.0 5.5 vee ? ? v -8.0 ? -5.0 icc vcc = 4.5 to 5.5v vctl = 0 to 0.8v, or vcc ? 2.1v to vcc ? ma ? ? 6.0 iee vee = -5.0 to -8.0v ? ma ? ? 1.0 vctl vctl logic 0 (ttl) logic 1 (ttl) ? ? v v 0.0 2.0 ? ? 0.8 5.0 input leakage current (low) 0 to 0.8v ? a ? ? 1.0 input leakage current (high) 2.0 to 5.0v ? a ? ? 1.0 1. all specifications apply when operated with bi as voltages of +5v for vcc and ?5.0v for vee. 2. this attenuator is guaranteed monotonic.
? 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 digital attenuator 31.5 db, 6-bit, ttl driver, dc-2.0 ghz rev. v9 AT-107-PIN 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. recommended pcb configuration absolute maximum ratings 3,4 parameter absolute maximum max input power 0.05 ghz 0.5 - 2.0 ghz +27 dbm +34 dbm v cc -0.5v v cc +7.0v v ee -8.5v v ee +0.5v operating temperature -55c to +125c storage temperature -65c to +150c v cc - v ee -0.5v v cc - v ee 14.5v vin 5 -0.5v vin v cc + 0.5v 3. exceeding any one or combination of these limits may cause permanent damage to this device. 4. m/a-com does not recommend sustained operation near these survivability limits. 5. standard cmos ttl interface, latch-up will occur if logic signal is applied prior to power supply. 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) c6 c5 c4 c3 c2 c1 attenuation 0 0 0 0 0 0 reference 0 0 0 0 0 1 0.5 db 0 0 0 0 1 0 1 db 0 0 0 1 0 0 2 db 0 0 1 0 0 0 4 db 0 1 0 0 0 0 8 db 1 0 0 0 0 0 16 db 1 1 1 1 1 1 31.5 db control inputs 0 = ttl low; 1 = ttl high attenuation accuracy vs. frequency typical performance curves insertion loss vs. frequency 0.0 1. 0 2.0 3.0 4.0 5.0 0.0 0.5 1.0 1.5 2.0 fre qu e n cy (g h z ) insertion loss (db) +85c +25c -55c -0.60 -0.40 -0.20 0.00 0.20 0.40 0.60 0.0 0 .5 1.0 1.5 2.0 fre qu e n cy (g h z ) deviation from nominal atten (db) 1 db 2 db 4 db 0.5 db
? 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 digital attenuator 31.5 db, 6-bit, ttl driver, dc-2.0 ghz rev. v9 AT-107-PIN 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 rf2 vswr vs. frequency typical performance curves attenuation accuracy vs. frequency -0.80 -0.40 0.00 0.40 0.80 0.0 0.5 1.0 1.5 2 .0 fre qu e n cy (g h z ) deviation from nominal atten (db) 8 db 16 db 31.5 db 1 1. 2 1. 4 1. 6 1. 8 2 0.0 0.5 1.0 1.5 2.0 fre qu e n cy (g h z ) vswr 1 db 4 db 8 & 16 db ref loss & 0.5 db 1 1. 2 1. 4 1. 6 1. 8 2 0.0 0.5 1.0 1.5 2.0 frequency (ghz) vswr 1 & 2 db 4 db 8 db 16 db ref loss & 0.5 db ? reference application note m 538 for lead-free solder reflow recommendations. lead-free, cr-13 ceramic package ?
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