? 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 30.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v6 at65-0233 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: 2.0 db steps to 30 db ? low dc power consumption ? integral ttl driver ? 50 ohm impedance ? temperature stability: 0.18 db from -55c to +85c typ. ? soic-16 package description m/a-com?s at65-0233 is a gaas fet 4-bit digital attenuator with a 2.0 db minimum step size and a 30 db total attenuation range. this device is in a soic- 16 plastic surface mount package. the at65-0233 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 at65-0233 bulk packaging AT65-0233TR 1000 piece reel at65-0233-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 1. nc = no connection
? 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 30.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v6 at65-0233 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 test conditions frequency units min typ max insertion loss ? dc - 0.5 ghz dc - 2.0 ghz dc - 3.0 ghz db db db ? ? ? 1.7 2.3 2.6 2.0 2.7 3.1 attenuation accuracy any bit or combination of bits dc - 3.0 ghz db (.4 + 8% of attenuation) (.4 + 8% of attenuation) (.4 + 8% of attenuation) vswr full range dc - 3.0 ghz ratio ? ? 1.7:1 trise, tfall ton, toff transients 10% to 90% 50% cntl to 90%/10% rf in-band 10% to 90% 50% cntl to 90%/10% rf in-band ns ns mv ? ? ? 10 30 35 50 150 ? 1 db compression input power input power 0.05 ghz 0.5 - 3.0 ghz dbm dbm ? ? +20 +28 ? ? input ip 3 two-tone inputs up to +5 dbm 0.05 ghz 0.5 - 3.0 ghz dbm dbm ? ? +40 +50 ? ? input ip 2 two-tone inputs up to +5 dbm 0.05 ghz 0.5 - 3.0 ghz dbm dbm ? ? +45 +68 ? ? v cc v ee ? ? ? ? v v 4.5 -8.0 5.0 -5.0 5.5 -4.75 v il v ih low-level input voltage high-level input voltage ? ? v v 0.0 2.0 ? ? 0.8 5.0 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 applied prior to power supply.
? 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 30.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v6 at65-0233 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. attenuation accuracy, 2 db attenuation accuracy, 4 db attenuation accuracy, 8 db typical performance curves typical insertion loss (db) 0 1 2 3 00.511.522.53 frequency (ghz) loss (db) -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0 0 .5 1 1.5 2 2.5 3 frequency (ghz) deviation from nom. atten. (db) -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0 0 .5 1 1.5 2 2.5 3 frequency (ghz) deviation from nom. atten. (db) -0.4 -0.2 0 0.2 0.4 00.51 1.522.53 frequency (ghz) deviation from nom. atten. (db) 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 electricity. proper esd control techniques should be used when handling these devices. truth table (digital attenuator) c1 c2 c3 c4 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1 1 1 1 attenuation loss, reference 2.0 db 4.0 db 8.0 db 16.0 db 30.0 db 0 = ttl low; 1 = ttl high
? 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 30.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v6 at65-0233 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. attenuation accuracy, 16 db attenuation accuracy, 30 db -0.8 -0.4 0 0.4 0.8 0 0.5 1 1.5 2 2.5 3 frequency (ghz) deviation from nom. atten. (db) -2.4 -2 -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 00.511.522.53 frequency (ghz) deviation from nom. atten. (db) typical rf1 vswr typical rf2 vswr 1 1. 1 1. 2 1. 3 1. 4 00.511.522.53 fre qu e n cy (g h z ) vswr insertion loss 16 db 30 db 2, 4, & 8 db 1 1. 1 1. 2 1. 3 1. 4 00.511.522.53 fre qu e n cy (g h z ) vswr insertion loss 16 db 30 db 2, 4, & 8 db typical performance curves
? 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. 5 digital attenuator 30.0 db, 4-bit, ttl driver, dc-3.0 ghz rev. v6 at65-0233 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. soic-16 ? ? reference application note m 538 for lead-free solder reflow recommendations.
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