? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macomtech.com for additi onal data sheets and prod uct 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 voltage variable absorptive attenuator 30 db, 0.5 - 2.0 ghz rev. v1 at-110-2 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. features ? single positive voltage control: 0 to +5 volts ? 30 db voltage variable attenuation ? 2 db linearity from bsl ? low dc power consumption ? temperature range: -40c to +85c ? soic-8 plastic package ? tape and reel packaging available ? fast switching speed description m/a-com?s at-110-2 is a gaas mmic voltage variable absorptive attenuator in a low-cost soic 8- lead surface mount plastic package. the at-110-2 has a faster switching speed than the at-108 or at-109. the at-110-2 is ideally suited for use where linear attenuation fine tuning and very low power consumption are required. typical applications include radio, cellular, gps equipment and automatic gain/level control circuits. the at-110-2 is fabricated with a monolithic gaas mmic using a mature 1-micron process. the process features full chip passivation for increased performance and reliability. functional schematic 2,3,4 pin configuration pin no. function pin no. function 1 ground 5 v c 2 ground 6 ground 3 rf port 7 rf port 4 v cc 8 ground 2. v cc = +5 vdc 0.5 vdc @ 300 a maximum. 3. v c = 0 vdc to +5 vdc @ 6 ma maximum. 4. external dc blocking capacitors are required on all rf ports. ordering information 1 part number package at-110-2 soic 8-lead plastic package AT-110-2TR forward tape and reel 1. reference application note m513 for reel size information. 8 7 6 5 1 2 3 4 absolute maximum ratings 5,6 parameter absolute maximum input power +21 dbm supply voltage v cc -1 v < v cc < +8 v control voltage v c -1 v < v c < v cc + 0.5 v operating temperature -40c to +85c storage temperature -65c to +150c 5. exceeding any one or combination of these limits may cause permanent damage to this device. 6. m/a-com does not recommend sustained operation near these survivability limits.
? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macomtech.com for additi onal data sheets and prod uct 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 voltage variable absorptive attenuator 30 db, 0.5 - 2.0 ghz rev. v1 at-110-2 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 7 : t a = 25c, z 0 = 50 parameter test conditions units min. typ. max. insertion loss 0.5 - 1.0 ghz 1.0 - 2.0 ghz db db ? ? 2.8 3.3 3.0 3.6 attenuation 1.0 ghz 1.0 - 2.0 ghz db db 37.5 25 ? ? ? ? flatness (peak to peak) 0.5 - 1.0 ghz 1.0 - 2.0 ghz db db ? ? 0.5 1.2 0.8 1.5 vswr ? ratio ? 2:1 ? trise, tfall 10% to 90% rf, 90% to 10% rf s ? 0.2 ? ton, toff 50% control to 90% rf, 50% control to 10% rf s ? 0.2 ? transients in-band mv ? 70 ? 7. the rf ports must be blocked outside of the package from ground or any other voltage. soic-8
? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macomtech.com for additi onal data sheets and prod uct 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 voltage variable absorptive attenuator 30 db, 0.5 - 2.0 ghz rev. v1 at-110-2 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. typical performance curves @ 25c attenuation vs. control voltage, f = 900, 1800 mhz insertion loss vs. frequency return loss vs. control voltage, f = 900 mhz ip3 vs. control voltage 1 db compression vs. control voltage, f = 900 mhz attenuation vs. temperature normalized to +25c , f = 900 mhz 0 1 2 3 4 0.5 1.0 1.5 2.0 frequency (ghz) -40 -30 -20 -10 0 0 1 2 3 4 5 1800 900 control voltage (v) -3 -2 -1 0 1 2 3 0 1 2 3 4 5 -40c +85c control voltage (v) 0 10 20 30 40 0 1 2 3 4 5 control voltage (v) 0 10 20 30 40 0 1 2 3 4 5 400 mhz 900 mhz control voltage (v) -40 -30 -20 -10 0 0 1 2 3 4 5 control voltage (v)
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