digital attenuator 15.5 db, 5-bit, ttl driver, dc-2.0 ghz at-283-pin m/acominc.anditsaffiliatesreservetherightt omakechangestothe product(s)orinformationcontainedhereinwithout notice.m/acommakes nowarranty,representationorguaranteeregarding thesuitabilityofits productsforanyparticularpurpose,nordoesm/ac omassumeanyliability whatsoeverarisingoutoftheuseorapplicationof anyproduct(s)or information. ? 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 visitwww.macom.com foradditionaldatasheetsandproductinformation. v6 1 rohs compliant features ? attenuation:0.5dbstepsto15.5db ? temperaturestability:0.18dbfromC55c to+85ctypical ? lowdcpowerconsumption ? hermeticsurfacemountpackage ? integralttldriver ? 50 nominalimpedance ? leadfreecr12package ? 260creflowcompatible description m/acoms at283pin is a gaas fet 5bit digital attenuatorwitha0.5dbminimumstepsizeand15.5 db total attenuation. this attenuator and integral ttl driver is in a hermetically sealed ceramic 16 lead surface mount package. the at283pin is ideallysuitedforusewhereaccuracy,fastswitchi ng, very low power consumption and low intermodula tion products are required. typical applications i n clude dynamic range setting in precision receiver circuitsandothergain/levelingcontrolcircuits. envi ronmental screening is available. contact the fac toryforinformation. ordering information part number package at283pin bulkpackaging maad0072290001tr 1000piecereel maad0072290001tb sampletestboard note:referenceapplicationnotem513forreelsiz e information. note:diequantityvaries. functional schematic pin configuration pin no. function pin no. function 1 rf1 9 c5 2 gnd 10 +5v 3 gnd 11 5v 4 gnd 12 c4 5 gnd 13 c3 6 gnd 14 c2 7 gnd 15 c1 8 rf2 16 gnd *restrictionsonhazardoussubstances,europeanun iondirective2002/95/ec. themetalbottomofthecasemustbeconnectedtor fanddc ground.
digital attenuator 15.5 db, 5-bit, ttl driver, dc-2.0 ghz at-283-pin m/acominc.anditsaffiliatesreservetherightt omakechangestothe product(s)orinformationcontainedhereinwithout notice.m/acommakes nowarranty,representationorguaranteeregarding thesuitabilityofits productsforanyparticularpurpose,nordoesm/ac omassumeanyliability whatsoeverarisingoutoftheuseorapplicationof anyproduct(s)or information. ? 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 visitwww.macom.com foradditionaldatasheetsandproductinformation. v6 2 rohs compliant electrical specifications: t a = 25c 1 parameter test conditions units min typ max reference insertionloss dc0.5ghz dc1.0ghz dc2.0ghz db db db 2.2 2.5 2.9 attenuationaccuracy 2 anysinglebit dc2.0ghz anycombinationofbits dc2.0ghz vswr dc1.0ghz dc2.0ghz 1.6:1 1.7:1 trise,tfall ton,toff transients 10%to90% 50%controlto90/10%rf inband(peakpeak) ns ns mv 10 27 22 1dbcompression 3 inputpower 0.05ghz inputpower 0.52.0ghz dbm dbm +20 +28 inputip 3 3 fortwotoneinputpower 0.05ghz upto+5dbm 0.52.0ghz dbm dbm +40 +47 inputip 2 3 fortwotoneinputpower 0.05ghz upto+5dbm 0.52.0ghz dbm dbm +53 +68 v cc v ee v v 4.5 8.0 5.0 5.5 5.0 i cc v cc =4.5to5.5v vctl=0to0.8v,orv cc 2.1vtov cc ma 5.0 (0.25+3%ofattenuationsettingindb)db (0.25+3%ofattenuationsettingindb)db or0.4db,whicheverisgreater i ee v ee =5.0toC8.0v ma 1.0 vctl vctl logic0(ttl) logic1(ttl) v v 0.0 2.0 0.8 5.0 inputleakagecurrent(low) inputleakagecurrent(high) 0to0.8v 2.0to5.0v a a 1.0 1.0 1. allspecificationsapplywhenoperatedwithbias voltagesof+5.0vforv cc andC5.0vto8.0vforv ee ,and50impedanceatallports unlessotherwisespecified. 2. thisattenuatorisguaranteedmonotonic. 3. v ee =5.0vforthetypicalnumbersgiven.
digital attenuator 15.5 db, 5-bit, ttl driver, dc-2.0 ghz at-283-pin m/acominc.anditsaffiliatesreservetherightt omakechangestothe product(s)orinformationcontainedhereinwithout notice.m/acommakes nowarranty,representationorguaranteeregarding thesuitabilityofits productsforanyparticularpurpose,nordoesm/ac omassumeanyliability whatsoeverarisingoutoftheuseorapplicationof anyproduct(s)or information. ? 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 visitwww.macom.com foradditionaldatasheetsandproductinformation. v6 3 rohs compliant recommended pcb configuration absolute maximum ratings 4,5 parameter absolute maximum maximuminputpower 0.05ghz 0.52.0ghz +27dbm +34dbm supplyvoltages v cc v ee +5.5v 8.5v controlvoltage 6 0.5vtov cc +0.5v operatingtemperature 55cto+125c storagetemperature 65cto+150c 4. exceedinganyoneorcombinationoftheselimits maycause permanentdamagetothisdevice. 5. m/acomdoesnotrecommendsustainedoperationn ear thesesurvivabilitylimits. 6. standardcmosttlinterface,latchupwilloccur iflogic signalisappliedpriortopowersupply. 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) control inputs c1 c2 c3 c4 c5 attenuation 0 0 0 0 0 reference 1 0 0 0 0 0.5db 0 1 0 0 0 1db 0 0 1 0 0 2db 0 0 0 1 0 4db 0 0 0 0 1 8db 1 1 1 1 1 15.5db attenuation accuracy vs. frequency 0.5, 1, 2 db bit s typical performance curves reference insertion loss vs. frequency @ temperatu re 0.0 1.0 2.0 3.0 4.0 5.0 0 500 1000 1500 2000 frequency (mhz) insertion loss (db) + 2 5 c - 5 5 c + 8 5 c 0.5 0.3 0.0 0.3 0.5 0 500 1000 1500 2000 frequency (mhz) deviation from nom. atten. (db) 0=ttllow;1=ttlhigh
digital attenuator 15.5 db, 5-bit, ttl driver, dc-2.0 ghz at-283-pin m/acominc.anditsaffiliatesreservetherightt omakechangestothe product(s)orinformationcontainedhereinwithout notice.m/acommakes nowarranty,representationorguaranteeregarding thesuitabilityofits productsforanyparticularpurpose,nordoesm/ac omassumeanyliability whatsoeverarisingoutoftheuseorapplicationof anyproduct(s)or information. ? 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 visitwww.macom.com foradditionaldatasheetsandproductinformation. v6 4 rohs compliant vswr vs. frequency reference loss, 0.5, 1, 2 db bit s vswr vs. frequency 4, 8 db bits and full attenuatio n typical performance curves attenuation accuracy vs. frequency 4, 8 db bits and full attenuation 0.5 0.0 0.5 1.0 0 500 1000 1500 2000 frequency (mhz) deviation from nom. atten. (db) full atte n. 1.0 1.2 1.4 1.6 1.8 2.0 0 500 1000 1500 2000 frequency (mhz) vswr 1.0 1.2 1.4 1.6 1.8 2.0 0 500 1000 1500 2000 frequency (mhz) vsw r lead-free, cr-12 ceramic package ? ? referenceapplicationnotem538forleadfreesolde rreflow recommendations.
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