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描述
DAC5652
SLAS452A–MARCH2005–REVISEDFEBRUARY2006
双,10-bit275mspsdigital-至-analogconverter
•
CellularBaseTransceiverStationTransmit
•
10-bitdualtransmitdigital-至-相似物
频道
转换器(dac)
–cdma:w-cdma,cdma2000,是-95
•
275MSPSUpdateRate
–tdma:gsm,是-136,边缘/uwc-136
•
singlesupply:3.0vto3.6v
•
medical/testinstrumentation
•
highspurious-freedynamicrange(sfdr):
•
arbitrarywaveformgenerators(arb)
80dBcat5MHz
•
directdigitalsynthesis(dds)
•
highthird-ordertwo-toneintermodulation
•
cablemodemterminationsystem(cmts)
(imd3):78dbcat15.1mhzand16.1mhz
•
IndependentorSingleResistorGainControl
•
DualorInterleavedData
•
在-chip1.2-vreference
•
lowpower:290mw
•
电源-downmode:9mw
•
包装:48-pinthin-quadflatpack(tqfp)
thedac5652isamonolithic,双-频道,10-位,高-speeddacwithon-chipvoltagereference.
operatingwithupdateratesofupto275msps,thedac5652offersexceptionaldynamicperformance,
tight-增益,andoffsetmatchingcharacteristicsthatmakeitsuitableineitheri/qbasebandordirectif
communicationapplications.
eachdachasahigh-阻抗,差别的-currentoutput,suitableforsingle-endedordifferential
相似物-outputconfigurations.externalresistorsallowscalingofthefull-scaleoutputcurrentforeachdac
separatelyortogether,typicallybetween2maand20ma.anaccurateon-chipvoltagereferenceis
温度-compensatedanddeliversastable1.2-vreferencevoltage.optionally,anexternalreferencemay
beused.
thedac5652hastwo,10-位,parallelinputportswithseparateclocksanddatalatches.forflexibility,这
dac5652alsosupportsmultiplexeddataforeachdacononeportwhenoperatingintheinterleavedmode.
thedac5652hasbeenspecificallydesignedforadifferentialtransformer-coupledoutputwitha50-
Ω
doubly-terminatedload.fora20-mafull-scaleoutputcurrent,botha4:1impedanceratio(resultinginanoutput
powerof4dbm)and1:1impedanceratiotransformer(–2dbmoutputpower)aresupported.
thedac5652isavailableina48-pintqfppackage.pincompatibilitybetweenfamilymembersprovides10-位
(dac5652),12-位(dac5662),and14-位(dac5672)决议.此外,thedac5652ispincompatibleto
thedac2900andad9763dualdacs.thedeviceischaracterizedforoperationovertheindustrialtemperature
rangeof–40°cto85°c.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005–2006,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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