Texas Instruments ADS5546 Handleiding

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FEATURESAPPLICATIONS

DESCRIPTION

ADS5546

SLWS183D–NOVEMBER2005–REVISEDAPRIL2007

14-BIT,190MSPSADCWITHDDRLVDS/CMOSOUTPUTS

•WirelessCommunicationsInfrastructure

•MaximumSampleRate:190MSPS

•SoftwareDefinedRadio

•14-BitResolution

•PowerAmplifierLinearization

•NoMissingCodes

•802.16d/e

•TotalPowerDissipation1.1W

•TestandMeasurementInstrumentation

•InternalSampleandHold

•HighDefinitionVideo

•73.2-dBFSSNRat70-MHzIF

•MedicalImaging

•87-dBcSFDRat70-MHzIF,0dBgain

•RadarSystems

•DoubleDataRate(DDR)LVDSandParallel

CMOSOutputOptions

•ProgrammableGainupto6dBforSNR/SFDR

ADS5546isahighperformance14-bit,190-MSPS

Trade-OffatHighIF

A/Dconverter.Itoffersstate-of-theartfunctionality

•ReducedPowerModesatLowerSample

andperformanceusingadvancedtechniquesto

Rates

minimizeboardspace.Usinganinternalsampleand

holdandlowjitterclockbuffer,theADCsupports

•Supportsinputclockamplitudedownto

bothhighSNRandhighSFDRathighinput

400mV

PP

frequencies.Itfeaturesprogrammablegainoptions

•ClockDutyCycleStabilizer

thatcanbeusedtoimproveSFDRperformanceat

•NoExternalReferenceDecouplingRequired

lowerfull-scaleanaloginputranges.

•InternalandExternalReferenceSupport

Inacompact48-pinQFN,thedeviceoffersfully

•ProgrammableOutputClockpositiontoease

differentialLVDSDDR(DoubleDataRate)interface

whileparallelCMOSoutputscanalsobeselected.

datacapture

Flexibleoutputclockpositionprogrammabilityis

•3.3-VAnalogandDigitalSupply

availabletoeasecaptureandtrade-offsetupforhold

•48-QFNPackage(7mm×7mm)

times.Atlowersamplingrates,theADCcanbe

operatedatscaleddownpowerwithnolossin

performance.ADS5546includesaninternal

reference,whileeliminatingthetraditionalreference

pinsandassociatedexternaldecoupling.Thedevice

alsosupportsanexternalreferencemode.

Thedeviceisspecifiedovertheindustrial

temperaturerange(-40°Cto85°C).

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2005–2007,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties