Anadigics AWT6241 TD-SCDMA手機線性功率放大方案

AnadigicsAWT6241TD-SCDMA手機線性功率放大方案Anadigics公司的AWT6241是HELP3TMUMTS/TD-SCDMA線性功率放大模塊,采用InGAPHBT技術(shù),單模式控制輸入,工作頻率在1880-1920MHz和2010-2025MHz.工作電壓從3.2V到4.2V,POUT=+27.5dBm的效率為28%,主要用在TD-SCDMA1.8/2.0頻段以及UMTS/WCDMAIMT2.1GHz的無線手機和數(shù)據(jù)設(shè)備.本文介紹AWT6241主要特性,方框圖和典型應(yīng)用電路.

AWT6241:HELP3TMUMTS/TD-SCDMALinearPowerAmplifierModule

TheAWT6241HELP3TMPAisanextgenerationproductforUMTShandsets.ThisPAincorporatesANADIGICS’HELP3TMtechnologytoprovidelowpowerconsumptionwithouttheneedforanexternalvoltageregulatororDC/DCConverter.TheAWT6241ismanufacturedonanadvancedInGaPHBTMMICtechnologyofferingstate-of-the-artreliability,temperaturestability,andruggedness.Therearetwooperatingmodesforoptimumefficiencyathighandmedium/lowpoweroutputlevelswithasinglemodeinput.Ashutdownmodewithlowleakagecurrentincreaseshandsettalkandstandby-time.Theself-contained3mmx3mmx1mmsurfacemountpackageincorporatesmatchingnetworksoptimizedforoutputpower,efficiency,andlinearityina50Ωsystem.

AWT6241主要特性:

?InGAPHBTTechnology

?Singlemodecontrolinput

?InternalVoltageRegulatoreliminatesneedforexternalReferenceVoltage(VREF)

?LowLeakageCurrentinShutdownMode:<1mA

?Optimizedfora50VSystem

?LowProfileRoHSCompliantPackage,2508CMSL-3

UMTS/WCDMA

?42%@POUT=+28.5dBm

?26%@POUT=+17dBm(withoutDC/DCConverter)

?LowQuiescentCurrent:8mA(inlowpowermode)

?HSDPACompliant(nobackoffrequired)

TD-SCDMAMODE

?38%@POUT=+27.5dBm

?22%@POUT=+16dBm(withoutDC/DCConverter)

AWT6241應(yīng)用:

?WirelessHandsetsandDataDevicesfor

?UMTS/WCDMAIMT2.1GHzband

?TD-SCDMA1.8/2.0GHzbands

圖1.AWT6241方框圖

圖2.AWT6241應(yīng)用電路

詳情請見:

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