Anadigics AWT6241 TD-SCDMA手机线性功率放大方案

AnadigicsAWT6241TD-SCDMA手机线性功率放大方案Anadigics公司的AWT6241是HELP3TMUMTS/TD-SCDMA线性功率放大模块,采用InGAPHBT技术,单模式控制输入,工作频率在1880-1920MHz和2010-2025MHz.工作电压从3.2V到4.2V,POUT=+27.5dBm的效率为28%,主要用在TD-SCDMA1.8/2.0频段以及UMTS/WCDMAIMT2.1GHz的无线手机和数据设备.本文介绍AWT6241主要特性,方框图和典型应用电路.

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应用:

•WirelessHandsetsandDataDevicesfor

•UMTS/WCDMAIMT2.1GHzband

•TD-SCDMA1.8/2.0GHzbands

图1.AWT6241方框图

图2.AWT6241应用电路

详情请见:

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