NXP单片GSM/GPRS多媒体解决方案

NXP公司的AeroFONE单片GSM/GPRS低成本多媒体解决方案PNX4903能以超低成本实现带彩色屏的音乐手机.这种单芯片解决方案集成了模拟和数字基带,RF收发器,功率管理以及音频电路.唯一的外接元件是功率放大器和存储器.完整的双频段GSM/GPRS调制解调器可以采用低成本的4层PCB做成,仅需要49个元件.本文介绍了PNX4903的主要性能以及多媒体手机的方框图. AeroFONEsingle-chipGSM/GPRSlow-costmultimediasolution TheNXPAeroFONEPNX4903enablesamusicphonewithcolorscreenintheultra-low-costmarketsegment.Byintegratingtheanaloganddigitalbasebands,RFtransceiver,powermanagement,andaudiocircuitryinasinglemonolithicIC,thePNX4903solutiondeliversthesmallestbillofmaterialsandPCBfootprint,alongwiththelowestmanufacturingandtestcosts. TheonlyexternalICsneededareapoweramplifierandmemory.Acomplete,dual-bandGSM/GPRSmodemcanberealizedwithjust49externalcomponentsonalow-costfour-layerPCB.Traditionalmulti-chiphandsetdesignsrequirethreetimesthenumberofexternalcomponentsonamorecomplexPCB. Thehardwarereferencedesignisaccompaniedbyaflexible,pre-integratedandvalidatedsoftwarecomplementthatreducesR&Dexpenseandspeedstime-to-market. 主要特性: CompleteGSM/GPRSsolutioninasinglemonolithicIC GSMPhase2+compliant Lowpower,high-performance0.13-mCMOSprocess Industry-leadingARM926-EJSMCUcore High-performanceDSPcore SAICsupportforincreasednetworkcapacity IntegratesalltheSRAMforavoice-centricphone CompletelyintegratedRFtransceiver Dual-bandRxandTx(850or900/1800or1900) Proven,industry-leadingAeroIItechnology Best-in-classperformance Completepowermanagementunit(PMU)subsystem Integratedbattery-chargingcircuitry Integratesallvoltageregulators(LDOsandDC/DC) Integratedaudiosubsystem MP3playbackwithsupportforSDcard 40voicepolyphonicMIDI+MP3ringtones Microphoneamplifierwithtwodifferentialinputs Twodifferentialaudiooutputamplifiers HR/FR/EFR/AMRvocoders Alternate40-kS/saudiomodeforpolyphonicringtones Speakerphonenoisesuppressionandechocancellation Optimized,flexiblesystemcontrol Integrated26-MHzDCXO(onlyneedXTAL) Integrated32-kHzRTCoscillator(onlyneedXTAL) Flexiblemodesforoptimizedpowerconsumption Comprehensivesetofperipheralfunctions Standardpackage 10x10mmplasticballgridarray(PBGA) RoHS-compliant PNX4903方框图: