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1、MicrochipBM64蓝牙4．2立体声音频模块解决方案时间：2016-10-1009:39:44 作者：Microchip 来源：中电网Microchip公司的BM62/BM64立体声音频模块是完全合格的蓝牙4.2双模式模块,能在产品中增加无线音频和语音应用.支持HFP1.6,HSP1.2,A2DP1.3,SPP1.2,AVRCP1.6,支持蓝牙(BR/EDR/BLE)指标,支持分辨率高达24位96kHz音频数据格式,频率范围2.402GHz到2.480GHz,接收灵敏度-90dBm(2MbpsEDR),BM64输
2、出功率+15dBm,支持64kbpsA律和u律PCM格式/连续可变斜率增量调制(CVSD),主要用在条形音箱和超低音音箱,蓝牙扬声器和多个扬声器.本文介绍了BM64主要特性,多种应用框图,BM64评估板(EVB)主要特性和主要元件以及电路图.TheBM62/64StereoAudiomoduleisafullyqualifiedBluetooth4.2dual-modemodulefordesignerstoaddwirelessaudioandvoiceapplicationstotheirproducts.TheBM62/64modu
3、leisaBluetoothSpecialInterestGroup(SIG)certifiedmodulethatprovidesacompletewirelesssolutionwithBluetoothstack,integratedPCBantenna,andworldwideradiocertificationsinacompactsurface-mountpackage.TheBM62/64modulehasseveralSKUs.TheBM62isaClass2deviceandtheBM64isavailableinbot
4、hClass1andClass2versions.BM64主要特性:•QualifiedforBluetoothv4.2specifications•Worldwideregulatorycertificationsareplanned•SupportsHFP1.6,HSP1.2,A2DP1.3,SPP1.2,AVRCP1.6•SupportsBluetooth(BR/EDR/BLE)specifications(FWdependent)•Stand-alonemodulewithon-boardPCBantennaandBluetoot
5、hstack•Supportshighresolutionupto24-bit,96kHzaudiodataformat•SupportstoconnecttwohostswithHFP/A2DPprofilessimultaneously•TransparentUARTmodeforseamlessserialdataoverUARTinterface•SupportsvirtualUARTcabletransportbetweenhostMCUandsmartphoneapplicationsbyBluetoothSPPorBLEli
6、nk•EasytoconfigurewithWindows®GUIordirectlybyexternalMCU•Supportsfirmwarefieldupgrade•Supports1microphone•Compactsurfacemountmodule:-BM62:29x15x2.5mm-BM64:32x15x2.5mm•CastellatedsurfacemountpadsforeasyandreliablehostPCBmounting•RoHScompliant•Idealforportablebatteryoperate
7、ddevices•InternalbatteryregulatorcircuitryRF/Analog•Frequencyspectrum:2.402GHzto2.480GHz•Receivesensitivity:-90dBm(2MbpsEDR)•Class2outputpower(+2dBmtypical)forBM62,BM64andClass1outputpower(+15dBmtypical)forBM64DSPAudioProcessing•Supports64kbpsA-Law,u-LawPCMformat/Continuo
8、usVariableSlopeDelta(CVSD)ModulationforSCOchanneloperation•Supports8/16kHznoisesuppression•Suppo
