蓝牙测试仪TC-3000C介绍-低功耗音频

北京联华行科技有限企业1韩国TESCOM成立于１９９３年位于韩国首都首尔提供全套无线通讯测试系统蓝牙测试仪、DAB/DMB测试仪、RFID测试仪、GPS（GNSS）测试仪、WI-Fi/BLE测试仪TEMCell屏蔽箱天线耦合器等2内容提要蓝牙基本概念TC-3000C功能简介蓝牙测试内容联华行3蓝牙基本概念4WhatIsBluetooth?Bluetoothis…auniversalradiointerfaceinthe2.4GHzfrequencybandthatenableselectronicdevicestoconnectandcommunicatewirelesslyviashortrange(10~100m)ad-hocnetwork.Keyfeatures:LowpowerconsumptionLowcostmodulesVoice/datatransmissionApplicationsmainlyforportabledevicesCableReplacementTechnology5SpreadSpectrum扩频FrequencyHoppingTheBluetoothsystemoperatesinthe2.4GHzISMband.

79carriers,spacedat1MHzLowerguardspace:1.5MHzUpperguardspace:3MHzNominalhoprate:1,600hops/s6DevicePowerClasses功率级别LinkBudget7FH/TDDChannel跳频/时分复用TimeDivisionDuplex(TDD)FH2.4022.480Freq(GHz)masterslavetime8FHSynchronization跳频同步MasteridentitysequenceMasterclockphaseFree-runningclocks9ModulationCharacteristics调制特征GaussianFSKModulationindex(h):0.28<h<0.35Gaussianshaping:

BT(Bandwidth-bitperiodproduct)

=0.5Symbolrate(Rs):Rs=1Ms/s20dBspectralbandwidth:1MHzSymboltiming<±20ppmMax.frequencydeviation:140~175kHzMin.frequencydeviation:115kHz10PacketFormat分组格式PacketFormatAccessCodePreamble(4-bit)SyncWord(64-bit)Trailer(4-bit)11PacketTypes分组类型Control1-slot3-slot5-slot12Discovery发觉Inquiry13LinkSetup链接Page:CreatingaPiconetSlaveDSlaveCSlaveBmasterAstandbyParkedslaveActiveslaveMaster14ProtocolStack协议栈BasicsApplicationFrameworkHardwareDescription15GAPProfile链接过程L2CAPL2CAPApplicationApplicationSDP(opt)SDP(opt)ChannelEstablishmentL2CAP_ConnectReq/RspServiceDiscoveryServiceClassConnectionEstablishmentRFCOMM,TCS,Profile,…DeviceADeviceBLinkManager(LMP)LinkManager(LMP)GenericAccessProfileBasebandBasebandRFRFLinkEstablishment-completeLMP_setup_completeBondingLMP-Pairing/AuthenticationLinkEstablishment-PageLMP_host_connection_reqDeviceDiscoveryInquiry,NameDiscovery16PacketTypes(EDR分组)17TC-3000C功能简介18TC-3000CStructure构造RFRXRFTXDSPSWSBCLCDKEYMouseLANSoundIn/OutBBIN(2)BBOUT(2)HostControllerHostRS232USBUSBUSBRS232UARTBCSPIntroductionRS232UARTBCSP19Functions五大功能（协议、图形、RF测试项、音频、信号发生器）LinkAnalyzerLowerLayerProtocolAnalyzerHostAnalyzerUpperLayerProtocolAnalyzerMeasurementsGraphicalRFandBasebandMeasurementsBluetoothorGeneralmodeMeasurement2(BERSearch)MeasurementEDR(I/QConstellation,TX-BER,DEVM)TestCasesRFConformanceTestSpec.AudioAudioQualityTestsandMeasurementsSigGenGeneralSignalGenerator@2.4GHzMeasurementMeasurement2Measurement(EDR)TestCasesAudioSigGenConfigurationQuitLinkAnalyzerHostAnalyzer20LMPMessages链路管理层RFBasebandLMPHCIL2CAPRFCOMMSDPProfileManagerLinkAnalyzer-LMP21L2CAP逻辑链路控制和适配协议RFBasebandLMPHCIL2CAPRFCOMMSDPProfileManagerHostAnalyzer-L2CAP22Measurement图形测量BluetoothRFMeasurementsSupports5differentmeasurementsSpectrum,FMmodulation,Powervs.Time,Powervs.Channel,BitErrorRate(BER)Providestouserstheflexibilityofcontrolling“TestMode”parametersTransmitter/Loopback,hopping,whitening,packettype,length,bitpatternEachmeasurementiscloselyrelatedtoBluetoothConformanceTests–RFTestCasesIfanyTestCasefails,thecorrespondingmeasurementwillhelpuserstotroubleshoot.北京联华行北京联华行科技有限企业23FrequencyRange频率范围Measurement-Spectrum24RFTestCases射频测试项BluetoothConformanceTest（射频一致性测试）SupportsBluetoothConformanceTest12RFTestCasesQuickTest7EDR1EPC7BLE联华行25RFTestCases基本测试项TXTestsOutputPowerPowerDensityPowerControlSpectrum–FrequencyRangeSpectrum–20dBBandwidthAdjacentChannelPowerModulationCharacteristicsInitialCarrierFreq.ToleranceCarrierFrequencyDriftRXTestsSensitivity–SingleslotpacketsSensitivity–Multi-slotpacketsMaximumInputLevelQuickTestingfor4TXTests–OP/MOD/ICFT/CFD北京联华行TestCases-RF26RFTestCases

EDR射频测试项TXTestsEDRRelativeTransmitPowerEDRCarrierFrequencyStabilityandModulationAccuracyEDRDifferentialPhaseEncodingEDRIn-bandSpuriousEmissionsRXTestsEDRSensitivityEDRBERFloorPerformanceEDRMaximumInputLevel联华行TestCases–EDRRF27V3.0HighSpeed蓝牙3.0旳关键是“GenericAlternateMAC/PHY”(AMP)，这是一种全新旳交替射频技术，允许蓝牙协议栈针对任一任务动态地选择正确射频。蓝牙3.0旳数据传播率提升到了大约24Mbps，是蓝牙2.0旳八倍。功耗方面，经过蓝牙3.0高速传送大量数据自然会消耗更多能量，但因为引入了增强电源控制(EPC)机制，再辅以802.11，实际空闲功耗会明显降低。

EPC(EnhancedPowerControl)北京联华行北京联华行科技有限企业28V4.0+BLE蓝牙低功耗蓝牙4.0旳标志性特色是低功耗蓝牙无线技术规范。用一粒纽扣电池可连续工作数年之久。100米以上超长距离、AES-128加密等诸多特色。能够用于计步器、心律监视器、智能仪表、传感器物联网等众多领域，大大扩展蓝牙技术旳应用范围。BLE(LowEnergyRFTestCase)option3000-50需要单独订购。北京联华行TC-3000C旳BTLE测试项1)输出功率（LEOutputPower）；2)带内辐射（LEIn-bandEmissions）；3)调制特征（LEModulationCharacteristics）；4)载波频率偏移和漂移（LECarrierFrequencyOffsetandDrift）；5)接受敏捷度（LEReceiverSensitivity）；6)最大输入信号（LEMaximumInputSignalLevel）；7）包误码率完整报告（LEPERReportIntegrity）北京联华行2930Audio音频测试TalkTestandAudioMeasurementSupportsAudioFeaturescompletelyUpto3SCOlinksSupportedPacketType:HV1/HV2/HV3SupportedAirCoding:CVSD/u-law/A-lawProvides2differentAudioTestSchemesSCOLoopbackTestToneTest(AudioMeasurementfor1KHzor400Hz)AudioSpectrumandAudioSweepTestForboth,one-touchautomatictest;noadditionaloperationrequiredtocreateconnectionordosomethingelse.ProvidesthepowerfulsolutiontotestTXpowerandRXperformanceaswellasAudiofeaturesimultaneously北京联华行31AudioMeasurement(1)One-touchAutomaticTest(withCVSDcodedHV3packet)AudioMeasurementresults信噪比SINAD失真度DistortionDUTTXPowermeasuredonthreechannels功率User-definabletonelevelDUTRXleveliscontrollabletotestDUTRXperformanceAudio-AudioTest32蓝牙测试内容总结射频一致性协议一致性音频参数33射频一致性基本12项EDR7项EPC1项BLE7项QuickTest迅速测试可用于工厂简朴测试联华行34协议一致性OSI协议层TC-3000C可实时捕获通讯命令

用于判断驱动程序分析故障原因，确保通讯正常联华行35音频