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ConfidentialConfidentialConfidentialConfidential•BaseBand,ConfidentialConfidential•ConfidentialConfidential•.•.ConfidentialConfidential••QISin(2πfct)Cos(2πfct)PAQISin(2πf1t)Cos(2πf1t)PACos(2πf2t)ConfidentialConfidentialConfidentialConfidentialAD6539ConfidentialConfidential•ConfidentialConfidentialvBPF1LNABPF2BPF2“”ConfidentialConfidentialvRFLPFLPFLO90ConfidentialConfidential&vvDC-OffSet:BERNearZero-IFConfidentialConfidentialConfidentialConfidential•T/RSwitch•SawFilter•LNA•Mixer•PA•VCO•PLLConfidentialConfidentialTX/RX:•FrequencyRange(MHz)•InsertionLoss(dB)•Attenuation(dB)•V.S.W.R.•Isolation(dB)•Harmonics2xfo,3xfo(dBc)ConfidentialConfidentialSAW:•SAW•SAWSAW•SAWConfidentialConfidentialØØØØØØConfidentialConfidential••••••LNAMixerTransceiverConfidentialConfidentialPA()PinPAVcPACPowerdetector50ohmCouplerToAntSWVsFromCodecConfidentialConfidential•••••••PAConfidentialConfidentialVoltageControlledOscillatorLCVCOLC10=wConfidentialConfidentialVCO:ØHighspectralpurityØLinearvoltage-frequencytransfercharacteristicØGoodfrequencystabilitytotemperatureØFrequencydeviationcapabilitythemax.PLLcapturerangeØTimeresponseØLowpowerconsumptionandOutputlevelØOutputharmoniclevelandtuningsensitivityØPhasenoiseConfidentialConfidentialPLL•••ConfidentialConfidentialPLL•PDFDPFDPD/FD/PFD//•LoopFilterLPLPN•VCOVCO--•ReferencesignalsourceConfidentialConfidentialPLLBlockDiagramConfidentialConfidential•1Frequencydeviationcapabilitythemax.PLLcapturerange2ConfidentialConfidential•••KConfidentialConfidential•PhaseDetector•——ChargePump——LoopFilter•VoltageControlledOscillator•DIVConfidentialConfidentialPhaseDetector•ConfidentialConfidential——ChargePump——LoopFilter••LPFPFDVCOConfidentialConfidentialLowPassFilterphasedetectorRzCzCpVCOR4C4ToimportantthetransientcharacteristicsTheloopcantrackbetterachangeininputfrequencyTofurtherreducethephasenoiseofthechargepumpConfidentialConfidentialDIVNNDIVrfNf×=0ConfidentialConfidentialGSMConfidentialConfidentialGSMFrequency••••ConfidentialConfidentialBurstConfidentialConfidentialGMSK,B*T=0.3270.833kbit/s3.69usARFCNGSMGSMARFCH1-124MSFc(n)=890.2+(n-1)*0.2,1=n=124,MHzBSFc(n)=890.2+(n-1)*0.2+45ConfidentialConfidential•QB=12/13us=0.92us•1Burst=156.25Bit•TotalTime=4*12/13*156.25=15/26ms=577us•BitRate=156.25bit/577us=270.833Kbit/sConfidentialConfidential••ConfidentialConfidentialGSMSpecification(Transmitter)•OutputpowerandPower/TimeTemplate•PhaseerrorandFrequencyerror•OutputSpectrum•Spectrumduetomodulation•SpectrumduetoSwitching•SpuriousemissionConfidentialConfidentialOutputPowerGSM900DCS1800ConfidentialConfidentialPower/TimeTemplateConfidentialConfidentialPhaseerrorandFrequencyerrorConfidentialConfidentialOutputSpectrumConfidentialConfidentialOutputSpectrumConfidentialConfidentialOutputSpectrumConfidentialConfidentialSpuriousEmissionConductedSpuriousEmission-MSinidlemodeConfidentialConfidentialSpuriousEmissionConductedSpuriousEmission-MSallocatedachannelConfidentialConfidentialGSMSpecification(Receiver)•BER(BitErrorRate)•FER(FrameEraseRate)Frame•RBERBER•BER2%BS•ClassIIConfidentialConfidentialdB&dBm&dBcvdB::vdBm:vdBcoVVlg20oPPlg10mWPdBm1lg10)(=P1P221lg10)(PPdBc=ConfidentialConfidential0dbm=1mw10dbm=10mw30dbm=1w10lg(2)=310lg(5)=710lg(10)=10dB------12dB---169dB---86dB---43dB---20dB---1-3dB---1/2=0.5-6dB---1/4=0.25-9dB---1/8=0.125-12dB---1/16=0.0625.03125-18dB---1/64=0.015625ConfidentialConfidential