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1、GSD4e模块开发手册GPS模块开发手册——GSD4e版权所有侵权必究深圳市汇诚和电子技术有限公司TEL：0755-83510192-804FAX：0755-82814215九月,2021ProprietaryandConfidentialvi模块简介（功能特点）采用SIRF公司最新SiRFstarIVGSD4eWLCSP芯片CPU内核ARM7内核处理架构采用ROM48通道“全视野”追踪卫星,提供最准确的定位数据采用3.3VCMOS通用串行接口,UART波特率有4800/9600bps,最高1.25Mbps可调预留I2
2、C接口，方便扩展DR功能可通过外接GPS天线实现NMEA输出模块定位精度<2.5m-163dbm灵敏度-148dbm冷启动冷启动<35秒(平均值),热启动<1秒RFIN端可接有源或无源天线（GPS模块内含滤波和一级放大）采用标准NMEA0183码支持DGPS协议:WAAS,EGNOS支持AGPS协议，可通过GPRS访问谷歌服务器或SIRF服务器实现AGPS功能（需要运营商的支持）尺寸：16.6mm*12.2mm*2.4mm，管脚间距：1.1mmGSD4eWLCSP模块特性：FullyIntegrated,High-se
3、nsitivityGPSEngine·Performance–Highsensitivitynavigationengine(PVT)tracksaslowas-163dBm–HighestPerformanceGPSEngine–Extremelylowweaksignaltrackingsensitivity–ActiveJammerRemover–SiRFLocTMAGPS(Autonomous,MS-Based,andMS-Assisted)(Needoperatorsupport)–SiRFInstantFi
4、xTMSGEE/CGEE(Needserversupport)–MEMSSupport–Smallestfootprintandtotalsolutionsize–HighestlevelofBOMintegration–48trackverificationchannels–Cold/Warm/HotStartTime:35/35/1sec.Atopenskyandstationaryenvironments–ReacquisitionTime:0.1second–RFMetalShieldforbestperfor
5、manceinnoisyenvironments·Advantages–IntegratedhighperformanceLNA,ReducedBOMcost–EmbeddedCGEE(ClientGeneratedExtendedEphemeris)thatcancaptureephemerisdatafromsatelliteslocallyandpredictsephemerisoutto3days.Soifthe九月,2021ProprietaryandConfidentialmodulewasoffwithi
6、n3days,itcouldcompletepositioningprocesswithin2secondsjustlikehotstart.–Removesin-bandjammersupto80dB-Hz,andTracksupto8CWjammers,sothemodulecanpreventGPSsignalinterferencewhendesign-intheelectricaldevicewithnoisyelectricalsignalinterferencessuchasLaptop,mobileph
7、one,DSC,etc.–-160dBmAcquisitionSensitivityvs.SiRFstarIII-155dBm–-163dBmTrackingSensitivityvs.SiRFstarIII-159dBm–SignificantlyimprovedTTFFatweaksignalranges–SupportSiRFawaretechnology–SupportAdaptiveMicropowerController,Only50to500μAmaintainshotstartcapabilityand
8、<10mWrequiredforTricklePower™mode，which60%improvedovertheindustrybenchmarkSiRFstarIII,sousercanleavepoweronalldayinsteadofpoweroff–SupportMEMSsensorthroughI2Cinterfac
