GPS模块开发手册

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1、PalmtoneGSD4e模块GPS模块开发手册——GSD4e版权所有侵权必究Confidential模块简介（（（功能特点（功能特点）））·采用SiRFstarIVGSD4eWLCSP芯片，高集成度，单芯片GPS方案·本模块连接简单方便，可通过外接GPS天线实现NMEA输出·模块已集成16.369M晶振和32.768khz晶体，GPS专用滤波器和外围电源电路·3.3VCMOS通用串行接口，默认4800bps,最高1.25Mbps·预留I2C接口，方便扩展DR功能·尺寸：16.6mm*12.2mm*2.4

2、mm，管脚间距：1.1mmGSD4eWLCSP模块特性：FullyIntegrated,High-sensitivityGPSEngine·Performance–Highsensitivitynavigationengine(PVT)tracksaslowas-163dBm–HighestPerformanceGPSEngine–Extremelylowweaksignaltrackingsensitivity–ActiveJammerRemover–SiRFLocTMAGPS(Autonomous,M

3、S-Based,andMS-Assisted)(Needoperatorsupport)–SiRFInstantFixTMSGEE/CGEE(Needserversupport)–MEMSSupport–Smallestfootprintandtotalsolutionsize–HighestlevelofBOMintegration–48trackverificationchannels–Cold/Warm/HotStartTime:35/35/1sec.Atopenskyandstationaryen

4、vironments–ReacquisitionTime:0.1second–RFMetalShieldforbestperformanceinnoisyenvironments·Advantages–IntegratedhighperformanceLNA,ReducedBOMcost–EmbeddedCGEE(ClientGeneratedExtendedEphemeris)thatcancaptureephemerisdatafromsatelliteslocallyandpredictsephem

5、erisoutto3days.Soifthemodulewasoffwithin3days,itcouldcompletepositioningprocesswithin2secondsjustlikehotstart.–Removesin-bandjammersupto80dB-Hz,andTracksupto8CWjammers,sothemodulecanpreventGPSsignalinterferencewhendesign-intheelectricaldevicewithnoisyelec

6、tricalsignalinterferencessuchasLaptop,mobilephone,DSC,etc.–-160dBmAcquisitionSensitivityvs.SiRFstarIII-155dBm–-163dBmTrackingSensitivityvs.SiRFstarIII-159dBm–SignificantlyimprovedTTFFatweaksignalranges–SupportSiRFawaretechnology–SupportAdaptiveMicropowerC

7、ontroller,Only50to500μAmaintainshotstartcapabilityand<10mWrequiredforTricklePower™mode，which60%improvedovertheindustrybenchmarkSiRFstarIII,sousercanleavepoweronalldayinsteadofpoweroffSeptember,2011ProprietaryandConfidential–SupportMEMSsensorthroughI2Cinte

8、rface–Suitableforbatterydrivedevicesthatneedlowerpowerconsumptionapplication–Idealforhighvolumemassproduction(Tapingreelpackage)–CostsavingthrougheliminationofRFandboardtoboarddigitalconnectors–Flexibleandcosteffect