ChipsetSiRFGSC3f/LPxFrequencyL1,1575.42MHzCodeC/ACodeProtocolNMEA0183v2.2Default:GGA,GSA,GSV,RMCSupport:VTG,GLL,ZDA)SiRFbinaryandNMEACommandAvailableBaudRate4,800to57,600bpsadjustableChannels20Flash4MbitSensitivityTracking:-159dBmColdStart42seconds,averageWarmStart38seconds,averageHotStart1second,averageReacquisition0.1second,averageAccuracyPosition:10meters,2DRMS5meters,2DRMS,WAASenabledVelocity:0.1m/sTime:1ussynchronizedtoGPStimeMaximumAltitude＜18,000meterMaximumVelocity＜515meter/secondMaximumAcceleration＜4GUpdateRate1HzDGPSWAAS,EGNOS,MSASDatumWGS-84InterfaceI/OPins2serialportsPhysicalCharacteristicType28-pinstampholesDimensions22.4mm*17mm*3mm 0.2mmDCCharacteristicsPowerSupply3.3Vdc 5%BackupVoltage2.0~3.6VdcPowerConsumptionAcquisition:40mATracking:25mAEnvironmentalRangeHumidityRange5%to95%non-condensingOperationTemperature-30℃to85℃StorageTemperature-40℃to85℃Pin#NameDescription1TXD1Serialoutputforchannel2RXD1Serialinputforchannel3TXD0Serialoutputforchannel4RXD0Serialinputforchannel5VCCDCsupplyvoltageinput6VCCDCsupplyvoltageinput7GNDGround8VDD28OUTOutputvoltage2.85V9NCNC10RESET_NReset(Activelow)11V_BATBackupbatterysupplyvoltage12NCNC13GNDGround14GNDGround15GNDGround16RF_INGPSRFsignalinput17GNDGround18VCC_RFSupplyAntennaBiasvoltage19V_ANTAntennaBiasvoltage(mustconnecttogroundifnotused)20NCNC21NCNC22NCNC23NCNC24NCNC25NCNC26NCNC27EXTINT0ExternalInterrupt28TIMEPULSEOnePulsePerSecond