型号包括：iT500，iT300，iT520，iT03S，iT0302，iT430，UP500，UP300，UP501型号iT500iT520iT300iT430(最小尺寸）iT03S（授时）iT03（授时）UP500UP501UP300GeneralL1frequency.C/Acode(SPA)chipsetMediatekMTK3329MTK3329SirfstarIIISiRFIV(GSD4e)uN2110+uN8021uN2110+uN8021MTK3318MediatekMTK3329SirfstarIIIchannel22track+66acq.22track+66acq.204812123222track+66acq.20updatarateupto10Hzupto10Hz1Hz1Hzupto3Hzupto3Hzupto5Hzupto10Hz1HzAccuracy Position1.8m(CEP95) 1.8m(CEP95)2.5m(CEP95)2.7m(CEP95)2.7m(CEP95)2.7m(CEP95)1.8m(CEP95)2.7m(CEP95) Velocity 0.1m/s 0.1m/s0.01m/s0.1m/s0.1m/s0.1m/s0.1m/s0.1m/s Time50nsRMS 1us1usRMS20nsRMS20nsRMS100nsRMS50nsRMS1usRMSTTFFtype Coldstart33s 32s35s35s35s32s34s32s Warmstart33s 32s35s34s34s32s34s32s Hotstart1s 1s1s4s4s1s1s1sSensitivity Acquisition-148dBm-148dBm-146dBm-147dBm-142dBm-142dBm-146dBm-148dBm-146dBm Re-acquisition-160dBm-160dBm-157dBm-160dBm-149dBm-149dBm-156dBm-160dBm-157dBm Navigating-165dBm-165dBm-159dBm-160dBm-156dBm-156dBm-159dBm-165dBm-159dBmPowerdrain Navigating75mWtype75mWtype75mWtype56/68mW90mWtype90mWtype90mWtype75mWtype84mWtype Backupstate15uW15uW18uW36uW20uW(sleepmode)20uW(sleepmode)10uW15uW18uWOperatingvoltage Mainsupply+3.0 4.2V+3.0 4.2V+3.0 3.3V+1.8V+2.7 3.3V+2.7 3.3V+3.0 5.5V+3.0 4.2V+3.3 3.6V Backupsupply+2.0 4.2V+2.0 4.2V+1.5 3.3V +2.0 5.5V+2.0 4.2V+1.5 3.6VProtocolNEMA0183NEMANEMASirfbinaryNEMA0183OSPbinaryNEMAiTalkNEMAiTalkNEMA0183NEMA0183NEMASirfbinaryBaudrate9600(configurable)9600(confi.)4800/9600(confi.)4800(confi.)4800(confi.)4800(confi.)9600(confi.)9600(confi.)9600(confi.)Dimensions16.2 18.8 2.3mm10.4 14.0 2.316.2 18.8 2.3mm9.6 9.6 1.85mm16.2 18.8 2.321.6 23.3 2.6mm22.0 22.0 8.0mm22.0 22.0 8.0mm19.0 27.0 7.2mmWeight1.5g 1.4g 1.6g2.7g9.0g9.0g9.1gOperatingtemp.-40C 85C-40C 85C-40C 85C(1)-40C 85C(1)-40C 85C-40C 85C-40C 85C(1)-40C 85C-40C 85C(1)Stotagetemp.-40C 85C-40C 85C-40C 85C-40C 85C-40C 85C-40C 85C-40C 85C-40C 85C-40C 85CHWoptionsIT500U(USB2.0)IT520U(USB2.0) iT0302(replacementforiT02)UP500B(internalbackupbattery) UP500R(RS232levelserialport+battery)UP501R(RS232levelserialport+battery)UP501U(USB2.0) UP501D Memorysize4Mbit 8Mbit 8Mbit16Mbit4Mbit 4MbitAntennaExtemal,passiveoractive Extemal,passiveoractive Extemal,passiveoractiveExtemal,passiveoractiveintergratedpatch 18.4 18.4intergratedpatch intergratedpatch 18.4 18.4 connector switchforexternalant.AntennainputLGApad50ohm LGApad50ohmLGApad50ohmLGApad50ohmLGApad50ohm HiroseU.FL-R50ohmAntennabiasSameasVDDSameasVDDSameasVDD SameasVDDRFSameasVDDRF SameasVDDI/Oports30contactLGA Twoasynchronousserialports 1ppsoutputs Antennadetectorstatuspins 30contactLGA Twoasynchronousserialports 1ppsoutputs 8 GPIO(oneinterruptcapable)28contactLGA onehostport:UART,SPI,I2c On/Offcontrolinput 1ppsoutputs antennabiassupplyinput dedicatedI2Cportforexternalsensors30contactLGA Oneasynchronousserialports 1ppsoutputs SPI-bus CapturetimerinputPulsemeasurementinput MMC(Master)connection30contactLGA Oneasynchronousserialports 1ppsoutputs 2 SPI-interface 22-pinGPIO(sharedfunctionalityDualpulsemeasurementinput 2 pulsemeasurementtimers 2 capturetimers 2 clockonputs MMC(Master)connection6contactpinsoldering Twoasynchronousserialports Main Back-upsupply 1ppsoutputs 8-pincableconnector Oneasynchronousserialports Main Back-upsupply 1ppsoutputs RESETinput UPDATEinput(re-programming)