首页 LEA-4A_Data_Sheet(GPS.G4-MS4-05017)

LEA-4A_Data_Sheet(GPS.G4-MS4-05017)

举报
开通vip

LEA-4A_Data_Sheet(GPS.G4-MS4-05017) !! your position is our focus! Abstract Technical!description!of!the!low-cost!ANTARIS!4!GPS!Module!with USB! interface,! integrated! in! the!17!x!22.4!mm!housing,! and! for use!with!passive!and!active!antennas.! ! u-blox AG Zürcherstrasse!68! 8800!Thalwi...

LEA-4A_Data_Sheet(GPS.G4-MS4-05017)
!! your position is our focus! Abstract Technical!description!of!the!low-cost!ANTARIS!4!GPS!Module!with USB! interface,! integrated! in! the!17!x!22.4!mm!housing,! and! for use!with!passive!and!active!antennas.! ! u-blox AG Zürcherstrasse!68! 8800!Thalwil! Switzerland! www.u-blox.com! ! Phone!+41!1722!7444! Fax!+41!1722!7447! info@u-blox.com! ! ! ! ! ! ! ! ! ! ! ! LEA-4A GPS Receiver Module Data Sheet PRELIMINARY! ! D at a Sh ee t! ! LEA-4A!-!Data!Sheet! PRELIMINARY! ! GPS.G4-MS4-05017-P2! ! Page 2! your position is our focus ! Title LEA-4A! Subtitle GPS!Receiver!Module! Doc Type Data!Sheet! PRELIMINARY! Doc Id GPS.G4-MS4-05017-P2! Revision Index Date Name Status / Comments P1! 31.!Oct!2005! GzB! Preliminary!release! P2! 21.!Dec!2005! GzB! Modified:!Sections!1.2,!1.3,!1.5,!2,!3.3!(RESET_N),!4.2!(Vant)! ! ! ! ! ! ! ! ! We!reserve!all!rights!in!this!document!and!in!the!information!contained!therein.!Reproduction,!use!or!disclosure!to!third!parties!without!express!authority!is!strictly!forbidden.! For!most!recent!documents,!please!visit!www.u-blox.com! ! ! Data Sheet Revisions Identification of applicable hardware Comments P1,!P2! All!data!codes! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! The!specifications!in!this!document!are!subject!to!change!at!u-blox'!discretion.!u-blox!assumes!no!responsibility!for!any!claims!or!damages! arising!out!of!the!use!of!this!document,!or!from!the!use!of!modules!based!on!this!document,!including!but!not!limited!to!claims!or!damages! based!on! infringement!of!patents,!copyrights!or!other! intellectual!property!rights.!u-blox!makes!no!warranties,!either!expressed!or! implied! with!respect!to!the!information!and!specifications!contained!in!this!document.!u-blox!does!not!support!any!applications!in!connection!with! active!weapon!systems,!ammunition,!life!support!and!commercial!aircraft.!Performance!characteristics!listed!in!this!document!are!estimates! only!and!do!not!constitute!a!warranty!or!guarantee!of!product!performance.! ! The! copying,! distribution! and! utilization! of! this! document! as!well! as! the! communication! of! its! contents! to! others!without! expressed! authorization!is!prohibited.!!Offenders!will!be!held!liable!for!the!payment!of!damages.!!All!rights!reserved,!in!particular!the!right!to!carry!out! patent,!utility!model!and!ornamental!design!registrations.! ! u-blox,!the!u-blox!logo,!the!TIM!type!GPS!module,!Antaris,!SuperSense,!"your!position!is!our!focus",!NavLox,!u-center,!FixNow!and!EKF!are! (registered)!trademarks!of!u-blox!AG.!The!u-blox!software!as!well!as!the!design!of!the!LEA!type!modules!is!protected!by!intellectual!property! rights!in!Switzerland!and!abroad.!!Further!information!available!at!info@u-blox.com.!!Copyright!©!2005,!u-blox!AG! ! ! LEA-4A!-!Data!Sheet! PRELIMINARY! Contents! GPS.G4-MS4-05017-P2! ! Page 3! your position is our focus Contents 1 Functional Description .................................................................................................4 1.1 Overview .............................................................................................................................................. 4 1.2 Block!Diagram ...................................................................................................................................... 4 1.3 Features................................................................................................................................................ 4 1.4 Operating!Modes.................................................................................................................................. 5 1.5 Protocols .............................................................................................................................................. 5 1.6 Assisted!GPS!(A-GPS) ............................................................................................................................ 5 1.7 Boot-Time!GPSMODE!Configuration..................................................................................................... 5 1.8 Antenna ............................................................................................................................................... 6 2 Performance Specification ...........................................................................................7 3 Mechanical Specification .............................................................................................8 3.1 Dimensions........................................................................................................................................... 8 3.2 Specification ......................................................................................................................................... 8 3.3 Pin!Assignment..................................................................................................................................... 9 4 Electrical Specification ...............................................................................................10 4.1 Absolute!Maximum!Ratings ................................................................................................................ 10 4.2 Operating!Conditions ......................................................................................................................... 11 5 Environmental Specification......................................................................................12 6 Product Lineup ...........................................................................................................13 6.1 Default!Settings .................................................................................................................................. 13 6.2 Ordering!Information.......................................................................................................................... 13 ! LEA-4A!-!Data!Sheet! PRELIMINARY! Functional Description! GPS.G4-MS4-05017-P2! ! Page 4! your position is our focus 1 Functional Description 1.1 Overview The!LEA-4A! is!a! low-cost!GPS!module! featuring! the!new!u-blox!16-channel!ANTARIS!4! receiver! technology.! It! provides!high!performance!at!35%!less!power!consumption!and!features!a!newly!added!USB!port!for!faster!data! transmission!and!more!flexibility.!The!ANTARIS!4!GPS!engine!inside!offers!outstanding!navigation!performance!in! the!most!challenging!metropolitan!areas.! The!LEA-LA!successor!also!shares! the!LEA-LA’s!17!x!22.4! form! factor! initially!created!by!u-blox.! Its!small! form! factor!and!SMT!pads!allow!for!fully!automatic!assembly!processes!with!standard!pick-and-place!equipment!and! reflow!soldering,!enabling!cost-efficient,!high-volume!production.!The!combination!of!these!features!makes!this! module!suitable!for!a!broad!spectrum!of!GPS!products!whose!key!requirements! include!high!performance,!low! cost,!low!power!consumption!and!small!size.! 1.2 Block Diagram ATR0601 ATR0622 ATR0610 ARM7TDMI CPU SRAM 128 kB [32 Bit] ROM 384 kB [32 Bit] Correlator 16 channels VCC LDO 23.104 MHz I/O XTO TxD2 TxD1 RxD1 VDDIO VCC GND VDD18OUT GPSMODE6 RESET_N V_BAT BOOT_INT GNDGND RF_IN GND V_ANT VCC_RF GPSMODE5 GPSMODE2 GPSMODE7 USB_DM USB_DP VDDUSB EXTINT0 TIMEPULSE 4 3 7 9 14 28 27 26 25 24 24 22 21 18 19 17 16 15 RF_ON SLEEP_N SAW-Filter A D UART, I/O ANT_SHORT_NANT_ON Timer / Counter RESET USARTs I/O Controller USB 1 2 RxD2 5 6 8 10 11 12 GND13 D ig ita l I F & C lo ck USB 20AADET_N Low Noise Amplifier RF Front-End Baseband Processor 32.768 kHz VBAT LDO RTC Backup RAM 4 kB [32 Bit] ! Figure 1: Block Diagram 1.3 Features • 34!mA!supply!current!at!Vcc!=!2.7!V! (Power!reduction!by!more!than!35%!compared!to! predecessor!modules)! • USB!connectivity! • Same!functionality!in!40%!smaller!footprint! • Significantly!lower!battery!backup!current!! • Configurable!I/O!and!UART!voltage!levels! • RoHS!compliant!(lead-free)! • 16!channel!ANTARIS!4!positioning!engine! • 4!Hz!position!update!rate! • Assisted!GPS!(MS-Assisted,!MS-Based)! • DGPS!and!full!SBAS!(WAAS,!EGNOS)!support! • FixNOW™!power!saving!mode! • 4!Boot!time!configuration!pins! • Supports!passive!and!active!antennas! • Antenna!short!and!open!circuit!detection!and! protection! • Operating!temperature!range:!–40!to!85°C! ! LEA-4A!-!Data!Sheet! PRELIMINARY! Functional Description! GPS.G4-MS4-05017-P2! ! Page 5! your position is our focus 1.4 Operating Modes The!ANTARIS!4!GPS!Technology!supports!following!Operating!Modes:! Operating Modes Description Continuous Tracking Mode (CTM) The!Continuous!Tracking!Mode!is!the!default!mode!for!normal!GPS! operation.!!In!this!mode,!the!Autonomous!Power!Management! (APM)!will!automatically!optimize!power!consumption!transparently! to!the!use!where!parts!of!the!receiver!are!switched!off!when!not! required.!!Also,!the!CPU!speed!is!reduced!when!the!CPU!workload!is! low.! FixNOW™ Mode (FXN) FixNOW™!Mode!is!a!configurable!power!saving!mode!where!the! GPS!is!put!into!sleep!mode!and!activated!up!on!a!selectable!time! interval!or!upon!external!request!(signal!activity!on!serial!port!or! EXTINT!input).!!This!mode!is!ideally!suited!in!applications!with! stringent!power!budget!requirements!in!mobile!and!battery! operated!end!products.! Table 1: Operating Modes For!more!information!see!the!System Integration Manual for ANTARIS 4![1].! 1.5 Protocols The!LEA-4A!supports!different!serial!protocols.! Protocol Type Runs on NMEA! Input/output,!ASCII,!0183,!2.3!(compatible!to!3.0)! All!serial!ports!and!USB! UBX! Input/output,!binary,!u-blox!proprietary! All!serial!ports!and!USB! RTCM! Input,!message!1,2,3,9! All!serial!ports!and!USB! Table 2: Available Protocols For!specification!of!the!various!protocols!see!the!Protocol Specification![2].! 1.6 Assisted GPS (A-GPS) The! ANTARIS! 4! GPS! engine! supports! both! MS! assisted! (output! of! raw! tracking! information! for! position! computation!by!the!service!provider)!and!MS!based!(accelerated!acquisition!and!position!computation!in!the!GPS! receiver)!A-GPS.!!Supply!of!aiding!information!like!ephemeris,!almanac,!rough!last!position!and!time!and!satellite! status!and!an!optional!time!synchronization!signal!will!reduce!time!to!first!fix!significantly.! 1.7 Boot-Time GPSMODE Configuration The!LEA-4A!provides!four!GPSMODE!pins!for!boot-time!configuration.!!They!become!effective!immediately!after! start-up.! !Once! the! LEA-4A! has! started,! the! configuration! settings!may! be!modified!with!UBX! configuration! messages.!!The!modified!settings!remain!effective!until!power-down!or!reset.!!If!these!settings!have!been!stored! in! battery-backup! RAM! (with!CFG-CFG!message),! then! the!modified! configuration!will! be! retained,! as! long! backup!battery!supply!is!not!interrupted.! ! ! LEA-4A!-!Data!Sheet! PRELIMINARY! Functional Description! GPS.G4-MS4-05017-P2! ! Page 6! your position is our focus GPSMODE GPSMODE 2 GPS sensitivity settings 8 USB power settings 0! Normal!sensitivity!mode! ! 0! Bus-Powered!USB!Interface! 1 High sensitivity mode 1 Self-Powered USB Interface The!other!sensitivity!settings!can!be!enabled!with!configuration!messages.! ! GPSMODE Activated Message Set Serial Port 1 and USB Serial Port 2 6 5 See Table 4 Baud Rate Protocol Baud Rate Protocol 0! 0! High! 19.2!Kbaud! NMEA! 57.6!Kbaud! UBX! 0! 1! Low! 4.8!Kbaud! NMEA! 19.2!Kbaud! UBX! 1 0 Medium (default) 9.6 Kbaud NMEA 38.4 Kbaud UBX 1! 1! Extended! 115.2!Kbaud! UBX! 19.2!Kbaud! NMA! Table 3: Supported GPSMODE settings (Default settings apply if not connected and are boldfaced) Protocol Low Medium (additional!messages) Extended (additional!messages) UBX NAV-SOL! NAV-SVINFO! UBX-INF! +!NAV-POSECEF,!NAV-POSLLH,!NAV-STATUS,! NAV-DOP,!NAV-VELECEF,!NAV-VELNED,!NAV- TIMEGPS,!NAV-TIMEUTC,!NAV-CLOCK! +!MON-SCHD,!MON-IO,!MON-IPC! RXM-RAW!(RXM_RAW:!only!if!raw!data! tracking!is!activated)! NMEA GGA,!RMC,!TXT! +!GSA,!GSV,!GLL,!VTG,!ZDA! +!PUBX00,!PUBX03,!PUBX04! Table 4: Message Sets For!more!information!see!the!System Integration Manual for ANTARIS 4![1].! 1.8 Antenna This!GPS!receiver! is!designed!for!use!with!passive!and!active!antennas.! !An!antenna!supervisor! is!provided.! ! If! activated,! the!GPS! receiver! is! capable! of! detecting! short! circuits! to! the! active! antenna! by! checking! the! bias! voltage!level!and!can!shut!down!the!voltage!bias!immediately.!!A!series!resistor!is!needed!in!front!of!the!V_ANT! input.! !UBX! and!NMEA!messages! are!provided! to! report! the! condition! of! the! antenna! supply.! !Open! circuit! detection! can! also! be! supported!with! an! additional! external! circuit.! ! For! details,! please! refer! to! the! System Integration Manual for ANTARIS 4![1].! ! Parameter Specification Antenna!Type! ! Passive!and!active!antenna! Active!Antenna! Recommendations! Minimum!gain! Maximum!noise!figure! Maximum!gain! 10!-!15!dB!(to!compensate!signal!loss!in!RF!cable)! 1.5!dB! 50!dB! Antenna!Supply! ! Using!VCC_RF!or!external!voltage!source! Antenna!Supervisor! Short!circuit!detection! Open!circuit!detection! Built-in! Enabled!with!external!circuit! Table 5: Antenna Specification ! Note When! using! active! antennas,! it! is! important! to! recognize! the! voltage! drop! of! the! bias! voltage! through!the!coaxial!cable.!!A!too!low!voltage!has!a!negative!impact!on!the!gain!the!pre-amplifier!in! the!antenna!can!achieve.! ! In!addition,! the!coaxial!cable,!connector!and! layout! structures!on! the! printed!circuit!board!contribute!to!signal!attenuation. ! LEA-4A!-!Data!Sheet! PRELIMINARY! Performance Specification! GPS.G4-MS4-05017-P2! ! Page 7! your position is our focus 2 Performance Specification Parameter Specification Receiver!Type! ! L1!frequency,!C/A!Code,!! 16-Channels! 8192!time!/!frequency!search!windows! Max!Navigation!Update!Rate! ! 4!Hz! Accuracy! Position! Position!DGPS!/!SBAS1! 2.5!m!CEP2! 5.0!m!SEP3! 2.0!m!CEP! 3.0!m!SEP! Acquisition4,!5! ! ! Cold!Start! Warm!Start! Hot!Start! Aided!Start6! Reacquisition! Fast!Acquisition! Normal! High!Sensitivity! Mode! Mode! Mode! 34!s! 36!s! 41!s! 33!s! <3.5!s! 5!s! <1!s! Sensitivity7! ! ! Acquisition! Tracking! Fast!Acquisition! Normal! High!Sensitivity! Mode! Mode! Mode! -134!dBm! -138!dBm! -140!dBm! -143!dBm! -146!dBm! -150!dBm! Accuracy!of!Timepulse!Signal! RMS! 99%! Granularity! 50!ns! <100!ns! 43!ns! Dynamics!! ! ≤!4!g! Altitude! Velocity! 18,000!m! 515!m/s! Operational!Limits!(COCOM)! One!of!the!limits!may!be!exceeded!but!not!both.! Table 6: Performance Specification !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1!Depends!on!accuracy!of!correction!data!of!DGPS!or!SBAS!service! 2!CEP!=!Circular!Error!Probability:!The!radius!of!a!horizontal!circle,!centered!at!the!antenna’s!true!position,!containing!50%!of!the!fixes.! 3!SEP!=!Spherical!Error!Probability.!!The!radius!of!the!sphere,!centered!at!the!true!position,!contains!50%!of!the!fixes.! 4!The!different!start-up!modes!like!cold,!warm!and!hot!start!are!described!in!the!System!Integration!Manual![1]! 5!Measured!with!good!visibility!and!-125!dBm!signal!strength! 6!Time!synch.!signal!from!aiding!source!must!be!supplied!to!EXTINT0!pin,!having!accuracy!of!better!than!200!µs! 7!Demonstrated!with!a!good!active!antenna! ! LEA-4A!-!Data!Sheet! PRELIMINARY! Mechanical Specification! GPS.G4-MS4-05017-P2! ! Page 8! your position is our focus 3 Mechanical Specification 3.1 Dimensions LEA-4A 3.0!±!0.3!mm![118.1!±!12!mil] 17.0!±!0.1!mm![669!±!4!mil] 1 22 .4 !± !0 .1 !m m ![8 81 .9 !± !4 !m il] TxD2 RxD2 TxD1 RxD1 VDDIO VCC GND VDD18OUT GPSMODE6 RESET_N V_BAT BOOT_INT GND GND RF_IN VCC_RF V_ANT GPSMODE5 GPSMODE2 GPSMODE7 VDDUSB USB_DM USB_DP EXTINT0 TIMEPULSE GND GND AADET_N 2.85!±!0.1!mm![112.2!±!4!mil] 3.80!±!0.1!mm![149.6!±!4!mil] 2.55!±!0.1!mm![100.4!±!4!mil] 1.10!±!0.1!mm![!!43.3!±!4!mil] 1.10!±!0.1!mm![!!43.3!±!4!mil] 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ! Figure 2: LEA-4A Dimensions 3.2 Specification Parameter! Specification! Tolerance Unit Length! 22.4! ±0.1! mm! Width! 17.0! ±0.1! mm! Thickness! 3.0! ±0.3! mm! Pitch!RF!pins! 1.1! ±0.1! mm! Pitch!Digital!pins! 1.1! ±0.1! mm! Weight! 2.1! ! g! Table 7: Mechanical Specification ! LEA-4A!-!Data!Sheet! PRELIMINARY! Mechanical Specification! GPS.G4-MS4-05017-P2! ! Page 9! your position is our focus 3.3 Pin Assignment Standard Function Remarks No! Name! I/O! Description! ! 1 TxD2! O! Serial!Port!2! ! 2 RxD2! I! Serial!Port!2! Internal!pull-up! 3 TxD1! O! Serial!Port!1! ! 4 RxD1! I! Serial!Port!1! Internal!pull-up! 5 VDDIO! I! Pad!voltage!supply! ! 6 VCC! I! Supply!voltage! ! 7 GND! I! Ground! ! 8 VDD18OUT! O! 1.8V!output! ! 9 GPSMODE6! I! Boot-time!config.!pin! Internal!pull-up! 10 RESET_N! I/O! Reset! Open!drain,!do!not!drive!high! 11 V_BAT! I! Backup!voltage! supply! ! 12 BOOT_INT! I! Boot!mode! Default!configuration:!Input,!internal!pull-down! 13 GND! I! Ground! ! 14 GND! I! Ground! ! 15 GND! I! Ground! ! 16 RF_IN! I! GPS!signal!input! Apply!no!DC!through!this!pin! 17 GND! I! Ground! ! 18 VCC_RF! O! Output!Voltage!RF! section!! ! 19 V_ANT! I! Antenna!Bias!voltage! ! 20 AADET_N! I! Active!Antenna! Detect! Default!configuration:!Input,!internal!pull-down! 21 GPSMODE5! I! Boot-time!config.!pin! Internal!pull-down! 22 GPSMODE2! I! Boot-time!config.!pin! Internal!pull-up! 23 GPSMODE7! ! Boot-time!config.!pin! Internal!pull-up! 24 VDDUSB! I! USB!Supply! ! 25 USB_DM! I/O! USB!Data! ! 26 USB_DP! I/O! USB!Data! ! 27 EXTINT0! I! External!Interrupt!Pin! Internal!pull-up! 28 TIMEPULSE! O! Time!pulse!(1PPS)! ! Table 8: Signals and Module Interface ! Attention! The!TxD1,!TxD2!and!TIMEPULSE!are!powered!with!the!VDDIO!pin.! For!more!information!see!the!System Integration Manual for ANTARIS 4![1].! ! LEA-4A!-!Data!Sheet! PRELIMINARY! Electrical Specification! GPS.G4-MS4-05017-P2! ! Page 10! your position is our focus 4 Electrical Specification 4.1 Absolute Maximum Ratings Parameter Symbol Min Max Units Power Supply Power!supply!voltage!(VCC)! Vcc! -0.3! 3.6! V! I/O!supply!voltage!(VDDIO)! Vddio! -0.3! 3.6! V! Backup!battery!voltage!(V_BAT)! Vbat! -0.3! 3.6! V! Input Pins Input!pin!voltage!(all!except!RESET_N)! Vin! -0.3! 5! V! Input!pin!voltage!of!RESET_N! Vin_reset! -0.3! 1.95! V! Input!pin!voltage!VDDUSB! Vin_usb! -0.3! 3.6! V! Input!pin!voltage!USB_DP,!USB_DM! Vin_usbio! -1! 4.6! V! Voltage Supply output for Active Antenna and RF Section VCC_RF!output!current! Iccrf! ! 50! mA! RF Input Antenna!bias!voltage!(applied!via!V_ANT)! Vant! 0! 6! V! Antenna!bias!current!(applied!via!V_ANT)! Iant! ! 100! mA! Input!power!at!RF_IN! (source!impedance!50Ω,!continuous!wave)! Prfin! ! -5! dBm! Environment Storage!temperature! Tstg! -40! 85! °C! Table 9: Absolute Maximum Ratings ! Warning Stressing! the! device! beyond! the! “Absolute!Maximum! Ratings”!may! cause! permanent! damage.! These!are!stress!ratings!only.!The!product!is!not!protected!against!overvoltage!or!reversed!voltages.! If!necessary,!voltage!spikes!exceeding!the!power!supply!voltage!specification,!given!in!table!above,! must!be!limited!to!values!within!the!specified!boundaries!by!using!appropriate!protection!diodes.! ! LEA-4A!-!Data!Sheet! PRELIMINARY! Electrical Specification! GPS.G4-MS4-05017-P2! ! Page 11! your position is our focus 4.2 Operating Conditions Parameter8 Symbol Condition Min Typ Max Units Power Supply Power!supply!voltage!(VCC)! Vcc! ! 2.7! ! 3.3! V! I/O!supply!voltage!(VDDIO)! Vddio! ! 1.65! ! 3.6! V! Power!supply!voltage!ripple! Vcc_PP! ! ! ! 50! mV! Sustained!supply!current!9! Icc! Vcc!=!3.0!V! ! 35! !
本文档为【LEA-4A_Data_Sheet(GPS.G4-MS4-05017)】,请使用软件OFFICE或WPS软件打开。作品中的文字与图均可以修改和编辑, 图片更改请在作品中右键图片并更换,文字修改请直接点击文字进行修改,也可以新增和删除文档中的内容。
该文档来自用户分享,如有侵权行为请发邮件ishare@vip.sina.com联系网站客服,我们会及时删除。
[版权声明] 本站所有资料为用户分享产生,若发现您的权利被侵害,请联系客服邮件isharekefu@iask.cn,我们尽快处理。
本作品所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用。
网站提供的党政主题相关内容(国旗、国徽、党徽..)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
下载需要: 免费 已有0 人下载
最新资料
资料动态
专题动态
is_603339
暂无简介~
格式:pdf
大小:729KB
软件:PDF阅读器
页数:15
分类:互联网
上传时间:2012-11-24
浏览量:29