u-blox AG Zürcherstrasse 68 8800 Thalwil Switzerland www.u-blox.com Phone +41 44 722 7444 Fax +41 44 722 7447 info@u-blox.com LEA-5H, LEA-5S, LEA-5A u-blox 5 GPS and GALILEO Modules Abstract Technical data sheet describing the cost effective, high-performance u-blox 5 based LEA 5 series of GPS/GALILEO modules. Features include A-GPS support, low power consumption, -160 dBm high sensitivity and an innovative jamming-resistant RF architecture. The compact 17.0 x 22.
your position is our focus Title LEA-5H, LEA-5S, LEA-5A Subtitle u-blox 5 GPS and GALILEO Modules Doc Type Data Sheet Doc Id GPS.G5-MS5-07026-P4 Revision Index Date Name Status / Comments P1 17/07/2007 TG Preliminary P2 22/08/2007 TG P3 3/10/2007 TG Update of Tables P4 12/12/2007 TG Update of Pin Diagram Preliminary This document and the use of any information contained therein, is subject to the acceptance of the u-blox terms and conditions. They can be downloaded from www.
your position is our focus 1 Functional Description 1.1 Overview The LEA-5 module series by u-blox sets a new standard for GPS and GALILEO receiver modules. Powered by the high performance 50-channel u-blox 5 technology, these modules provide excellent performance and flexibility at an economical price. A 32-channel acquisition engine with over 1 million effective correlators is capable of massive parallel searches.
your position is our focus 1.3 Block Diagram SPI RF_IN Baseband Processor SAW Filter V_ANT AADET_N Antenna Supervision (optional) RF Front-End with Integrated LNA TCXO or XTAL VCC_RF Digital IF Filter GPS/GALILEO Engine SRAM ROM Code Power Management Backup RAM ARM7 CPU RTC RESET_N CFG_COM1 UART EXTINT TIMEPULSE DDC Power Control VCC_OUT USB V2.0 VDDIO VCC V_BACKUP FLASH EPROM (optional) G ND RTC Figure 1: Hardware Block Schematic 1.
your position is our focus 1.8 Antenna LEA-5 modules are designed for use with passive and active antennas. An optional antenna supervisor is available with the LEA-5H, LEA-5S and LEA-5A. In the default operation mode the antenna supervisor is activated and enables the receiver to detect 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.
your position is our focus 1.9 Configuration 1.9.1 Boot-Time CFG_COM1 Configuration (LEA-5S, LEA-5A) The LEA-5S and LEA-5A provide a CFG_COM1 pin for boot-time configuration. It becomes effective immediately after start-up. Once the module has started, the configuration settings may be modified with UBX configuration messages. The Baudrate can be changed using the CFG-PRT message and the messages can be changed using CFG-MSG. The modified settings remain effective until power-down or reset.
your position is our focus 2 GPS Performance Parameter Specification Receiver Type Time-To-First-Fix 2 Sensitivity Horizontal Position Accuracy 4 Accuracy of Timepulse Signal Max Navigation Update Rate Dynamics Operational Limits Cold Start (Autonomous) Warm Start (Autonomous) Hot Start (Autonomous) Aided Starts 3 Tracking & Navigation Acquisition Cold Start (Autonomous) Autonomous SBAS RMS 50 Channels GPS L1 frequency, C/A Code GALILEO Open Service L1 frequency 29 s 29 s <1 s <1 s -160 dBm -160 dBm
your position is our focus 3 Mechanical Specifications Parameter A B C D E F G H Weight Specification 22.4 +0.6/-0.1mm 17.0 ±0.1mm 3.0 ±0.3mm 2.55 +0.3/-0.1mm 1.1 ±0.1mm 3.80 ±0.1mm 1.10 ±0.1mm 2.85 +0.3/-.01mm 2.
your position is our focus 3.
your position is our focus 4 Electrical Specifications 4.1 Absolute Maximum Ratings Parameter Symbol Min Max Units Power supply voltage (VCC) Vcc -0.5 3.6 V Backup battery voltage (V_BCKP) Vbckp -0.5 4.8 V Input pin voltage Vin -0.5 Vcc +0.5 V Vin_usb -0.5 Vddusb +0.
your position is our focus 4.
your position is our focus 5 Reliability Tests Tests for product family qualifications: Test Standard Visual inspection IPC-A-610 “Acceptability assemblies” I.T.R.I. Publication No. 700 IPC-SM-840B Class 2. IEC 68-2-14 IEC 68-2-1 and IEC 68-2-2 Thermal shock Function at various temperatures Lifespan test Damp heat, cyclic Vibration Shock -40°C...+125°C, 100 cycles -40°C/2 hours; RT/2 hours; +85°C/2 hours; function tests at stable temperature +85°C/1000 hours, in function +25°C...
your position is our focus 7 Default Settings Interface Settings Serial Port 1 Output 9600 Baud, 8 bits, no parity bit, 1 stop bit Configured to transmit both NMEA and UBX protocols, but only following NMEA and no UBX messages have been activated at start-up: GGA, GLL, GSA, GSV, RMC, VTG, TXT USB Output Configured to transmit both NMEA and UBX protocols, but only following NMEA and no UBX messages have been activated at start-up: GGA, GLL, GSA, GSV, RMC, VTG, TXT USB Power Mode: Bus-Powered Serial Po
your position is our focus 8 Ordering Information Ordering No. Product LEA-5A-0 LEA-5A GPS/GALILEO Module, Tape on reel, 250 pieces per reel LEA-5H-0 LEA-5H GPS/GALILEO Module, Tape on reel, 250 pieces per reel LEA-5S-0 LEA-5S GPS/GALILEO Module, Tape on reel, 250 pieces per reel EVK-5H-0 u-blox 5 Evaluation Kit Table 14: Ordering Information Related Documents [1] LEA-5 Hardware Integration Manual, Docu. No GPS.G5-MS5-07005 [2] u-blox 5 Protocol Specification, Docu.
your position is our focus Contact For further info, please contact us: Headquarters u-blox AG Zuercherstrasse 68 CH-8800 Thalwil Switzerland Phone: Fax: E-mail: +41 44 722 74 44 +41 44 722 74 47 info@u-blox.com www.u-blox.com Sales Offices North, Central and South America Europe, Middle East, Africa Asia, Australia, Pacific u-blox America, Inc. 1902 Campus Commons Drive Suite 310 Reston, VA 20191 USA u-blox AG Zuercherstrasse 68 CH-8800 Thalwil Switzerland u-blox Singapore Pte. Ltd.
