locate, communicate, accelerate LEA-6 u-blox 6 GPS Modules Data Sheet Abstract Technical data sheet describing the cost effective, high-performance u-blox 6 based LEA-6 series of GPS modules, that bring the high performance of the u-blox 6 position engine to the industry standard LEA form factor. These versatile, stand-alone receivers combine an extensive array of features with flexible connectivity options.
LEA-6 - Data Sheet Document Information Title LEA-6 Subtitle u-blox 6 GPS Modules Document type Data Sheet Document number GPS.G6-HW-09004-E2 Document status Document status information Objective This document contains target values. Revised and supplementary data will be published Specification later. Advance This document contains data based on early testing. Revised and supplementary data will Information be published later. This document contains data from product verification.
LEA-6 - Data Sheet Contents Contents.............................................................................................................................. 3 1 Functional description.................................................................................................. 5 1.1 Overview .............................................................................................................................................. 5 1.2 1.3 Product features ..................................
LEA-6 - Data Sheet 4 Mechanical specifications .......................................................................................... 18 5 Qualification and certification ................................................................................... 19 5.1 5.2 6 Reliability tests .................................................................................................................................... 19 Approvals ......................................................................
LEA-6 - Data Sheet 1 Functional description 1.1 Overview The LEA-6 module series is a family of stand-alone GPS receivers featuring the high performance u-blox 6 positioning engine. These versatile receivers feature an extensive and flexible range of functionality, connectivity and cost savings options. LEA-6 modules maintain the industry standard 17.0 x 22.4mm form factor of the LEA-5 series and have been designed to allow simple migration.
LEA-6 - Data Sheet 1.3 GPS performance Parameter Specification Receiver type 50 Channels GPS L1 frequency, C/A Code GALILEO Open Service capable 1 GLONASS FDMA1 SBAS: WAAS, EGNOS, MSAS Time-To-First-Fix 2 LEA-6H/LEA-6S/ LEA-6T-0/LEA-6T-1 LEA-6A/ LEA-6R 26 s 26 s 1s 1s 27 s 27 s 1s 3s LEA-6H/LEA-6S/ LEA-6T-0/LEA-6T-1 LEA-6A/ LEA-6R Tracking & Navigation Reacquisition Cold Start (without aiding) -162 dBm -160 dBm -148 dBm -162 dBm -160 dBm -147 dBm Max.
LEA-6 - Data Sheet 1.4 Block diagram Figure 1 Block diagram (For available options refer to the product features table in section 1.2.) 1.5 Assisted GPS (A-GPS) Supply of aiding information like ephemeris, almanac, approximate previous position and time, satellite status and an optional time synchronization signal will reduce time to first fix significantly and improve the acquisition 9 sensitivity.
LEA-6 - Data Sheet 1.9 GLONASS The Russian GLONASS satellite system is an alternative system to the US-based Global Positioning System (GPS). LEA-6H modules are GLONASS ready and are capable of receiving and processing GLONASS signals via a firmware upgrade. For more information about GLONASS and implementation see the u-blox GPS Compendium [4] and the GLONASS & GPS HW Designs Application Note [5]. 1.10 Protocols and interfaces Protocol Type NMEA Input/output, ASCII, 0183, 2.3 (compatible to 3.
LEA-6 - Data Sheet 1.10.3 SPI (LEA-6R) LEA-6R includes a Serial Peripheral Interface (SPI) for connecting external sensors. The interface can be operated in SPI master mode only. Two chip select signals are available to select external slaves. LEA-6R default SPI clock is 870 kHz. As LEA-4R default value is 460 kHz, migrating from LEA-4R to LEA-6R will require a bandwidth verification of the SPI circuits. 1.10.
LEA-6 - Data Sheet 1.11.3 Eco Mode During a Cold start, a receiver in Eco Mode works exactly as in Maximum Performance Mode. Once a position can be calculated and a sufficient number of satellites are being tracked, the acquisition engine is powered off resulting in significant power savings. The tracking engine continuously tracks acquired satellites and acquires other available or emerging satellites. Note that even if the acquisition engine is powered off, satellites continue to be acquired. 1.11.
LEA-6 - Data Sheet 1.14 Dead Reckoning (LEA-6R) LEA-6R receivers supplement the GPS information with an incoming signal from a gyroscope (turn rate sensor) and odometer pulses to do dead reckoning navigation through periods of poor GPS reception. Depending on the quality of the available GPS signals, the LEA-6R uses an algorithm specially developed by u-blox in order to compute the next positions accurately by using an automatically weighted average of the GPS and sensor inputs.
LEA-6 - Data Sheet 1.15 Precision Timing & Raw Data (LEA-6T) Timing and Raw data features are available in two Module versions, the LEA-6T-0 and the LEA-6T-1. Both are pin-compatible Modules. The LEA-6T-1 includes an internal Flash memory for firmware updates. 1.15.1 Time mode LEA-6T provides a special Time Mode to provide higher timing accuracy. The LEA-6T is designed for use with stationary antenna setups.
LEA-6 - Data Sheet 2 Pin Definition 2.1 Pin assignment 28 27 26 25 24 23 22 21 20 19 18 17 16 15 10 11 12 13 14 LEA-6 Top View 1 2 3 4 5 6 7 8 9 Figure 2 LEA-6 Pin Assignement Pin Nr.
LEA-6 - Data Sheet Pin Nr.
LEA-6 - Data Sheet 3 Electrical specifications 3.1 Absolute maximum ratings Parameter Symbol Min Max Units Power supply voltage VCC Condition -0.5 3.6 V Backup battery voltage USB supply voltage V_BCKP VDDUSB -0.5 -0.5 3.6 3.6 V V Input pin voltage Vin Vin_usb -0.5 -0.5 3.
LEA-6 - Data Sheet 3.2 Operating conditions All specifications are at an ambient temperature of 25°C. Parameter Symbol Module Min Typ Max Units Power supply voltage Supply voltage USB VCC VDDUSB All All 2.7 3.0 3.0 3.3 3.6 3.6 V V Backup battery voltage Backup battery current V_BCKP I_BCKP All All 1.4 3.6 V µA Input pin voltage range Digital IO Pin Low level input voltage Vin Vil All All 0 0 VCC 0.
LEA-6 - Data Sheet 3.3 Indicative power requirements Table 13 lists examples of the total system supply current for a possible application. Parameter Peak supply current Symbol 11 Iccp All Icc Acquisition All Icc Tracking (Max Performance mode) Average supply current 12 Module Icc Tracking (Eco mode) Icc Tracking 15 (Power Save Mode) LEA-6H / LEA-6S / LEA-6T LEA-6A/ LEA-6R LEA-6H / LEA-6S / LEA-6T LEA-6A/ LEA-6R LEA-6S LEA-6H LEA-6A Min Typ Max Units 67 Condition mA VCC = 3.
LEA-6 - Data Sheet 4 Mechanical specifications Figure 3: Dimensions For information regarding the Paste Mask and Footprint see the LEA-6/NEO-6/MAX-6 Hardware Integration Manual [1]. GPS.
LEA-6 - Data Sheet 5 Qualification and certification 5.1 Reliability tests All LEA-6 modules are based on GPS chips qualified according to AEC-Q100. Tests for product family qualifications according to ISO 16750 "Road vehicles - Environmental conditions and testing for electrical and electronic equipment”, and appropriate standards (see Table 14). Test Reference Test Conditions Temperature step test ISO16750-4 IEC60068-2-1 IEC60068-2-2 Function tests at stable temperature.
LEA-6 - Data Sheet 6 Product handling & soldering 6.1 Packaging LEA-6 modules are delivered as hermetically sealed, reeled tapes in order to enable efficient production, production lot set-up and tear-down. For more information about packaging, see the u-blox Package Information Guide [3]. Figure 4: Reeled u-blox modules 6.1.1 Reels LEA-6 GPS modules are deliverable in quantities of 250pcs on a reel. LEA-6 modules are delivered using reel Type B as described in the u-blox Package Information Guide [3].
LEA-6 - Data Sheet 6.1.2 Tapes Figure 5 shows the position and orientation of LEA-6 modules as they are delivered on tape. The dimensions of the tapes are specified in Figure 6. Figure 5: Orientation for LEA-6 modules on tape Figure 6: LEA tape dimensions (mm) GPS.
LEA-6 - Data Sheet 6.2 Moisture Sensitivity Levels LEA-6 modules are Moisture Sensitive Devices (MSD) in accordance to the IPC/JEDEC specification. LEA-6 modules are rated at MSL level 4. For more information regarding moisture sensitivity levels, labeling, storage and drying see the u-blox Package Information Guide [3]. For MSL standard see IPC/JEDEC J-STD-020, which can be downloaded from www.jedec.org. 6.
LEA-6 - Data Sheet 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 (in addition to the 6 standard NMEA messages the LEA-6T includes ZDA).
LEA-6 - Data Sheet 8 Labeling and ordering information 8.1 Product labeling The labeling of u-blox 6 GPS modules includes important product information. The location of the product type number is shown in Figure 7. Product type number PPP-GV-T-XXX Figure 7: Location of product type number on u-blox 6 module label 8.2 Explanation of codes 3 different product code formats are used.
LEA-6 - Data Sheet 8.3 Ordering information Ordering No.
LEA-6 - Data Sheet Contact For complete contact information visit us at www.u-blox.com u-blox Offices North, Central and South America u-blox America, Inc. Phone: E-mail: +1 703 483 3180 info_us@u-blox.com Technical Support: +1 703 483 support_us@u-blox.com Asia, Australia, Pacific u-blox AG Phone: E-mail: Support: Phone: E-mail: Support: Regional Office West Coast: Phone: +1 408 573 3640 E-mail: info_us@u-blox.
