SAM-M8Q Easy-to-use u-blox M8 GNSS antenna module Data Sheet Smart antenna module for easy and reliable integration Easy to design-in with no RF expertise required Consistently strong performance regardless of installation High accuracy thanks to concurrent reception of up to 3 GNSS (GPS, Galileo, GLONASS) Tiny form factor 15.5 x 15.5 x 6.3 mm Embedded wide-band patch antenna Surface-mount device, enabling simple and automated manufacturing www.u-blox.
SAM-M8Q - Data Sheet Document Information Title SAM-M8Q Subtitle Easy-to-use u-blox M8 GNSS antenna module Document type Data Sheet Document number UBX-16012619 Revision and Date R04 Document status Production Information 24-Oct-2017 Document status explanation Objective Specification Document contains target values. Revised and supplementary data will be published later. Advance Information Document contains data based on early testing.
SAM-M8Q - Data Sheet Contents Contents.............................................................................................................................. 3 1 Functional description.................................................................................................. 5 1.1 Overview .............................................................................................................................................. 5 1.2 1.3 Product features ................................
SAM-M8Q - Data Sheet 1.19 Embedded Antenna ........................................................................................................................ 13 1.19.1 Embedded antenna operation ..................................................................................................... 13 2 Pin Definition .............................................................................................................. 14 2.1 Pin assignment ....................................................
SAM-M8Q - Data Sheet 1 Functional description 1.1 Overview The u-blox concurrent SAM-M8Q GNSS patch antenna module benefits from the exceptional performance of the u-blox M8 multi-GNSS engine. The SAM-M8Q module offers high sensitivity and minimal acquisition times in an ultra compact form factor.
SAM-M8Q - Data Sheet 1.3 Performance Parameter Specification Receiver type 72-channel u-blox M8 engine GPS L1C/A, SBAS L1C/A, QZSS L1C/A, QZSS L1 SAIF, GLONASS L1OF, Galileo E1B/C Accuracy of time pulse signal RMS 99% Frequency of time pulse signal Operational limits 1 0.25 Hz…10 MHz (configurable) Dynamics 4g Altitude 50,000 m Velocity 500 m/s Velocity accuracy 2 Heading accuracy 0.05m/s 2 0.3 degrees GNSS Horizontal position accuracy GPS & GLONASS GPS GLONASS Galileo 2.5 m 2.
SAM-M8Q - Data Sheet 1.4 Block diagram Figure 1: SAM-M8Q block diagram 1.5 Supported GNSS Constellations The SAM-M8Q GNSS module is a concurrent GNSS receiver which can receive and track multiple GNSS systems: GPS, Galileo and GLONASS. Owing to the dual-frequency RF front-end architecture, GLONASS can be processed concurrently with GPS and Galileo signals, thus providing reception of three GNSS systems.
SAM-M8Q - Data Sheet number (k = –7,..., 5, 6). The ability to receive and track GLONASS L1OF satellite signals allows for the design of GLONASS receivers where required by regulations. To take advantage of GPS and GLONASS, dedicated hardware preparation must be made during the design-in phase. See the SAM-M8Q Hardware Integration Manual [1] for u-blox design recommendations. 1.5.3 Galileo The SAM-M8Q GNSS patch antenna module can receive and track the E1-B/C signals centered on the GPS L1 frequency band.
SAM-M8Q - Data Sheet No connectivity required Compatible with AssistNow Online and Offline (can work stand-alone, or in tandem with these services) No integration effort; calculations are done in the background, transparent to the user. The u-blox ROM-based SAM-M8Q receiver can use AssistNow Autonomous to calculate GPS only orbit predictions for 3 days. For more details on A-GNSS, see the u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [2]. 1.7 Augmentation Systems 1.7.
SAM-M8Q - Data Sheet IMES. The receiver also makes available the tracked satellite signal information, i.e. raw code phase and Doppler measurements in a form aligned to the Radio Resource LCS Protocol (RRLP) [6]. For more details, see the u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [2]. 1.9 Odometer The odometer function provides information on travelled ground distance (in meters) based on the position and Doppler-based velocity output from the navigation solution.
SAM-M8Q - Data Sheet For time aiding, hardware time synchronization can be achieved by connecting an accurate time pulse to the EXTINT pin. Frequency aiding can be implemented by connecting a periodic rectangular signal with a frequency up to 500 kHz and arbitrary duty cycle to the EXTINT pin. (The low/high phase duration of the cycle must not be shorter than 50 ns.) Provide the applied frequency value to the receiver using UBX messages. 1.
SAM-M8Q - Data Sheet 1.17 Clock generation 1.17.1 Oscillators The SAM-M8Q GNSS patch module comes with TCXO. The TCXO allows accelerated weak signal acquisition, enabling faster start and reacquisition times. TCXO used on the SAM-M8Q module is carefully selected and screened for stability and against frequency perturbations across the full operating range (–40 °C to +85 °C).
SAM-M8Q - Data Sheet The entire Almanac has been downloaded The Ephemeris for each satellite in view is valid 1.18.4 Power Save Mode For specific power saving applications outside the typical preset power mode setups, users can configure a tailored Power Save Mode. Power Save Mode provides two dedicated methods, ON/OFF and Cyclic tracking, that reduce average current consumption in different ways to match the needs of the specific application.
SAM-M8Q - Data Sheet 2 Pin Definition 2.
SAM-M8Q - Data Sheet 3 Configuration management Configuration settings can 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, then the modified configuration will be retained, as long as the backup battery supply is not interrupted. 4 Electrical specification The limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134).
SAM-M8Q - Data Sheet 4.2 Operating conditions All specifications are at an ambient temperature of +25 °C. Extreme operating temperatures can significantly impact specification values. Applications operating near the temperature limits should be tested to ensure the specification. Parameter Symbol Min Typical Max Units Power supply voltage Backup battery voltage VCC, VCC_IO V_BCKP 2.7 1.4 3.0 3.6 3.
SAM-M8Q - Data Sheet Input pin voltage range Digital IO Pin Low level input voltage Vin Vil 0 0 VCC_IO + 0.5 0.2*VCC_IO V V Digital IO Pin High level input voltage Digital IO Pin Low level output voltage Vih Vol 0.7*VCC_IO VCC_IO + 0.5 0.4 V V Iol = 4 mA Digital IO Pin High level output voltage Voh VCC_IO – 0.
SAM-M8Q - Data Sheet 5 Mechanical specifications Figure 3: Dimensions For information about the paste mask and footprint, see the SAM-M8Q Hardware Integration Manual [1].
SAM-M8Q - Data Sheet 6 Reliability tests and approvals 6.1 Reliability tests SAM-M8Q module is based on AEC-Q100 qualified GNSS chips. Tests for product qualification are according to ISO 16750 "Road vehicles – environmental conditions and testing for electrical and electronic equipment”, and appropriate standards 6.
SAM-M8Q - Data Sheet 7 Product handling & soldering 7.1 Packaging SAM-M8Q module is delivered as hermetically sealed, reeled tapes in order to enable efficient production, production lot set-up and tear-down. For more information see the u-blox Package Information Guide [3]. 7.1.1 Reels The SAM-M8Q GNSS patch antenna module is deliverable in quantities of 250 pcs on a reel. The SAM-M8Q modules are shipped on Reel Type A, as specified in the u-blox Package Information Guide [3]. 7.1.
SAM-M8Q - Data Sheet 7.2.1 Moisture Sensitivity Levels The Moisture Sensitivity Level (MSL) relates to the packaging and handling precautions required. The SAM-M8Q modules are rated at MSL level 4. For MSL standard see IPC/JEDEC J-STD-020, which can be downloaded from www.jedec.org. For more information regarding MSL see the u-blox Package Information Guide [3]. 7.2.2 Reflow soldering Reflow profiles are to be selected according u-blox recommendations (see the SAM-M8Q Hardware Integration Manual [1]). 7.
SAM-M8Q - Data Sheet 8 Default messages Interface Settings UART Output 9600 Baud, 8 bits, no parity bit, 1 stop bit Configured to transmit both NMEA and UBX protocols, but only the following NMEA (and no UBX) messages have been activated at start-up: GGA, GLL, GSA, GSV, RMC, VTG, TXT 9600 Baud, 8 bits, no parity bit, 1 stop bit, Autobauding disabled Automatically accepts following protocols without need of explicit configuration: UBX, NMEA, RTCM The GNSS receiver supports interleaved UBX and NMEA messag
SAM-M8Q - Data Sheet 9 Labeling and ordering information 9.1 Product labeling The labeling of the u-blox SAM-M8Q GNSS patch antenna module includes important product information. The location of the SAM-M8Q product type number is shown in Figure 5. Figure 5: Location of product type number on u-blox SAM-M8Q module label 9.2 Explanation of codes Three different product code formats are used.
SAM-M8Q - Data Sheet Related documents [1] [2] SAM-M8Q Hardware Integration Manual, Doc. No. UBX-16018358 u-blox 8 / u-blox M8 Receiver Description including Protocol Specification (public version), Doc. No. UBX-13003221 [3] [4] u-blox Package Information Guide, Doc. No. UBX-14001652 RTCM 10402.3 Recommended Standards for Differential GNSS, Ver. 2.3, RTCM AUG. 20, 2001 [5] Power Management Application Note, Doc. No. UBX-13005162 [6] Radio Resource LCS Protocol (RRLP), (3GPP TS 44.031 version 11.0.
SAM-M8Q - 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: +1 703 483 3180 E-mail: info_us@u-blox.com Regional Office West Coast: Phone: +1 408 573 3640 E-mail: info_us@u-blox.com Technical Support: Phone: E-mail: Headquarters Europe, Middle East, Africa u-blox AG Phone: +41 44 722 74 44 E-mail: info@u-blox.com Support: support@u-blox.com Documentation Feedback E-mail: docsupport@u-blox.
