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Sierra Wireless AirPrime XS1110 Product Technical Specification

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AirPrime XS1110
Product Technical Specification
41113354
Rev 4.0

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Summary of Contents for Sierra Wireless AirPrime XS1110

  • Page 1 AirPrime XS1110 Product Technical Specification 41113354 Rev 4.0...
  • Page 2 Although significant delays or losses of data are rare when wireless devices such as the Sierra Wireless product are used in a normal manner with a well-constructed network, the Sierra Wireless product should not be used in...
  • Page 3 Preface Patents This product may contain technology developed by or for Sierra Wireless Inc. This product is manufactured or sold by Sierra Wireless Inc. or its affiliates under one or more patents licensed from MMP Portfolio Licensing. Copyright © 2020 Sierra Wireless. All rights reserved.
  • Page 4 Product Technical Specification Revision Release date Changes number April 08, 2020 Added Appendix - Abbreviations Minor text edits Added SGE duration under on page 9 Under PVT Logger Function on page 9: • Removed valid and checksum • Changed internal to external •...

  • Page 5: Table Of Contents

    Contents Function Description ............7 Overview .
  • Page 6 Product Technical Specification VTG—Course and Speed Information Relating to the Ground ......29 ZDA—Time and Date ............30 PSWIRAW—Raw Measurement Data .

  • Page 7: Function Description

    1: Function Description Note: See Appendix - Abbreviations for the full meaning of abbreviations in this guide. Overview The XS1110 is a receiver that is capable of tracking GPS and GLONASS systems simultaneously. This module provides an external antenna interface that supports passive GNSS antennas.

  • Page 8: Precautions

    Product Technical Specification Precautions Important: Please read carefully before you start. If you use the GNSS receiver inside buildings, tunnels, or beside any huge objects, the GNSS signals might be cut off or weakened. Please do not assume the receiver has malfunctioned. This document provides the necessary guidelines for a successful system design using the XS1110 module.

  • Page 9: 1Pps

    Function Description 1PPS The XS1110 generates a one pulse-per-second signal (1PPS) after 3D fixed. It is an electrical signal which precisely indicates the start of a second within an accuracy of 25 ns. The PPS signal is provided through a designated output pin for additional applications.

  • Page 10: Low Power Tracking

    Product Technical Specification Low Power Tracking Figure 1-3: Power Consumption in Low Power Tracking When low power tracking of XS1110 is enabled, in the beginning, it keeps receiving a GNSS navigation message. This GNSS navigation message is continually received for about 12 minutes and 30 seconds and includes the ephemeris, almanac, and satellite health in open sky.
  • Page 11 Function Description Figure 1-4: Low Power Tracking Behavior Figure 1-5: 1PPS Output Types Rev 4.0 Jul.20 41113354...

  • Page 12: Specifications

    2: Specifications Mechanical Dimensions Dimension: (Unit: mm, Maximum height: 2.3) Figure 2-1: Mechanical Dimensions Pin Configuration Figure 2-2: Pin Configuration Rev 4.0 Jul.20 41113354...

  • Page 13: Pin Dimension

    Specifications Pin Dimension Figure 2-3: Pin Dimension Pin Assignment Table 2-1: Pin Assignment Active Reset Low / Voltage Recommendation Name Description and Note High Domain State for Unused Pad Ground Mandatory connection RF_IN GNSS RF signal input Mandatory connection Ground Mandatory connection Ground Mandatory connection...

  • Page 14: Description Of I/O Pins

    Product Technical Specification Table 2-1: Pin Assignment (Continued) Active Reset Low / Voltage Recommendation Name Description and Note High Domain State for Unused Pad TX0 / Serial data output for 1.8V Mandatory connection I2C_SCL NMEA output (TTL) / I2C series clock (in slave mode) RX0 / Serial data output for 1.8V...
  • Page 15 Specifications Pin10: BOOT MODE • Table 2-3: BOOT MODE Pin Setting Mode Function Normal (Floating) The module automatically enters normal mode by default. BootROM (Pull high) Enter Boot ROM mode to upgrade by firmware using these steps, when the module does not work normally or the upgrade fails: The WAKEUP pin must be initially connected to “VCC”.

  • Page 16: Specifications

    Product Technical Specification Table 2-4: NRESET Level Level Min (V) Typ (V) Max (V) High (default) Pin16: WAKE UP • Active on High will wake the module up from power-saving mode. Table 2-5: WAKEUP Level Level Min (V) Typ (V) Max (V) Low (default) High...

  • Page 17: Absolute Maximum Ranges

    Specifications Table 2-6: Specification Data (Continued) Description Velocity Maximum 138 m/s Acceleration Maximum 1.5 G Update Rate 1 Hz Baud Rate 115200 bps (default) Power Supply VCC: 1.71 V to 1.89 V (typical: 1.8 V) Current Consumption GPS and GLONASS, GPS and Galileo, or GPS and BEIDOU: @ 1.8 V,1 Hz Update Rate Acquisition: 15 mA / 18 mA / 22 mA (minimum / typical / maximum) Tracking: 12 mA / 15 mA / 22 mA (minimum / typical / maximum)

  • Page 18: Protocols

    3: Protocols NMEA Output Sentences Table 3-1 lists all NMEA output sentences specifically developed and defined by Sony. Table 3-1: Position Fix Indicator Option Description Time, position and fix type data. GNSS receiver operating mode, active satellites used in the position solution and DOP values.

  • Page 19: Gga-Time, Position And Related Data Of Navigation Fix

    Protocols GGA—Time, Position and Related Data of Navigation Fix Table 3-3 explains the sentence below. GPS satellite or GPS and GLONASS satellites: $GPGGA,185942.00,3732.999923,N,12658.999901,E,1,12,0.7, -18.1,M,18.3,M,x.x,xxxx*79 Table 3-3: GGA Data Format Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning...
  • Page 20 Product Technical Specification Table 3-4: Position Fix Indicator Value Description Fix not available GPS Fix Differential GPS Fix Rev 4.0 Jul.20 41113354...

  • Page 21: Gll-Geographic Position-Latitude / Longitude

    Protocols GLL—Geographic Position—Latitude / Longitude Table 3-5 explains the sentence below: $GNGLL,2459.9354,N,12127.4428,E,080115.00,A,A*76 Table 3-5: GLL Data Format Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning GQ: Using only QZSS for positioning GN: Using combined satellite systems for positioning...

  • Page 22: Gns-Gnss Fixed Data

    Product Technical Specification GNS—GNSS Fixed Data Table 3-6explains the sentence below: $GNGNS,080003.00,2459.9340,N,12127.3997,E,AN,06,2.5,29.0,M,1 7.0,M, x.x, xxxx,V*1D Table 3-6: GNS Data Format Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning GQ: Using only QZSS for positioning GN: Using combined satellite systems for positioning...
  • Page 23 Protocols GSA—GNSS DOP and Active Satellites, Including GPS (GPGSA), GPS, and GLONASS (GNGSA) Table 3-7 explains the sentence below. GPS satellite: $GPGSA,A,3,01,03,06,09,11,12,17,19,23,28,,,1.6,0.9,1.2,1*29 GPS and GLONASS satellites: $GNGSA,A,3,02,05,15,20,21,24,29,30,,,,,1.5,0.8,1.3,1*33 $GNGSA,A,3,67,76,77,83,,,,,,,,,1.5,0.8,1.3,2*37 Table 3-7: GSA Data Format for NMEA v4.10 Name Example Units Description Header Talked ID GP: Using only GPS for positioning...
  • Page 24 Product Technical Specification Table 3-8: Mode 1 Value Description Manual—forced to operate in 2D or 3D mode 2D Automatic—allows switching to 2D/3D mode automatically Table 3-9: Mode 2 Value Description Fix not available 2D (<4 SVs used) 3D (≥4 SVs used) Table 3-10: Satellite ID Version GLONASS...

  • Page 25: Gsv-Satellites In View

    Protocols GSV—Satellites in View Table 3-12 explains the sentences below. GPS satellite: $GPGSV,4,1,14,6,67,28,47,2,53,299,45,17,39,135,45,12,35,283, 43,1*5C GLONASS satellite: $GLGSV,2,1,07,1,64,188,27,8,60,41,33,23,44,12,34,22,30,88,41 ,2*40 QZSS satellite: $GQGSV,1,1,02,01,58,118,32,03,68,060,32,,,,,,,,,0*69 Table 3-12: GPGSV Data Format for NMEA v4.10 Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning...
  • Page 26 Product Technical Specification Table 3-13: Satellite ID Version GLONASS QZSS 4.10 01 –32 65–88 193-201 Table 3-14: Signal ID System GLONASS Galileo BeiDou QZSS Rev 4.0 Jul.20 41113354...

  • Page 27: Rmc-Recommended Minimum Navigation Information

    Protocols RMC—Recommended Minimum Navigation Information Table 3-15 explains the sentence below. GPS satellite: $GPRMC,151907.00,A,3733.000087,N,12659.000097,E,0.0,0.0, 050718,,,A,V*28 GPS and GLONASS satellites: $GNRMC,054403.00,A,2305.766823,N,12017.027308,E,0.2,231.1, 100719,,,A,V*30 Table 3-15: RMC Data Format for NMEA v4.10 Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning...
  • Page 28 Product Technical Specification Table 3-15: RMC Data Format for NMEA v4.10 Name Example Units Description Mode A: Autonomous mode D: Differential mode E: Dead reckoning mode N: Data not valid Navigation Status S: Safe C: Caution U: Unsafe V: Invalid NMEA v4.10 and above only Checksum <CR>...

  • Page 29: Vtg-Course And Speed Information Relating To The Ground

    Protocols VTG—Course and Speed Information Relating to the Ground Table 3-16 explains the sentence below. GPS satellite: $GPVTG,165.48,T,,M,0.03,N,0.06,K,A*37 GPS and GLONASS satellites: $GNVTG,0.0,T,,M,0.0,N,0.0,K,A*13 Table 3-16: VTG Data Format Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning...

  • Page 30: Zda-Time And Date

    Product Technical Specification ZDA—Time and Date Table 3-17 explains the sentence below. GPS satellite: $GPZDA,151907.00,05,07,2018,,*64 GPS and GLONASS satellites: $GNZDA,000024.00,06,01,1980,,*79 Table 3-17: ZDA Data Format Name Example Units Description Header Talker ID GP: Using only GPS for positioning GL: Using only GLONASS for positioning GA: Using only Galileo for positioning BD: Using only BeiDou for positioning GQ: Using only QZSS for positioning...

  • Page 31: Pswiraw-Raw Measurement Data

    Protocols PSWIRAW—Raw Measurement Data Table 3-18 explains the sentence below. $PSWIRAW,084109.00,1,12,30.60,24978488.510,90377.141, -145.3,1,7874433.564,22830620.159,-11452247.121, -64,4302,14.156,4*40 Table 3-18: PSWIRAW Data Format Name Example Units Description Message ID $PSWIRAW PSWIRAW protocol header UTC Time 084109.00 hh [hr ]mm [min] ss.ss [sec] System ID 1: GPS 2: GLONASS 3: Galileo 4: BeiDou,...
  • Page 32 Product Technical Specification Table 3-19: Satellite ID Version GLONASS QZSS 4.10 01 –32 65–88 193-201 Rev 4.0 Jul.20 41113354...

  • Page 33: Nmea Command Protocols

    Protocols NMEA Command Protocols Command Meaning: Execute GNSS startup process Command: AT+GNSSSTART=0 Response: +GNAASTART,OK Mode: 0 = Cold start • 1 = Warm start • 2 = Hot start • Example: Command Response Cold Start: AT+GNSSSTART=0 +GNAASTART,OK Note: Refer to the XS1110 Software User Guide for more details. Rev 4.0 Jul.20 41113354...

  • Page 34: Reference Design

    4: Reference Design This section provides reference schematic designs for best performance. Reference Schematic Design for Using UART and I2C The XS1110 provides several interfaces to process GNSS NMEA data (specified by firmware): 1. UART – this interface can support NMEA output; refer to Figure 4-1.

  • Page 35: Reference Schematic Design For I2C

    Reference Design Reference Schematic Design for I2C Figure 4-2: Reference Schematic Design for I2C Notes: 1. Ferrite bead L1 is added for power noise reduction. Use one with an equiv- alent impedance (600 at 100 MHz; IDC 200 mA). Ω 2.

  • Page 36: Reference Schematic Design For Using Antennas

    2. Place C1 and C2 decoupling capacitors as close to the module as possible. 3. Damping resistors R1 and R2 can be modified based on the system appli- cation for EMI. Contact Sierra Wireless Sales for more information or antenna implementation support. Rev 4.0 Jul.20...

  • Page 37: General Rules For Circuit Design

    5: General Rules for Circuit Design This section provides rules to obtain the best performance when using the XS1110. Power Supply A low ripple voltage and stable power supply is required for the XS1110 to perform optimally. An unstable power source will significantly impact GNSS RF reception performance.

  • Page 38: Uart / I2C Serial Interface

    Product Technical Specification UART / I2C Serial Interface UART (RX / TX) 1. UART is the TTL level interface that carries baud rate at 115200 bps or 460800 bps. 2. Placing a damping resistor in series on the RX and TX trace of the module could reduce noise from the host MCU or high speed digital logics.

  • Page 39: Antenna Compliance Design

    6. It is not necessary for the antenna design to use an active antenna. The module design includes an external LNA that provides enough signal gain. Sierra Wireless recommends the usage of a passive antenna that achieves the best signal performance.

  • Page 40: 1Pps

    Product Technical Specification 1PPS 1PPS signal is an output pulse signal used for timing applications. Its electrical characteristics are: Voltage level: 1.8 V (typical) • Period: 1 s • Accuracy (jitter): +-25 ns • 125 ms pulse width duration • Figure 5-4: 1PPS Signal For signal level shift, when the host system is 3.3 V and the GNSS module is 1.8 V, the host system can control the GNSS module by using a signal level shift...

  • Page 41: Layout Guidelines

    General Rules for Circuit Design Layout Guidelines The following layout guidelines should be followed during the design process. Layout Underneath the Module The XS1110 modules have high receiving sensitivity at around -161 dBm. During hardware integration, try to avoid noise or harmonics in the following bands to prevent unnecessary reception degradation: •...

  • Page 42: Placement

    Product Technical Specification Placement Place the decoupling capacitors for VCC close to the module. • Place the damping resistors for TX / RX close to the module. • Do not place: in proximity to high-speed digital processing circuitry • in proximity to high-current switching power circuitry •...

  • Page 43: Ground Segmentation

    General Rules for Circuit Design Ground Segmentation In general, the separation of ground between the module and the rest of the system is recommended to avoid interference. If this is not possible, it is best to follow these rules: · segmentation of ground between digital and analog system ·...

  • Page 44: Troubleshooting

    6: Troubleshooting Checking the Working Status of the Module To check the working status of the module, first check to see the NMEA sentence output through TX using various application tools. For example, you may use the Windows tool HyperTerminal, or you may use another GNSS application program. Secondly, if there is no NMEA output at the TX pin, this indicates that the module is currently not working.

  • Page 45: Characteristic Impedance Of The Rf Input Line

    7: Characteristic Impedance of the RF Input Line We used the AppCAD tool to simulate 50 Ω impedance for the RF PCB layout. Table 7-1: Antenna Matching RF Line Width (W) PCB FR4 Dielectric Copper Thickness Thickness Parameters per ounce 10 mils 5.6 mils 1.4 mils...

  • Page 46: Uart To Rs232 Interface

    Typically, an RS232 or USB interface is required to connect the PC to the Sierra Wireless GNSS module for communication. Most Sierra Wireless modules use a set of communication ports in TTL-logic. A bridge IC may be needed for RS232 signal conversion.

  • Page 47: Uart To Usb Interface

    9: UART to USB Interface If the Sierra Wireless module you have purchased does not come with a USB interface, it is possible to connect the module to an external USB IC. To further enhance the transferring speed, use one that is capable of USB version 2.0. Once the driver for the chosen USB Bridge IC is successfully installed in Windows or another operating system, the USB Bridge IC will automatically be recognized as a COM port.

  • Page 48: Appendix - Abbreviations

    A: Appendix - Abbreviations Table A-1: Abbreviations Acronym or term Definition AGPS Assisted GPS File Transfer Protocol GLONASS Global Navigation Satellite System Global Positioning System Low Dropout Regulator Long Life Ephemeris Machine to Machine NMEA National Marine Electronics Association Position Velocity Time Quad Flat No-Lead QZSS Quasi-Zenith Satellite System...

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