The A5100-A is a high-sensitivity concurrent GNSS receiver that integrates Qualcomm’s SiRFstarV technology into a single, compact and easy to integrate SMT device.

By supporting simultaneous GLONASS, GPS, QZSS and SBAS measurements with the industry’s best sensitivity engine, the highest accuracy, ground tracks and fastest time-to-first-fix (TTFF) are ensured even under tough operating conditions.

Product Highlights

  • Concurrent GNSS receiver
  • Pin-to-pin compatible with A2200 A
  • Lowest tracking power consumption
  • Download SiRF Live



    Overview for A5100-A


    Concurrent GNSS receiver

    The A5100-A will track and follow GPS and GLONASS systems concurrently. Dual reception of GPS and BeiDou or even concurrent GLONASS and BeiDou reception is still possible by setting up the parameters. Our fine tuned signal reception and sophisticated software algorithms improve availability and accuracy in urban canyon environments.

    Pin-to-pin compatible with A2200-A

    This A5100-A is pin-to-pin compatible with the Lantronix A2200-A. Power, ground and dedicated pins are at the same location across device densities in order to adapt to your current design.

    Lowest tracking power consumption

    SiRFaware’s advanced low power management modes, high level of integration and multiple communication ports in a small form-factor makes the A5100-A suitable for a broad spectrum of GNSS applications where performance, cost and time to market are prime considerations.

    Download SiRF Live

    Test the performance of Maestro GNSS receivers and develop your application with SiRF Live software. Download here

      Features & Specifications for A5100-A

      Channels 52
      Frequency LI – 1,575 MHz
      Sensitivity1 GPS GLONASS
      Tracking – 165 dBm – 163 dBm
      Navigation – 160 dBm – 159 dBm
      Acquisition (cold start) – 147 dBm
      Position Accuracy2) (horizontal) < 2.5 m CEP (autonomous)

      < 2.0 m CEP SBAS

      Time To First Fix
      Hot Start2) < 1 s
      Warm Start2) < 30 s
      Cold Start2) < 35 s
      Update Rate 1 Hz / 5 Hz Supported
      UART – OSP
      SiRFbinary protocol Protocol for SiRFstar product family up to SSIII
      Open Socket Protocol Protocol extension for SiRFstarV
      Baud rate Switchable 115.2k (default) 1,200 to 115.2k
      Ports Tx (Binary output) Rx (Binary input)
      UART – NMEA (default)
      NMEA message Switchable GGA, RMC, GSA, GSV, VTG, GLL, ZDA
      Baud rate Switchable 1,200 to 115.2k

      Default 9600

      Ports Tx (NMEA output) Rx (NMEA input)
      SiRFnavTM High availability and coverage; improved TTFF in weak signal environments
      SiRFawareTM Keeps module in a state of readiness for rapid navigation (hot start)
      Jammer remover technology Detects and removes up to 8 in-band jammers with minimal loss of sensitivity
      A-GPS Embedded Extended Ephemeris (SiRFInstantFix) and Ephemeris Push support
      MEMS I2C interface Prepared to use additional sensor information for improved navigation
      Supply voltage 3.0 to 3.6 VDC
      Average Current Draw (typical)
      Full power mode (Searching) Peak Current 40mA
      Full power mode (Searching) Average Current 37mA
      Full power mode (Tracking) Average Current 31mA
      Micro Power Mode (SiRFawareTM) 300uA
      Hibernate Status 180uA
      L x W x H 15 x 10.2 x 2.5 mm
      L x W x H 0.59” x 0.4” x 0.1”
      Weight 1.2 g / 0.04 oz.
      Operating -40°C to +85°C
      Storage -40°C to +85°C
      Humidity Non condensing



    Order Information & Part Numbers for A5100-A

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    GNSS A2235H - SiRFstarIV-based 48-channel GPS receivers built-in patch antenna, -148 dBm acquisition sensitivity, -160 dBm navigation sensitivity, I²C MEMS interface

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    A5100A A5100-A-V521 GNSS

    GNSS A5100A - SiRFstarV-based 52-channel GNSS receiver, -147 dBm acquisition sensitivity, -160 dBm navigation sensitivity, I²C MEMS interface

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    A5135H A5135-H-V577 GNSS

    GNSS A5135H - SiRFstarV-based 52-channel GNSS receiver built-in patch antenna, -147 dBm acquisition sensitivity, -160 dBm navigation sensitivity, I²C MEMS interface

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    Lantronix Part # Legacy Part # Name Description Order Now