Concurrent GNSS Receivers



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
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



Docs & Downloads for A5100-A

Order Information & Part Numbers for A5100-A

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