GPS Module based on SiRF Star IV™ with EEPROM


The W2SG0084i module is robust, reliable and compact GPS receiver module based on CSR's SiRF Star IV™ architecture, featuring excellent receiver performance. It provides easy, flexible and scalable way for system manufacturers to add GPS positioning, locationing and/or navigation capabilities to their products. This module includes integrated MAC, baseband, RF front-end, LNA, crystal, oscillator, SAW filter and EEPROM to store configuration and application data. It is fully optimized to yield excellent receive sensitivity performance through careful design. It supports UART host interface. It is certified for global markets and supports full operation in industrial operating temperature range.


  • Small footprint: 11.2 mm x 12 mm x 2.2 mm
  • Compact, robust, reliable design for easy integration
  • GPS Technology based on SiRF Star IV™ architecture
  • Support for SBAS (WAAS, EGNOS, MSAS, GAGAN)
  • Protocols for output data: NMEA and OSP
  • Support for UART, I2C and SPI host interfaces
  • Global certifications available: FCC, IC, CE
  • Excellent receiver sensitivity up to -163 dBm
  • Single power supply operation, 1.8V DC
  • Very low power consumption
  • Optimized RF and electrical design
  • Supports industrial temperature range operation

Block Diagram
  • FCC
  • IC
  • CE
  • IoT (Internet of Things)
  • M2M (Machine-to-Machine)
  • Personal navigation devices
  • Health and fitness monitoring devices
  • Mobile internet devices, smart phones
  • Gaming systems
  • Asset tracking, Logistics handhelds
  • Personnel locators, tags
  • Drones, UAVs
  • POS terminals, Logistics management terminals
  • Smart homes


Single RF input
Satellite Constellations Supported: GPS
Number of track verification channels: 48
Default boot-up Baud Rate: 4800 bps over NMEA
Maximum Update Rate: 5 Hz
Maximum Altitude: < 60,000 feet
Maximum Velocity: < 1,000 knots
Maximum Receive Sensitivity: -163 dBm
Horizontal positioning accuracy: Autonomous: < 2.5 meters (24 hr static @ -130 dBm)
Velocity accuracy @ 30 m/s: Speed: < 0.01 m / s
Heading: < 0.01В°
TTFF @ -130 dBm: Hot start: < 1 s
Warm start: < 35 s
Cold start: < 35 s
Receive Sensitivity: Acquisition: -147 dBm
Tracking: -163 dBm
Navigation: -160 dBm


Document File Version Size Last Updated
Product Brief W2SG0084i_Product_Brief.pdf 1.1 633 KB 10/19/2011
Data Sheet W2SG0084i_Datasheet.pdf 1.70 1 MB 11/03/2015


Part Order Number Description Antenna Operating Temperature Auto-Start Baud-Rate Packaging Type Buy from Distributor
W2SG0084i-B-T Module External (-40°C to +85°C) No 9600 bps Tray Buy Now
W2SG0084i-B1-T Module External (-40°C to +85°C) No 4800 bps Tray Buy Now
W2SG0084i-B2-T Module External (-40°C to +85°C) Yes 9600 bps Tray Buy Now
W2SG0084i-B4-T Module External (-40°C to +85°C) Yes 4800 bps Tray Buy Now