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LR9130(SiRF STAR 4E/Flash)

LR9130 is a SiRFstarIV solution(Flash Type), which is the same form factor and pin to pin compatible with LR9548SX. With flexible interface options, including UART, I2C, and SPI, the LR9130 can meet different needs in terms of design perspective. The LR9130 can be used in AVL, Notebook, and stationary devices.

The Leadtek LR9130 GPS module is a high sensitivity, low power, Surface Mount Device (SMD). This 48-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the GPS signal search capabilities of the SiRFstarIV™ single chipset, SiRF's newest chipset technology.



  • Based on the high performance features of the SiRFstarlV single chip
  • Compact module size for easy integration:
    24x20x2.9 mm with build-in LNA.
  • Fully automatic assembly: reflow solder assembly ready
  • Hardware compatible with SIRF GSW4 software
  • Embedded CGEE that can capture ephemeris data from Satellites locally and predicts ephemeris out to 3 days
  • RoHS compliant
  • RF Metal Shield for best performance In noisy environments
  • Support MEMS sensors through IC interface
  • UART/IC/SPI for GPS communications interface
  • Protocol: NMEA-0183/SiRF Binary (default NMEA)
  • Baud Rate: 4800, 9600, 19200, 38400 or 57600 bps (default 4800)
  • Support SiRFaware technoiGgy and ‘Micro PowerrController” power management mode
  • Suitable for battery drive device applications that needs lower power consumption

Feature Content Description
Chipset GSD4e SiRFstarIV low power single chipset
General Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 48
Sensitivity -163dB
Accuracy Position
< 2.5 meters  
0.01 meters/second
Time 1 microsecond synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum
Time to First Fix
(TTFF -122dBm)
(Open Sky &
Stationary Requirements)
Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 1 ~ 2 sec.
Warm start 9 ~ 15 sec.
Cold start 25 ~ 35 sec.
Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g, max.
Jerk 20 meters/second3, max.
Power Main power input 2.8 ~ 5.0 VDC input
Power Consumption 50mA (Tracking Mode)
Backup Power 2.8 ~ 5.0 VDC battery input
Serial Port Electrical interface
Protocol messages
Default UART:NMEA-0183@4800bps
Physical Characteristics Dimension 24x20x2.9mm
Environmental Characteristics Operating temperature range -40 °C to +85 °C

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  • Above product spec is for reference only, actual spec rely on the real product and Leadtek keeps the right to alter. Each sales region will impacts the product difference, please contact your supplier for making sure the actual product information.
  • The adapter, cable and software listed on the web page are for reference only and Leadtek keeps the right to alter, revised information won't be noticed.
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