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LEA-4T

ANTARIS® 4 Programmable GPS Module with Precision Timing

Infrastructure Applications

 LEA-4T GPS Module

RoHS compliant
17 x 22.4 mm

The LEA-4T, supporting precision GPS timing and raw measurement data for demanding positioning applications, provides high sensitivity, exceptionally low power consumption and USB connectivity.

The LEA-4T features a Time Mode function whereby the GPS receiver assumes a stationary 3D position, whether programmed manually or determined by an initial self-survey. Stationary operation enables GPS timing with only one visible satellite and eliminates timing errors which otherwise result from positioning errors. The accuracy of the time pulse is as good as 50 ns, synchronized to GPS or UTC time. An accuracy of 15 ns is achievable by using the quantization error information to compensate the granularity of the time pulse. The built-in 2-channel time mark and counter unit provides precise time measurement of external signals (EXTINT0 and 1).

The LEA-4T also supports raw measurement data (carrier phase with half-cycle ambiguity resolved, code phase and Doppler measurements) which can be used in external applications that offer precision positioning, real-time kinematics (RTK) and attitude sensing.

Ordering Information: LEA-4T-0-000-0    Buy samples

Further Information: Product Summary, Data Sheet, Support and Technical Documentation

Highlights:
  • Stationary Mode for GPS timing operation
  • 15 ns timing accuracy (error compensated)
  • 1-Satellite GPS timing
  • 10 Hz raw measurement data output
  • Flash EPROM: programmable and configurable
  • SuperSense Indoor GPS, -158 dBm
 Features:
  • 16 channel ANTARIS 4 positioning engine
  • Supports DGPS, WAAS, EGNOS and MSAS
  • 4 Hz position update rate
  • Configurable time pulse: 0.1 Hz - 1 KHz
  • Ultra low power consumption
  • 2 channel precision time mark / counter
  • Supports A-GPS services including AssistNow Online
  • 1 USB and 1 UART ports
  • Configurable I/O and UART voltage levels
  • Supports passive and active antennas
  • Antenna short and open circuit detection and protection
  • Power brown-out protection: No external reset hardware needed
  • Operating temperature range: -40 to 85°C
  • RoHS compliant (lead-free)

 
 
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last modified: 19.12.2007

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