Leadtek LR9552 TTL GPS Module

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Leadtek LR9552 TTL GPS Module
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Product description

The Leadtek LR9952 module is a high sensitivity and very compact module with integrated antenna, with built in GPS receiver circuit and TTL level serial inteface. This 20-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRFStarIII™ architecture.

Note: This is TTL level version of LR9952 module. If you're rather interested in RS-232 version please refer to Leadtek LR9952 RS-232 GPS Module

Technical specifications

Hardware and Software features

  • Based on the high performance features of the SiRFStar III/LP single chip
  • Compact module size for easy integration: 25x25x8.9 mm (with 4 mm patch antenna)
  • Fully automatic assembly: reflow solder assembly ready
  • Hardware compatible with SiRF GSW3.2 serial software

Performance features

  • Cold/Warm/Hot Start Time: 1/38/45 sec.
  • Reacquisition Time: 0.1 second
  • RF Metal Shield for best performance in noisy environments


  • TTL level serial port for GPS communications interface
  • Protocol: NMEA-0183/SiRF Binary (default NMEA)
  • Baud Rate: 4800, 19200, or 57600 baud (default 4800)
  • System connector

Recommended accessories

Following accessories are recommended to be purchased along with this product as they might be required for operation and may not be included in this product.
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