High-precision, dual-band GNSS module; 12.2mm × 16.0mm × 2.5mm; Approx. 0.9g

LC29H

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  • Multi-GNSS engine supporting GPS, GLONASS, BDS, Galileo, and QZSS

  • Concurrent reception of L1 and L5 GNSS band signals

  • Optional RTK functionality offering centimeter-level accuracy within seconds

  • Optional integrated dead reckoning (DR) function for enhanced position availability in GNSS-denied areas, supporting both 4-wheel and 2-wheel applications

  • Support for GNSS and IMU raw data

Features
  • Multi-GNSS engine supporting GPS, GLONASS, BDS, Galileo, and QZSS
  • Concurrent reception of L1 and L5 GNSS band signals
  • Optional RTK functionality offering centimeter-level accuracy within seconds
  • Optional integrated dead reckoning (DR) function for enhanced position availability in GNSS-denied areas, supporting both 4-wheel and 2-wheel applications
  • Support for GNSS and IMU raw data
View detail
Region Global
Dimensions 16.0 mm × 12.2 mm × 2.4 mm
Weight Approx. 0.9 g
Temperature Range  
Operating Temperature -40 °C to +85 °C
Storage Temperature -40 °C to +90 °C
GNSS Features  
Supported Bands GPS L1, Galileo E1, QZSS L1: 1575.42 MHz GPS L5, Galileo E5, QZSS L5: 1176.45 MHz BeiDou B1: 1561.098 MHz BeiDou B2: 1176.45 MHz GLONASS L1: 1602.5625 MHz
Default GNSS Constellation GPS + GLONASS + Galileo + BeiDou + QZSS
Number of Concurrent GNSS 5
SBAS WAAS, EGNOS, MSAS* and GAGAN
Horizontal Position Accuracy ①  Autonomous: 1 m CEP
Velocity Accuracy Without Aid: < 0.1 m/s
Acceleration Accuracy ① Without Aid: < 0.1 m/s²
Timing Accuracy ① 1PPS < 100 ns
TTFF @ -130 dBm with EASY™ ② Cold Start: < 15 s, Warm Start: < 3 s, Hot Start: < 1 s
TTFF @ -130 dBm without EASY™ ① Cold Start: < 28 s, Warm Start: < 20 s, Hot Start: < 1 s
Sensitivity ③ Acquisition: -147 dBm, Tracking: -165 dBm, Reacquisition: -162 dBm
Dynamic Performance ① Maximum Altitude: 10000 m, Maximum Velocity: 500 m/s, Maximum Acceleration: 4g
Certifications  
Regulatory CE*
Others RoHS
Interfaces  
I2C* Up to 400 kbps
UART Adjustable: 9600–921600 bps Default: 115200 bps Update Rate: 1 Hz (Default); Max. 10 Hz
Protocols NMEA 0183, PAIR, PQTM
External Antenna Interface  
Antenna Type Active or Passive
Antenna Power Supply External
Active Antenna Protection Short-Circuit Protection and Open-Circuit Detection
Electrical Characteristics  
Supply Voltage Range 3.1–3.6 V, Typ. 3.3 V
I/O Voltage Typ. 2.8 V
Current Consumption (Default GNSS Constellation @ 3.3 V) ① Normal Operation: 44 mA @ Acquisition 43 mA @ Tracking Power Saving Mode: 51 μA @ Backup Mode

Notes:

1. ①: Room temperature, all satellites at -130 dBm.

2. ②: Open-sky, active high precision GNSS antenna, less than 1 km baseline length.

3. ③: Room temperature, demonstrated with good LNAs.

4. *: Under development / Ongoing.

I. Summary

  • High-precision, dual-band GNSS module
  • 12.2mm × 16.0mm × 2.5mm
  • Approx. 0.9g
  • GPS/QZSS, GLONASS, BDS, and Galileo
  • Operating temperature of -40°C to +85°C

II. Overview

LC29H is a series of dual-band, multi-constellation GNSS modules that support the concurrent reception of all four global GNSS constellations: GPS, BDS, Galileo and GLONASS.

Compared to GNSS modules that track only L1 signals, the LC29H series can receive and track a higher number of visible satellites in multi bands, thereby significantly mitigating the multipath effect in deep urban canyons and improving positioning accuracy. By having an internal LNA and SAW filter, the module achieves better sensitivity and anti-interference capability. Featuring dual frequency support, the module delivers CEP accuracy values of 1 m in autonomous mode and centimeter levels in the RTK capable variants. The optional DR function ensures the module’s superior positioning performance even in weak signal areas or when GNSS signals are not available.

Based on the receiver chip using 12 nm technology, the LC29H series provides advanced power management enabling low-power GNSS sensing and position fix, which makes the module an ideal solution for power-sensitive and battery-powered systems. Featuring high-precision positioning and low power consumption makes the LC29H series perfectly suited for applications such as real time tracking and sharing economy related services.

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