Quectel LG680P Full-Constellations and Full-Bands High-Precision GNSS Module - SATRON electronics
Quectel LG680P
High-Precision GNSS Module
  • High-precision multi-band GNSS module
  • 22 mm × 17 mm × 2.7 mm
  • Approx. 2.3 g
  • Operating temperature: -40°C to +85°C
  • Supports GPS + GLONASS + Galileo + BDS + QZSS + NavIC

LG680P (03) is a full-constellations, full-bands GNSS module with 1040 tracking channels, which supports concurrent reception of GPS, GLONASS, Galileo, BDS, QZSS, and NavIC constellations, as well as multiple SBAS systems (WAAS, EGNOS, BDSBAS, MSAS, GAGAN, KASS, ASECNA, SouthPAN, and SDCM).

The built-in professional-grade interference signal detection and elimination algorithms effectively mitigate multiple narrow-band interferences, which significantly improves signal reception performance, particularly in complex electromagnetic environments. In addition, LG680P (03) supports multi-band signals L1, L2, L5, L6 with built-in RTK algorithms, significantly enhancing robustness in challenging environments such as dense foliage canopy and urban canyons, enabling high-precision positioning. It also supports Galileo E6, QZSS L6, BDS B2b, and L-Band* frequencies for PPP technology.

LG680P (03) supports integrity information detection functions such as protection level to assist control decision-making in applications like autonomous navigation. It also features on-chip memory ECC verification and Secure Boot loading mechanisms, providing additional firmware security. In addition, it offers versatile peripheral interfaces including UART, SPI*, I2C*, and CAN* to meet diverse application requirements.

With high precision, low power consumption and a high positioning update rate up to 20Hz, the LG680P (03) multi-band GNSS module is an ideal choice for high precision navigation applications, such as intelligent robots, precision agriculture, ADAS, and autonomous driving.

Key Features
  • Concurrent reception of multi-constellation signals: GPS, GLONASS, Galileo, BDS, QZSS, NavIC and SBAS
  • Multi-band GNSS signals: L1, L2, L5 and L6
  • Galileo E6, QZSS L6, BDS B2b and L-Band* for PPP technology
  • High positioning update rate up to 20Hz
  • Built-in professional-grade NIC anti-jamming unit to suppress multiple narrow-band interferences
  • Abundant interfaces: UART, SPI*, I2C* and CAN*
  • AGNSS* technology
  • Features RTKHOLD – retains centimeter-level accuracy for up to 10 minutes after connection loss
Quectel LG680P (03) GNSS Module LG680P (03)
Dimensions 22.0 mm × 17.0 mm × 2.7 mm
Weight Approx. 1.7 g
Temperature Range
Operating Temperature -40 °C to +85 °C
Storage Temperature -40 °C to +95 °C
GNSS Features
Supported Bands GPS: L1 C/A, L2C, L5
GLONASS: L1, L2
Galileo: E1, E5a, E5b, E6
BDS: B1I, B1C, B2I, B2a, B2b, B3I
QZSS: L1 C/A, L2C, L5, L6
NavIC: L5
L-band*
Default Constellations GPS + GLONASS + Galileo + BDS + QZSS + NavIC
Number of Tracking Channels 1040
Number of Concurrent GNSS 5 + QZSS
SBAS WAAS, EGNOS, BDSBAS, MSAS, GAGAN, KASS, ASECNA, SouthPAN, SDCM
Function RTK
Horizontal Position Accuracy Autonomous: 1 m①
RTK: 0.8 cm + 1 ppm②
Vertical Position Accuracy Autonomous: 1.5 m①
RTK: 1.5 cm + 1 ppm②
Velocity Accuracy③ Without Aid: 0.03 m/s
1PPS Signal Accuracy (1σ)③ 5 ns
RTK Convergence Time② 5s
TTFF (without AGNSS*) ④ Cold Start: 28 s
Warm Start: 28 s
Hot Start: 1.8 s
Sensitivity (@ Default Constellations)⑤ Acquisition: -145 dBm
Tracking: -160 dBm
Reacquisition: -155 dBm
Dynamic Performance③ Maximum Altitude: 10000 m
Maximum Velocity: 490 m/s
Maximum Acceleration: 4g
Update Rate Default: 10 Hz
Max: 20 Hz
Certifications
Regulatory Europe: CE*
Others RoHS
Interfaces
UART × 3
Adjustable: 9600-3000000 bps
Default: 460800 bps
I2C* × 1
Max. 400 kbps
SPI* × 1
Recommended baud rate range: 1-3 Mbps
CAN* × 1 (Multiplexed from UART3)
Protocols
Protocol NMEA 0183, RTCM 3.x and QGC
Antenna Interface
Antenna Type External active antenna⑥
Antenna Power Supply External or Internal
Electrical Characteristics
Supply Voltage Range 3.0–3.6 V, Typ. 3.3 V
I/O Voltage Typ. 3.3 V
Current Consumption③
(@ 3.3 V, Default Constellations)
Normal Operation:
88 mA (290.4 mW) @ Acquisition
96 mA (316.8 mW) @ Tracking
Power Saving Mode:
18 μA (59.4 μW) @ Backup Mode
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