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The UBX-M9140-KA-C1009A is a high-performance GNSS (Global Navigation Satellite System) chip based on the M9 technology platform. It is available in a 40-pin QFN package and meets automotive-grade (AEC-Q100) standards, and is designed for harsh environments, such as automotive, telematics, and unmanned aerial vehicle (UAV) applications. The chip supports multi-constellation GNSS signal reception (GPS, GLONASS, BeiDou, Galileo) and features enhancements such as anti-jamming and spoofing detection to ensure high-precision positioning and system security.

Key Features

Multi-constellation GNSS support: It can receive 4 GNSS systems (GPS, GLONASS, BeiDou, Galileo) at the same time, which improves positioning availability and accuracy, and maintains 1.5 metre accuracy even in complex environments such as urban canyons.

High Dynamic Performance: Supports 25Hz high update rate, suitable for UAVs, autonomous vehicles and other applications that require fast position updates.

Anti-jamming and spoofing detection:

Built-in SAW filter and LNA (Low Noise Amplifier) to effectively suppress RF interference.

Spoofing detection algorithms identify and report GNSS spoofing attacks to improve system security.

Automotive-grade reliability: Complies with ISO/TS 16949, ISO 16750, and AEC-Q100 standards, making it suitable for the harsh automotive electronics environment.

Flexible Firmware Upgrade: Supports host firmware update without additional Flash storage, reducing system cost.

Technical Parameters

GNSS system: GPS, GLONASS, BeiDou, Galileo

Concurrent GNSS reception: 4 systems

Positioning accuracy: 1.5 metres (open sky)

Update rate: up to 25Hz

Operating voltage: 1.8V - 3.0V

Operating temperature: -40°C to +85°C (industrial) / +105°C (extended)

Package: 40-pin QFN

Interface: UART ×2, USB ×1, SPI ×1, I²C ×1

Application Scenarios

Automotive navigation and telematics: for in-vehicle T-Box, ADAS (Advanced Driver Assistance System), etc.

UAV and Robot Navigation: High dynamic response is suitable for UAV, AGV (Automated Guided Vehicle) and other applications.

Industrial and asset tracking: anti-jamming capability makes it suitable for logistics, fleet management and other scenarios.

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