AT9850B—Single Beidou Navigation Positioning Chip
The AT9850B is a high-performance, low-power dual-frequency single Beidou satellite navigation receiver SOC chip. It integrates an RF front-end, digital baseband, multi-mode satellite signal processing engine, and power management, offering high integration and simple peripheral circuitry.
It supports China’s Beidou B1I/B1C single-frequency or B1I/B1C/B2a dual-frequency positioning, Beidou II and III, and standalone Beidou positioning and timing. The chip enables fast satellite acquisition for accurate positioning, improving performance in complex environments. It includes anti-jamming hardware acceleration to detect and suppress RF interference.
Key Features
Supports B1I/B1C and B2a dual-frequency signal reception
Standalone Beidou positioning
Supports Beidou II/III
Supports A-BDS
Active antenna detection and protection
Integrated DCDC and LDO; supports 1.8/3.3V single power supply
Chip Applications
Vehicle positioning and navigation
Timing
Wearable devices
IoT positioning devices
Portable devices (e.g., smartphones, tablets)
Performance Metrics
Package Diagram
Pin Configuration
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