AT9880B Beidou Single-Mode Navigation SOC Chip

08/01/2025

The AT9880B is a high-performance Beidou single-mode satellite navigation receiver SOC chip, integrating an RF front-end, digital baseband, Beidou multi-frequency signal processing engine, and power management. It supports China’s Beidou II and III, receiving signals at B1I, B1C, B2I, B3I, B2a, and B2b frequencies.

Key Features

  • Supports Beidou II/III

  • Supports single-frequency, dual-frequency, and multi-frequency Beidou reception

  • Supports A-BDS

  • Active antenna detection and protection

  • Integrated DCDC and LDO; supports 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

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Package Diagram

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Pin Configuration

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