BeiDou-3 Anti-Jamming Baseband Processor Chip – Multi-Frequency GNSS with Interference Resistance
HAJ2020
The HAJ2020 is an advanced anti-jamming BeiDou-3 (BDS-3) baseband processor chip developed by WalliSemi, specifically engineered to maintain reliable navigation performance in electronically contested environments. Utilizing 55nm process technology, this robust IC delivers exceptional interference resistance through its innovative multi-frequency architecture.
Specifications
Key technical features:
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Enhanced anti-jamming capability with configurable dual-frequency modes (B3/B1, B3/S, B3/B2b)
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High channel capacity supporting 8 receiving channels per single frequency
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Guaranteed signal integrity with minimum 4 receiving channels in dual-frequency anti-jamming configurations
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Industrial-grade BGA package (20×20×1.37mm) designed for harsh environments
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Comprehensive interface suite (UART/SPI/I2C/GPIO) for flexible system integration
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Wide temperature operation (-40℃ to +85℃) for mission-critical applications
This processor chip embodies WalliSemi’s vision of “Intelligent Technology, Core to the Future”, providing military-grade anti-jamming performance for defense systems, autonomous vehicles, and critical infrastructure where GNSS signal reliability is paramount. Its unique combination of multi-frequency processing and interference mitigation makes it particularly valuable for applications requiring uninterrupted positioning in challenging RF environments.
| Model | HAJ2020 |
| Supported Frequencies & Channels | BDS: B1/B2/B3/S with 8-channel reception capability per single frequency Dual-frequency anti-jamming modes: B3/B1, B3/S, B3/B2b with ≥4 receiving channels per dual-frequency combination |
| Process Technology | 55nm |
| Navigation & Communication Interfaces | UART, SPI, I2C, GPIO |
| Package Type | BGA |
| Dimensions | 20mm × 20mm × 1.37mm |
| Operating Temperature | -40℃ to +85℃ |