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_.webp "JS-AD56UB8")
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The JS-AD56UB8 is a low-power, cost-effective, multi-GNSS positioning module (GPS, BDS, GLONASS, Galileo, SBAS, QZSS) designed for a wide range of applications. Utilizing the high-performance U8 engine, these receivers deliver exceptional sensitivity and fast acquisition time. Integrated interference suppression ensures reliable positioning even in challenging signal environments.
Product Features
U8 high performance GNSS Chips
Over 2 million effective correlators
72 search mode channels and 24 capture channels
Cold start acquisition sensitivity of -148dBm and -167dBm tracking sensitivity
Up to 10 Hz navigation update rate
Up to three GNSS systems can be received simultaneously(GPS, Galileo and Beidou or GLONASS)
Supports AGPS
Integrated TCXO, LNA, SAW, RTC
Compact size (φ56mm x8.9mm±0.5mm ) suitable for space-sensitive application
Support standard NMEA 0183 V4.0/V4.1, UBX
This module can be equipped with VCM5883(IST831), MCU, Barometer and so on.
Performance
| Parameter | Specification |
| Receiver type | GPS L1C/A SBAS L1C/A QZSS L1C/A GLONASS L1OF BDS B1I Galileo E1B/C |
| Sensitivity | Tracking & Navigation : -167 dBm |
| Reacquisition : -160 dBm | |
| Cold Start : -148 dBm | |
| Time-To-First-Fix1 | Cold Start : 26 s |
| Hot Start : 1 s | |
| Horizontal Position accuracy2 | Autonomous : 2.5 m CEP |
| SBAS : 2.0 m CEP | |
| Accuracy of time pulse signal | RMS : 30 ns |
| Velocity accuracy3 | 0.05 m/s |
| Operational limits4 | Dynamics : ≤ 4 g |
| Altitude : 50000 m | |
| Velocity : ≤500 m/s | |
| Frequency of time pulse signal | 1Hz |
| Baud Rate | 9600 - 460800 bps （Default 9600 bps） |
| Max navigation update rate | 10 Hz （Default 1 Hz） |
Pin Parameters
| PIN | Name | I/O | Description |
| 1 | SCL | I/O | I2CClock（keepopenifnotused） |
| 2 | CANL/RXD | I | SerialPort（keepopenifnotused） |
| 3 | CANH/TXD | O | SerialPort（keepopenifnotused） |
| 4 | GND | G | Ground |
| 5 | VCC | P | MainSupply |
| 6 | SDA | I/O | I2CData（keepopenifnotused） |
Product Application
Intelligent logistics scheduling
Personnel protective
Ideal for PDA, pocket PC
Car navigation and tracking
Intelligent robot
Protocols
| Protocol | Type |
| NMEA 0183 V4.0/V4.1 | Input/output, ASCII |
| UBX | Input/output, binary, u-blox proprietary |
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