The JS-ATP45-M is a cost-effective, low-power, multi-mode dual-frequency positioning module supporting GPS, BDS, GLONASS, Galileo, QZSS, and SBAS. Integrating a multi-band, multi-system GNSS RF baseband, it is designed for a wide range of applications and end products. Powered by a high-performance SoC positioning engine, it delivers excellent sensitivity, fast acquisition, and strong interference suppression, ensuring precise and reliable positioning even in challenging environments.
Product Features
Based on high-performance GNSS SOC series
135 channels (L1:75, L5:60)*
Cold start acquisition sensitivity is -148dBm, tracking sensitivity is -165dBm
Navigation update rate up to 10Hz
Supports GPS, BDS, GLONASS, Galileo, QZSS and SBAS
Support AGPS
Indoor and outdoor multipath detection and compensation
Application-rich hardware interfaces support multiple configurations
Integrated TCXO, LNA, SAW and RTC
Compact size (45.0mm x 45.0mm x 13.0mm±0.3mm) for space-sensitive applications
Support standard NMEA 0183 V3.01/V4.10
Support 1PPS output
Performance
| Parameters | Specifications |
| Satellite frequency | GPS L1CA L5 BDS B1I B2a Galileo E1B E1C E5a GLONASS L1OF QZSS L1CA L1SAIF L5 SBAS WAAS EGNOS MSAS GAGAN |
| Sensitivity | Tracking and Navigation -165dBm |
| Cold Start -148dBm | |
| Time-To-First-Fix | Cold Start 24s |
| Hot Start 1s | |
| GNSS Position accuracy | Horizontal 3G+B 1.0m (L1+L5)；2.5m (L1) |
| vertical 2.25m | |
| Time pulse signal accuracy | 1PPS 10ns |
| Speed accuracy | 0.05m/s |
| Operational restrictions | Acceleration 4g |
| Altitude 10000m | |
| speed limit 100m/s | |
| Frequency of time pulse signal | 1Hz |
| Baud Rate | 4800-921600 bps（Default115200 bps |
| Maximum navigation update rate | 10Hz（ Default 1Hz） |
Pin Parameters
| PIN | Name | I/O | Description |
| 1 | SCL | I/O | I²C clock |
| 4 | RXD/DP | I | UART Input |
| 5 | TXD/DM | O | UART Output |
| 4 | GND | G | GND |
| 5 | VCC | P | main power supply |
| 6 | SDA | I/O | I²C Data |
Product Application
Automotive applications
Maritime navigation, fleet management
Intelligent logistics dispatching
Ground vehicle tracking and urban intelligent traffic management
Intelligent robots
Wearable devices
Personal travel and wilderness adventures
Emergency rescue
Protocols
| Protocol | Type |
| NMEA 0183 V3.01/V4.10 | INPUT/OUTPUT, ASCII |
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