[Communication interface]：UART
[Operating voltage]： 2.7-53.6V
[Positioning system]：BDS
[Product size]： 9.7*10.5*2.4mm
[Introduction]：E108-GN03B single Beidou positioning and navigation module is a high-performance positioning and navigation module based on the sixth-generation SOC single Beidou chip AT6668B of Zhongkewei. It applies the new navigation integrated SOC single chip technology, which can meet the application of high-precision positioning and high-precision timing. It has the characteristics of high integration, high performance, low power consumption, and small size. It also supports Beidou-2 (B1I) and Beidou-3 (B1C) signals. This series of modules has three common packages and is compatible with the software and hardware interfaces of GNSS modules of other manufacturers. It can be used in vehicle navigation, wearable devices, mobile phones, IoT devices, drones and other application fields.
| Main parameters | performance | Remark | ||
| Minimum | Typical Value | Maximum | ||
| E108-GN03B Operating voltage (V) | 2.7 | 3.3 | 3.6 | Exceeding 3.6V may burn the module |
| E108-GN03BS Operating voltage (V) | 2.7 | 3.3 | 3.6 | |
| E108-GN03BD Operating voltage (V) | 2.7 | 5 | 5.5 | Exceeding 5.5V may burn the module |
| Communication level (V) | 3.3 | Except for E108-GN03BD, using 5V TTL may burn out | ||
| Maximum Withstand ESD Level (V) | - | - | 2000 | HBM |
| Operating temperature (°C) | -40 | - | 85 | Industrial-grade design |
| Storage temperature (℃) | -40 | - | 125 | |
| Humidity (%RH) | 5 | - | -95 | No condensation |
| Main parameters | describe | Remark |
| Baud rate (bps) | 4800~115200 | Default 115200 |
| Data bits | 8bit | - |
| Stop bits | 1 | - |
| Communication interface | UART | - |
| Packaging | SMD | - |
| Product size | 9.7*10.5*2.4mm | ±0.2mm |
| Antenna interface | Stamp Holes | - |
| Communication Protocol | Support NMEA0183 V4.10 and previous versions | - |
| Positioning update rate | 1Hz | The maximum positioning update frequency can reach 10Hz |
| Supported positioning systems | BDS | BDS B1I、BDS B1C |
| Product Weight | 0.5 g | ±0.1g |
| category | Indicator | Typical Value | unit |
| Positioning time (Test condition 1) |
Cold Start | ≤23 | s |
| Hot Start | ≤1 | s | |
| Recapture | ≤1 | s | |
| Sensitivity (Test condition 2) |
Cold Start | -148 | dBm |
| Hot Start | -156 | dBm | |
| Recapture | -160 | dBm | |
| track | -162 | dBm | |
| Accuracy (Test condition 3) |
Horizontal positioning accuracy (static) | ＜2.5 | m |
| Vertical positioning accuracy (static) | ＜3.0 | m | |
| Speed positioning accuracy | ＜0.1 | m/s | |
| Timing accuracy | 30 | ns | |
| Power consumption (Test condition 4) |
E108-GN03B Capture Current | 25 | m.a. |
| E108-GN03BS Capture Current | 26 | ||
| E108-GN03BD Capture Current | 24 | ||
| E108-GN03B Tracking Current | 25 | m.a. | |
| E108-GN03BS Tracking Current | 26 | ||
| E108-GN03BD Tracking Current | 24 | ||
| E108-GN03B Sleep Current | 19 | a | |
| E108-GN03BS Sleep Current | 20 | ||
| E108-GN03BD Sleep Current | 0.3 |
[Test condition 1]: The number of received satellites is greater than 6, the signal strength of all satellites is -130dBm, the average value is taken after 10 tests, and the positioning error is less than 10 meters.
[Test Condition 2]: External LNA noise coefficient 0.8, number of received satellites greater than 6, received signal strength value under lock or no loss of lock conditions within five minutes.
[Test condition 3]: Open environment with no obstructions, 24 hours of continuous power-on test, 50% CEP.[Test condition 4]: The number of received satellites is greater than 6, and the signal strength of all satellites is -130dBm.
