Product Description
The MediaTek MT3301GN-A3 is a state-of-the-art GNSS receiver chipset designed to deliver precise positioning and navigation solutions for a broad range of applications, from consumer-grade wearables and smartphones to industrial and commercial use cases. It excels in environments with weak satellite signals, such as urban canyons, dense forests, and even indoor locations, thanks to its high sensitivity and advanced signal processing capabilities.
A key feature of the MT3301GN-A3 is its multi-constellation GNSS support, which includes GPS, GLONASS, Beidou, and Galileo. This multi-constellation approach ensures robust and accurate positioning, as it provides multiple sources of satellite signals, improving accuracy, availability, and reliability across a wide range of geographic regions. The receiver's ability to track up to 22 satellites simultaneously significantly enhances its ability to provide stable and accurate positioning even in challenging environments where other GNSS receivers might fail to function properly.
In terms of sensitivity, the MT3301GN-A3 performs exceptionally well with a -167 dBm tracking sensitivity and -148 dBm acquisition sensitivity. These specifications make it suitable for use in environments where GNSS signals are weak or obstructed. For example, in applications like drones, asset trackers, and autonomous vehicles, where accurate positioning is critical, the MT3301GN-A3 can continue to provide reliable location data even in difficult conditions.
The time-to-first-fix (TTFF) of the MT3301GN-A3 is quick, typically requiring less than 30 seconds for a cold start, making it ideal for real-time applications that require immediate positioning data. This fast TTFF ensures that devices using the MT3301GN-A3 can begin operations quickly without long delays, especially in outdoor navigation or geotagging applications.
For positioning accuracy, the MT3301GN-A3 offers horizontal accuracy of approximately 2.5 meters (CEP 50%) and vertical accuracy of approximately 5 meters, making it suitable for general consumer applications such as location-based services (LBS), fitness tracking, asset tracking, and navigation. For applications requiring even higher precision, such as surveying or autonomous vehicles, the chipset supports DGPS and RTK corrections, which allow for sub-meter accuracy in ideal conditions.
Another significant advantage of the MT3301GN-A3 is its low power consumption, making it suitable for battery-powered devices. The chipset features multiple power-saving modes that minimize energy consumption when the device is idle or not actively tracking satellites. This energy efficiency is crucial for wearable devices, IoT applications, and other portable devices where battery life is a key consideration.
The MT3301GN-A3 also provides flexibility in integration, offering several communication interfaces, including UART, I2C, and SPI, which are common in embedded systems. This versatility allows the chipset to be easily incorporated into a wide variety of devices, ranging from smartphones and smartwatches to fleet management systems and autonomous robots.
Environmental resilience is another strong point of the MT3301GN-A3, with an operating temperature range from -40°C to 85°C and resistance to high humidity (up to 95%). This makes the chipset suitable for outdoor applications, industrial environments, and other tough settings where environmental conditions can vary drastically.
In conclusion, the MediaTek MT3301GN-A3 offers a high-performance GNSS receiver solution that excels in providing accurate, reliable, and low-power positioning for a variety of applications. Its multi-constellation support, high sensitivity, quick TTFF, and advanced power management features make it an ideal choice for portable devices, navigation systems, asset tracking, drones, and IoT solutions that demand continuous, high-precision location data, even in challenging environments.
Specification
GNSS Support:
Multi-Constellation Support: The MT3301GN-A3 supports the following GNSS constellations:
GPS (Global Positioning System): The receiver is fully compatible with the U.S. GPS system, providing accurate positioning globally.
GLONASS: It also supports the Russian GLONASS system, which enhances positioning accuracy in areas where GPS signals might be weak or unavailable.
Beidou: The Chinese Beidou system provides an additional layer of accuracy, particularly useful in Asia and the surrounding regions.
Galileo: The European Galileo system further improves positioning capabilities, offering another source of satellite signals to enhance performance in complex environments.
Signal Tracking: The MT3301GN-A3 supports simultaneous tracking of up to 22 satellites, and it can track up to 3 bands of signals (L1, L2, L5), enabling better accuracy in urban and challenging environments.
Performance:
Sensitivity: The MT3301GN-A3 is highly sensitive, with a tracking sensitivity of -167 dBm and acquisition sensitivity of -148 dBm. This high sensitivity allows the receiver to operate effectively even in weak signal environments, such as indoors, in tunnels, or near tall buildings.
Time to First Fix (TTFF): The chipset features a quick TTFF (typically less than 30 seconds for a cold start), making it suitable for real-time navigation and location-based services (LBS) applications.
Accuracy:
Horizontal Position Accuracy: Typically 2.5 meters (CEP 50%).
Vertical Position Accuracy: Typically 5 meters (CEP 50%).
DGPS (Differential GPS) and RTK (Real-Time Kinematic) support for sub-meter accuracy in optimal conditions, ensuring precise geospatial data for professional applications like surveying, geofencing, and autonomous vehicles.
Power Efficiency:
Low Power Consumption: The MT3301GN-A3 is engineered to minimize power usage, which is crucial for portable devices. It operates in a low-power mode (as low as 40mA during active tracking) and features various power-saving modes, including standby and sleep modes, which help extend battery life without compromising performance.
Power Supply: It operates at a wide input voltage range from 2.7V to 3.6V, allowing it to be used in a variety of devices, from smartphones to portable tracking devices and low-voltage applications.
Data Output and Interface:
Output Protocols: The MT3301GN-A3 provides NMEA 0183 and UBX binary output formats, ensuring compatibility with a wide range of GPS software and hardware systems. It also supports RAW data output for advanced applications that require raw GNSS data for post-processing and higher-level accuracy.
Interfaces:
UART (Universal Asynchronous Receiver-Transmitter): The primary communication interface for data transmission, supporting data rates up to 115200 bps for fast and efficient communication with external processors or microcontrollers.
I2C/SPI: For integration with other sensors or microcontrollers in more complex embedded systems.
Temperature and Environmental Specifications:
Operating Temperature Range: The MT3301GN-A3 operates in a wide temperature range from -40°C to 85°C, making it suitable for a variety of outdoor and industrial applications, where temperature extremes can be encountered.
Humidity: The receiver is rated for humidity resistance up to 95%, allowing it to function effectively in high-moisture environments.
