MediaTek

MT3339AV

  • The MT3339AV is a Global Positioning System (GPS) receiver chip developed by MediaTek. It is designed for a wide range of applications, including navigation, tracking, and location-based services. The MT3339AV is part of MediaTek's GPS solutions, offering high performance with low power consumption, making it suitable for both portable and embedded devices.

Product Description

The MT3339AV is designed for a wide variety of location-based services and navigation applications, with high sensitivity, multi-constellation support, and low power consumption as key features. Its performance makes it ideal for applications in portable devices, consumer electronics, and automotive systems.

Multi-Constellation Support

The MT3339AV's ability to support multiple satellite systems—GPS, GLONASS, BeiDou, and Galileo—ensures that the device can quickly and reliably fix a position using satellites from various constellations. This multi-constellation capability increases the accuracy and reliability of location-based services, especially in challenging environments where satellite visibility may be limited. For example, in urban canyons or dense forests, having access to more satellite signals improves positioning accuracy and reduces the likelihood of losing signal.

High Sensitivity and Fast Time to First Fix

With a sensitivity of -165 dBm in tracking mode, the MT3339AV can maintain satellite tracking in conditions where other GPS receivers might struggle. This high sensitivity ensures that the chip can operate in difficult environments, such as indoors near windows, within high-rise cities, or under foliage, ensuring continuous location updates.

The fast TTFF times allow the chip to rapidly acquire satellite signals. It achieves a cold start time of 42 seconds and a warm start time of 33 seconds under typical conditions, meaning it can quickly deliver positioning data after powering on. This feature is particularly useful for applications like navigation systems or location-based services, where a fast location fix is critical to the user experience.

Low Power Consumption

The MT3339AV is optimized for low power consumption, making it an excellent choice for battery-powered applications. The chip consumes less than 50 mA in tracking mode, which is important for extending the battery life of portable devices like smartphones, wearables, drones, and fitness trackers that require constant GPS tracking. Additionally, its low power consumption helps minimize heat generation, which is beneficial in compact devices with limited space for thermal management.

NMEA Protocol Support

The MT3339AV supports the NMEA 0183 protocol, which is a standard communication protocol used in many GPS devices. This compatibility makes it easy to integrate the chip into a wide range of applications, including mapping software, navigation systems, and real-time location systems (RTLS). It enables seamless communication between the GPS receiver and other devices, whether for personal use, in-vehicle navigation, or for industrial applications requiring precise location tracking.


Specification

  • GPS, GLONASS, BeiDou, and Galileo support for global satellite coverage.

  • High sensitivity with support for -165 dBm in tracking mode.

  • Fast time to first fix (TTFF):

    • Cold Start: 42 seconds (typical).

    • Warm Start: 33 seconds (typical).

    • Hot Start: 1 second (typical).

  • Integrated LNA (Low Noise Amplifier) for enhanced signal reception.

  • NMEA 0183 protocol support for easy integration with GPS software and hardware.

  • Low power consumption with <50 mA in tracking mode.

  • Small form factor for integration into compact devices.

  • Accuracy: Horizontal accuracy within 2.5 meters under open sky conditions (typical).

  • Operating temperature range: -40°C to +85°C.


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