Product Description
The MediaTek MT3328N-BVDL is a highly versatile GPS/GNSS receiver chip, well-suited for a variety of positioning applications across consumer, industrial, and automotive sectors. The chip's capability to support multiple satellite systems, including GPS, GLONASS, BeiDou, and QZSS, makes it incredibly reliable for global positioning, providing enhanced accuracy and signal availability, even in challenging conditions. This multi-GNSS support is particularly important for applications in regions where coverage from a single satellite system might be limited.
One of the chip’s standout features is its high-precision positioning capabilities. The MT3328N-BVDL can provide < 2.5 meters horizontal accuracy, which is crucial for many applications such as real-time vehicle navigation, fleet tracking, and personal navigation devices. Additionally, the chip’s ability to receive signals from multiple GNSS constellations increases robustness by providing greater satellite visibility and reducing the risk of poor signal reception due to obstructions or environmental interference.
The low power consumption of the MT3328N-BVDL makes it particularly well-suited for battery-powered devices, including wearables, portable GPS units, and IoT devices. With an operating power consumption that can be as low as < 25mW in sleep mode, this chip ensures that the device it powers can run for extended periods without frequent recharging. This is achieved through the integration of advanced low-power modes like A-GPS, which helps minimize power draw while still maintaining a high level of performance and fast TTFF (Time-to-First-Fix).
The MT3328N-BVDL's signal reception capabilities are enhanced by its ability to handle up to 72 channels across multiple frequency bands. This feature, combined with advanced multipath mitigation and SNR optimization, ensures that the chip performs well in urban environments with dense buildings (urban canyons) and under heavy tree canopy (dense forests), where typical GPS receivers might struggle to get a lock.
Furthermore, the chip is equipped with a range of interface options such as UART, SPI, and I2C, making it easy to integrate into a wide variety of devices. This flexibility, along with NMEA 0183 support for standardized GPS data output, makes the MT3328N-BVDL compatible with most GPS-related software and hardware systems.
With its robust environmental tolerance, the MT3328N-BVDL operates reliably in both consumer-grade and industrial-grade applications. Its wide operating temperature range of -40°C to +85°C ensures that it can be used in harsh outdoor conditions, whether in automotive navigation systems, agricultural monitoring devices, or remote weather stations.
In conclusion, the MediaTek MT3328N-BVDL is a high-performance, power-efficient, and highly flexible GPS/GNSS chip that provides accurate and reliable location data across a variety of applications. Its support for multiple GNSS constellations, low power modes, and rugged environmental capabilities make it a standout choice for both consumer electronics and industrial solutions that require precise, real-time positioning.
Specification
Positioning Accuracy:
Horizontal Accuracy: Typically < 2.5 meters with high precision and good satellite visibility conditions.
Vertical Accuracy: Typically < 5 meters, allowing for more reliable altitude measurements in navigation applications.
The chip can achieve < 1 meter accuracy with the aid of differential correction techniques and additional support for RTK (Real-Time Kinematic) systems in advanced setups.
Signal Reception:
The MT3328N-BVDL is capable of receiving signals from up to 72 channels across multiple GNSS constellations.
It supports L1, L2, and L5 frequency bands (for GPS), GLONASS L1 frequency, BeiDou B1 frequency, and QZSS signal bands, providing robust performance across various satellite systems.
The chip integrates advanced Signal-to-Noise Ratio (SNR) optimization and multipath mitigation to maintain reliable signal reception even in challenging environments like urban canyons or dense forests.
Power Consumption:
The MT3328N-BVDL consumes extremely low power, especially in its sleep mode, drawing as little as < 25mW during standard operation.
It features multiple power-saving modes such as A-GPS (Assisted GPS) and low-power tracking, ensuring minimal energy consumption during periods of inactivity or low-intensity use.
When in full operational mode, it operates at a maximum power consumption of around 200mW, which is ideal for integration into battery-operated devices like wearables and portable navigation devices.
Time-to-First-Fix (TTFF):
The MT3328N-BVDL offers a cold start time of less than 30 seconds, which is the time it takes for the receiver to establish its initial location when it has no prior position data.
For a warm start, where the receiver has some prior knowledge of the satellite configuration, the TTFF is typically less than 5 seconds, providing quick and reliable position updates.
The hot start time (when the receiver maintains its satellite lock) is even faster, typically under 1 second.
Antenna Support:
The MT3328N-BVDL integrates an on-chip LNA (Low Noise Amplifier) to enhance the performance of external antennas, improving signal reception in challenging environments.
It supports a single-ended antenna input, simplifying integration with various antenna designs, and ensuring strong signal strength and reduced interference.
Communication Interface:
The chip offers standard interfaces like UART (Universal Asynchronous Receiver-Transmitter), I2C, and SPI, allowing for easy integration with microcontrollers or other processing units.
It also supports NMEA 0183 standard for outputting position data, making it compatible with a wide range of software and devices.
Temperature and Environmental Tolerance:
The MT3328N-BVDL is designed to operate in extreme environmental conditions, with an operating temperature range of -40°C to +85°C, making it suitable for both consumer and industrial-grade applications.
It is resistant to environmental factors such as humidity, shock, and vibration, which is especially important for automotive and outdoor navigation devices.
Built-In Assisted GPS (A-GPS):
The MT3328N-BVDL incorporates A-GPS support, which uses additional network information (such as cell tower data) to speed up the initial positioning fix and improve positioning performance in difficult signal conditions.
