Product description
The MT3328N/B is a versatile GPS receiver designed for a wide range of applications that require high-precision positioning and low power consumption. The chip’s support for multi-constellation navigation systems ensures robust satellite tracking and improved location accuracy.
Multi-Constellation Support:
The MT3328N/B supports GPS, GLONASS, BeiDou, and QZSS satellite systems. By utilizing multiple constellations, the chip can access a greater number of satellites, improving the reliability and accuracy of the position fix. This capability is particularly beneficial in challenging environments where the device may have limited visibility to the sky, such as urban canyons, forests, or indoor areas.
High Sensitivity:
With a tracking sensitivity of -165 dBm, the MT3328N/B excels at maintaining a GPS fix even in areas with weak signals. This high sensitivity ensures that devices using the MT3328N/B can continue to provide accurate location information in challenging environments, such as indoor navigation or fitness tracking applications where the GPS signal might be obstructed.
Low Power Consumption:
The MT3328N/B is designed to be energy-efficient, making it ideal for battery-powered devices. In active mode, the chip consumes around 30 mA, which is typical for GPS receivers in navigation systems. However, its sleep mode consumption is less than 1 µA, which ensures extended battery life in portable devices like wearables or fitness trackers.
Fast Time to First Fix (TTFF):
The MT3328N/B offers quick Time to First Fix (TTFF) performance. Whether starting from a cold start, warm start, or hot start, the chip is optimized for fast acquisition times, providing reliable positioning within seconds. The chip’s ability to achieve a cold start in about 32 seconds, and a hot start in just 0.1 seconds, makes it ideal for real-time applications like navigation, tracking, and location-based services.
Positioning Accuracy:
The chip provides high-accuracy positioning with horizontal accuracy of 2.5 meters and vertical accuracy of 5 meters, which meets the demands of navigation and location-based services. The MT3328N/B’s accuracy ensures that users can rely on the device for precise location tracking in a variety of GPS-powered applications.
Specification parameters
Sensitivity:
Tracking Sensitivity: -165 dBm
Acquisition Sensitivity: -148 dBm
Reacquisition Sensitivity: -160 dBm
Position Accuracy:
Horizontal Accuracy: 2.5 meters (CEP50)
Vertical Accuracy: 5 meters
Power Consumption:
Active Mode: ~30 mA (typical)
Sleep Mode: <1 µA
Supported Satellite Systems:
GPS: L1 Frequency
GLONASS: L1 Frequency
BeiDou: B1 Frequency
QZSS: L1 Frequency
Interfaces:
UART: For communication with host devices (basic data transfer).
SPI: For high-speed data transfer.
I2C: For low-speed communication with other sensors or peripherals.
Time to First Fix (TTFF):
Cold Start: ~32 seconds
Warm Start: ~1-2 seconds
Hot Start: ~0.1 seconds
Operating Voltage:
Supply Voltage: 3.3V to 5.0V
Temperature Range:
Operating Temperature: -40°C to +85°C
Package Type:
The chip typically comes in QFN or LGA package types, offering a compact and efficient design for integration into various devices.
