Product description
The MT3336N/B is a high-performance GPS receiver chip that offers advanced features for a variety of location-based services. Designed with a focus on high sensitivity and low power consumption, it is ideal for portable devices where both accurate positioning and energy efficiency are crucial.
Multi-Constellation GPS Support:
One of the key features of the MT3336N/B is its multi-constellation support, which allows it to track satellites from multiple navigation systems, including GPS, GLONASS, BeiDou, and QZSS. By accessing more satellites, the chip increases the likelihood of a faster and more accurate position fix, even in areas with challenging reception. For example, in dense urban environments with many tall buildings (urban canyons), the additional constellations improve signal reception, ensuring better positioning accuracy and reducing the chances of a GPS fix being lost.
High Sensitivity:
With a tracking sensitivity of -165 dBm, the MT3336N/B can receive weak signals from distant satellites, making it ideal for situations where the GPS signal is partially obstructed. This includes usage inside buildings, under heavy foliage, or in deep urban environments where a clear view of the sky might be blocked. The chip can still track satellites, which means it maintains reliable performance in scenarios that would typically challenge other GPS chips.
Fast Acquisition and Position Fix:
The chip features fast Time to First Fix (TTFF) capabilities, allowing it to acquire a position quickly after power-on or when GPS signal recovery is needed. Whether in cold start, warm start, or hot start situations, the MT3336N/B is designed to minimize the wait time to lock onto satellites. The cold start time is about 32 seconds, while the hot start time can be as fast as 0.1 seconds, making it suitable for real-time applications requiring near-instant GPS fixes.
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 processors.
SPI: For faster data transfer when needed.
I2C: For integration with low-speed 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: Typically available in QFN or LGA packages, providing a compact form factor for integration into small devices.