The accuracy of Unicore GNSS receivers ranges all the way from meter, though sub-meter and centimeter, down to the millimeter level.

Using our own unique technology Unicore has successfully developed and fielded series of multi-system, multi-frequency, high-performance System on a Chip (SoC), and a range of high-precision, board-level GNSS receivers and navigation/timing modules.

Applications include Continuously Operating Reference System (CORS) reference stations, survey & mapping, precision agriculture, positioning & heading, vehicle monitoring, autonomous vehicle navigation, and precision timing – along with a number of other

Unicore is a one-stop provider of GNSS SoC chips and GNSS receivers, with extensive experience in the design, verification, development, implementation and production of highly integrated ICs, along with multi-system high-performance GNSS baseband algorit

Unicore Communications, Inc. is a technology company focused on the design & development of highly integrated ICs, algorithms and GNSS receivers.

Home > Product Center > UFirebird UC6226

UFirebird UC6226

Ultra-low Power GNSS SoC

Brief Introduction

With the 28nm process and ingenious PMU design, UFirebirdTM(UC6226) features ultra-low power consumption and ultimate miniaturization, thus significantly improving the battery life. UC6226 is equipped with a built-in Sensor Hub which is capable of providing access for multiple sensors for fusion positioning. Through precise identification of the scene and context, it can ensure faster and more accurate positioning experience even in the harsh signal environment. UC6226 is developed for global application,and it supports BDS, GPS, GLONASS, Galileo, and it can achievemulti-system joint positioning. The high integration design reduces the quantity of peripheral devices and the board area. For QFN40 package, UFirebird complies with the AEC-Q100 reliability standard.

Product advantages

• Ultra-low power consumption

• Global application, supporting BDS, GPS, GLONASS and Galileo systems as well as WAAS/QZSS/EGNOS / MSAS/GAGAN enhanced signal

• Built in Sensor Hub, leading PDR algorithm, perfectly improved positioning accuracy, and ultimatepowersaving

• Built-in anti-interference module, excellent environmentaladaptability, and all-around applicability to the mobile phones, wearable devices and vehicle navigation

• High integration, simple peripheral devices, and significantly reduced board area

• One-stop location-based service

• compatible mainstream package

Data Manual

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Technical Index

GNSS Performance

Single Point Positioning

2.0m CEP






<1.0m CEP

Cold Start




Time To First Fix(TTFF)

Cold Start<29s





Velocity Accuracy


Hot Start





Hot Start<1s








Velocity Accuracy



Electrical and Environment Feature

Power Supply 1.7V~3.6V(use DC-DC)
1.2V~1.98V(bypass DC-DC)
IO 1.7V~3.6V
Power consumption 20mW, Normal mode
9mW, GSE low power mode
4mW, PDR mode
26uA, Deeply sleep mode
Temperature Operating: -40°C ~+85°C
Humidity sensor MSL3
RoHS Compliant
AEC-Q100 Optional,support QFN40


uniAssist AGNSS Onine Assist OMA SUPL&3GPP Compliant
Long time ephemeris predictions Online 28 days, offline 14 days
Raw Data Sensor Hub Centimeter level RTK post-processing
Supports ten-axis sensor input
(acceleration, gyroscope, magnetometer, barometer)
Supports vehicle odometer pulse / information input
Geo-fence Built-in algorithm, user configurable (no need to wake
up AP)
Hybrid Support WIFI, Cell ID, sensor and GNSS fusion positioning
Anti-interference Built-in, Active anti-jamming
signal detection and removal
Built-in, optional
Data updatingrate
Maximum 10Hz
Data Format
NMEA0183,Unicore Protocol
GNSS clock input
Support TCXO or Crystal
RTC Input
32.768kHz optional (Frequency
can be divided by GNSS clock)
Storage Built-in ROM firmware,support
external SPI Flash and AP SPI


Serial ports 1 UART
1 I2C
1 SPI Master
1 SPI Slave

2 Configurable le PPS
2 external interruptinput
2 PIO, used for Antenna Detect

Application Area