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 > Humbird UC220

Humbird UC220


Brief Introduction

Unicore HumbirdTM is a low-power GNSS SoC using advanced 55nm process technology and independent intellectual property rights GNSS algorithm, while running a 64 channel, providing users with ultra low power consumption, ultra high-performance location service and user experience.

HumbirdTM SoC supports single system independent positioning and BDS+GPS/GLONASS/GALILEO dual-system interoperation, and is flexible for configuration. 

With unique “Ultra-Sense” high sensitivity base-band design, the receiver can remain well positioning effect in the urban canyon and other complex environment. At the same time, thanks to innovative “Rhythm Sleep” technology, HumbirdTM can run at very low power levels. The simple, compact design make it most suitable for portable navigation and GIS handheld applications besides vehicle control, navigation, timing and other professional applications.


• U-Engine technology supports BDS+GPS/GLONASS/GALILEO

• 35mW ultra-low power design, and -160dBm super high sensitivity

• Fast time to first fix, supporting hot start

• High quality raw measurements output

• Support DGNSS and AGNSS

• Support precise timing

• Simple peripheral circuit, suitable for low cost solutions

• 55nm Process

Data Manual

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Technical Index

Performance Specification

Channel 64 channel,Universal Engine Update Rate 1Hz~5Hz
Frequency BDS B1 Positioning Accuracy(RMS) 2.5m CEP,SBAS 2.0m CEP *
GPS L1 Velocity Accuracy(RMS) 0.1m/s
GLONASS L1 Sensitivity Tracking -160dBm
GALILEO E1 Acquisition -147dBm
Positioning Mode Single System Positioning TTFF Cold Start 32s
Dual-System Positioning Warm Start 32s
    Hot Start 1s

Electrical Specification

Voltage Core:1.1V ~ 1.3V
I/O:2.7V ~ 3.3V
I/O:1.6V ~ 2.0V(optional)
Power Consumption 35mW@3.3V(Continuous tracking)


Operating -40°C ~ +85°C
Storage -45°C ~ +90°C
RoHS compliant


FBGA-57: 5.0mm×5.0mm
Internal SPI Flash


Accuracy 20ns@1σ

Application Area