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 > UM220-III NL


BDS/GPS Dual-system Navigation/Positioning module

Brief Introduction

UM220-III NL is a BDS/GPS dual-system module designed for auto aftermarket such as vehicle monitoring and navigation. It is also a good choice for handheld devices, and balloon sounding applications.

UM220-III NL is the third generation of UM220 series module, based on Unicore Low power GNSS SoC (HumbirdTM)1, and is by far the smallest domestic BDS/GPS module in the market. It is most suitable for large volume GNSS applications requiring small size and low cost.

Product Characteristics

• Small size and light in weight
• Ultra-low power (120mW)
• In support of the single system independent positioning and multi-system interoperation
• BDS/GPS in single chip, able to send NMEA data without Auxiliary CPU
• SMD surface-mount technology makes it easy for users production

Data Manual

Tip: Right-click the link for the item you want to save, and then click Save Target As.

Technical Index

Performance Specifications

Channel Based on 64-Channel SoC - Humbird Positioning Accuracy 2.5m CEP(Dual-System)
Frequency BDS B1 2.0m CEP(SBAS) *
GPS L1 Velocity Accuracy2(RMS) GNSS/GPS: 0.1m/s 1sigma
Modes Single System Positioning BDS: 0.2m/s 1sigma
Multi-System Positioning 1PPS Support
Time to First Fix(TTFF) Cold Start : 30s Sensitivity BDS           GPS
Hot Start : 1s Tracking  -160dBm   -160dBm
Acquisition : <1s Acquisition  -145dBm   -147dBm
Update Rate 1Hz Hot start/Reacquisition  -150dBm   -150dBm

Physical Specifications

Dimensions 16 x 12.2 x 2.4mm Temperature  -45°C~+90°C
Package 24 pin SMD Operating  -40°C~+85°C

Electrical Specifications

Voltage 2.7V ~ 3.6 V DC
LNA 2.7V ~ 3.3 V, <100mA
Power Consumption3 120mW

Functional Ports

Order Number 1 x UART / 1 x 1PPS
Data Output Unicore format

Functional Specification

Passive Antenna、Active Antenna

Application Area