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 NV


BDS/GPS Automotive Grade Navigation/Positioning Module

Brief Introduction

UM220-III NV is a BDS/GPS dual-system module designed for automotive navigation and positioning. UM220-III N is the third generation of UM220 series module, based on Unicore GNSS SoC HumbirdTM. With its compact features and reliable performance, UM220-III NV is most suitable for applications requiring high performance and high quality positioning.

Product Characteristics

• In support of the single system independent positioning and multi-system interoperation

• Compatible with Mainstream GPS Module, Cost saving

• SMD surface-mount technology makes it easy for users production


Data Manual

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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 Accuracy 2(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  -154dBm -154dBm

Physical Specifications

Dimensions 16.0 x 12.2 x 2.4mm Temperature  -40°C~+85°C
Package 24 pin SMD Operating  -45°C~+90°C

Electrical Specifications

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

Functional Ports

Order Number 2 x UART / 1 x I2C / 1 x SPI
/ 1 x Event / 1 x 1PPS
Data Output Unicore format

Functional Specification

Passive Antenna、Active Antenna
Note: Part marked with * is customizable
2 Typical conditions, <30m/s
3 Open sky, continuous tracking

Application Area