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-INS N

UM220-INS N

BDS/GPS+MEMS Dual System Inertial Navigation Module

Brief Introduction

UM220-INS N is a BDS/GPS+MEMS dual-system module designed for In-dash automotive navigation and high-end navigation, based on Unicore Low power GNSS SoC UC221.With its built in 6 axis MEMS, and the support of BDS+GPS,UM220-INS N can output GNSS+MEMS inertial positioning result, most suitable for applications requiring high accuracy, high reliability, and high continuity positioning.

Product Characteristics


• Directly output inertial navigation data(support NMEA0183)

• ISO/TS-16949 certified product line

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

• -40℃~+85℃ operating temperature



Data Manual

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Technical Index

Performance Specifications

Channel Based on 64-Channel SoC -Humbird Accuracy (RMS) 2.5m CEP (Dual-System)
Frequency BDS B1 <5% x driving distance(inertial
GPS L1 navigation, without GNSS signal)
Modes Single System Positioning 2.0m CEP (SBAS)*
Multi-System Positioning Velocity Accuracy2(RMS) GPS/GNSS: 0.1m/s
Time to First Fix(TTFF) Cold Start: 30s BDS : 0.2m/s
Hot Start: 1s 1PPS Support
Reacquisition: <1s Sensitivity  BDS         GPS
Update Rate 1~5Hz Tracking   -160dBm   -160dBm
    Acquisition  -145dBm   -147dBm
  Hot start/Reacquisition -154dBm   -154dBm

Physical Specifications

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

Electrical Specifications

Voltage 2.7V ~ 3.6 V DC
LNA 2.7V ~ 3.3 V, <100mA
Power Consumption3 150mW

Functional Ports

2 x UART / 1 x SPEED / 1 x FWD / 1 x Event / 1 x 1PPS
Data Output NMEA 0183
Unicore format

Functional Specification

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

Application Area