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-IV N

UM220-IV N

GPS/BDS Automotive Grade Navigation/Positioning Module

Brief Introduction

UM220-IV N is a GPS/BDS dual-system module designed for automotive navigation and positioning. UM220-IV N is based on Unicore GNSS SoC-UFirebird  .With its compact features and reliable performance, UM220-IV N is most suitable for applications requiring high performance and high quality positioning.

Product Characteristics

• Automotive grade, with AEC-Q100 compliant GNSS SoC
• Support GPS/BDS dual-system and single system positioning
• Anti-interference and low power design
• Support A-GNSS, D-GNSS
• Sompatible 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 1.0m CEP(DGNSS*)
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 : <29s Sensitivity BDS           GPS
Hot Start : 1s Cod Start -148dBm -146dBm
Acquisition : <1s Hot Start  -154dBm -153dBm
Update Rate Up to 10Hz Tracking -162dBm -162dBm
    Hot start/Reacquisition  -160dBm -160dBm

Physical Specifications

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

Electrical Specifications

Voltage 2.7V ~ 3.6 V DC
LNA 2.7V ~ 3.3 V, <100mA
Power Consumption3 16mW@3.0V

Functional Ports

2 x UART, 1 x Event
1 x 1PPS, 1 x SPI, 1xI2C

Functional Specification

Passive Antenna, Active Antenna,

Application Area