UM680A

Automotive Grade Multi-GNSS Dual-frequency High Precision RTK Positioning Module

UM680A is a high precision GNSS dual-frequency navigation car gps module developed by Unicore for the intelligent driving market. Based on the proprietary multi-system dual-frequency high-performance SoC-UC6580A, the module supports multi-system dual-frequency joint positioning with centimeter-level accuracy, and it operates at temperatures up to 105 °C.



Ordering Information



Supply at multiples of 250 pieces



Product Characteristics

Supports concurrent operation of vechicle gps, BDS, GLONASS and Galileo



Dual-frequency single point positioning, providing higher accuracy and reliability



compared to single-frequency solution



Supports A-GNSS to reduce the TTFF



GNSS chip qualified according to AEC-Q100 and production process conforms to IATF16949



Anti-jamming design to ensure the module working stably in complex electromagnetic environment



Centimeter-level positioning accuracy raw data output



Technical Specifications



Performance Specifications



Channel 96 channels, based on UFirebirdII

Frequency GPS L1C/A, L5

BDS B1I, B1C, B2a

GLONASS G1

Galileo E1, E5a

NavIC L5

QZSS L1, L5

SBAS L1C/A

Modes Single-system standalone positioning

Multi-system joint positioning

Time to First Fix TTFF Cold Start: ? 26 s

Hot Start: ? 2 s

Re-acquisition : ? 2 s

DGNSS RMS Horizontal: 1.5 m open sky

Vertical: 2.5 m open sky

RTK RMS Horizontal: 1 cm 1 ppm open sky

Vertical: 1 cm 1 ppm open sky

Velocity AccuracyRMS1 0.05 m/s

1PPS 20 ns

Sensitivity GNSS BDS GPS GLONASS Galile

Tracking: -162 dBm

Cold start: -147 dBm

Hot Start?-157 dBm

 Reacquisition: -158 dBm

Data Update Rate 1 Hz / 5 Hz / 10 Hz

Correction RTCM V3.X

Data Format NMEA 0183, Unicore





Physical Specifications

Dimensions 22.0 x 17.0 x 2.6 mm

Package 54 pin, LGA

Operating Temperature -40°C 85 °C / 105 °C

Storage Temperature -40°C 85 °C /105 °C



Electrical Specifications

Voltage 2.7 V 3.6 V DC

LNA Feed Power 2.7 V to 3.3 V, 100 mA

Power Consumption 270 mW



Interfaces

2 × UARTLVTTL

1 × I2C

1 × SPI

1 × 1PPSLVTTL



Functional Characteristics

Passive Antenna, Active Antenna, AGNSS

NOTE: Supported by specific firmware

             1 Open sky, continuous tracking



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