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UM680A
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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 Accuracy(RMS)1

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</span>

Power Consumption

270 mW

Interfaces

2 × UART(LVTTL)

1 × I2C*

1 × SPI*

1 × 1PPS(LVTTL)

Functional Characteristics

Passive Antenna, Active Antenna, AGNSS *

NOTE: * Supported by specific firmware

1 Open sky, continuous tracking

For more information about gnss board, please feel free to contact us!

Location : F3, BDStar Navigation Building, No.7, Fengxian East Road, Haidian, Beijing, P.R.China,100094, 100094 Beijing,
Contact : comm unicore, +86 10 69939800

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