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
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
