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