UM620A is an automotive-grade GNSS dual- frequency navigation module developed by Unicore Communications for the automotive market. Based on the proprietary multi-system dual-frequency high-performance SoC-UC6580A, the module supports multi-system dual-frequency positioning, multi-system single-frequency positioning, or single-system standalone positioning, ensuring high positioning accuracy even in complex environments such as multi- path surroundings.
Ordering Information
Supply at multiples of 500 pieces
Automotive grade dual-frequency navigation and positioning module
Supports GPS L1 C/A, L5; BDS B1I, B1C*, B2a; GLONASS G1; Galileo E1, E5a; NavIC L5*; QZSS and SBAS
Supports multi-system dual-frequency positioning, multi-system single-frequency
positioning, or single-system standalone positioning
GNSS chip qualified according to AEC-Q100 and productition process conforms to IATF16949
Anti-jamming design to ensure the module working stably in complex electromagnetic environments
Channel | 96 channels, based on UFirebird II | |
Frequency | GPS L1C/A , L5 | |
BDS B1I, B1C*, B2a | ||
GLONASS G1 | ||
Galileo E1, E5a | ||
NavIC L5* | ||
QZSS L1, L5 | ||
SBAS | ||
Modes | Single-System Standalone Positioning | |
Multi-System Joint Positioning | ||
Time to First Fix (TTFF)1 | Cold Start < 26 s | |
Hot Start < 2 s | ||
Re-acquisition < 2 s | ||
Positioning Accuracy (CEP)1 | Horizontal: 1.5 m(Dual-frequency quad-system ) | |
Velocity Accuracy (RMS)2 | 0.05 m/s | |
1PPS | 20ns | |
Sensitivity | GNSS | |
Tracking -162 dBm | ||
Cold Start -148 dBm | ||
Hot Start -158 dBm | ||
Reacquisition -160 dBm | ||
Update Rate | 1 Hz / 5 Hz* / 10 Hz* | |
Data Format | NMEA 0183, Unicore |
Dimensions | 12.2 x 16.0 x 2.4 mm |
Package | 24 pin, SMD |
Temperature | Operating -40 °C ~ +85 °C |
Storage -40 °C ~ +85 °C |
![]() | 2.7V ~ 3.6 V DC |
LNA | 2.7V ~ 3.3 V, <100 mA |
Power Consumption3 | 150 mW |
Functional Ports
2 × UART (LVTTL) | |
1 × I2C* | |
1 × SPI* | |
1 × 1PPS (LVTTL) |
Passive Antenna, Active Antenna |
AGNSS* |
Note: Items marked with * are only supported by specific firmware.
1 Open sky
2 68% at 30 m/s for dynamic operation,open sky
3 Open sky, continuous tracking