UFirebird II is a dual-frequency multi-constellation GNSS SoC with low power consumption and miniature design developed by Unicore Communications. It integrates RF and baseband on a single chip, adopts multi-path mitigation technology, anti-jamming technology and high -precision GNSS positioning technology. UFirebird II supports GPS, GLONASS, BDS, Galileo, NAVIC and QZSS multi-constellation joint positioning, and also supports SBAS signal processing, providing fast and accurate positioning service. It is suitable for vehicle navigation, robotic applications, UAVs, and handheld devices, with excellent performance especially in urban multi-path environment.
Ordering Information
Supply at multiples of 3000 pieces
96 channels
Compact size, low power design, 5 × 5 mm QFN40 package
Supports GPS, BDS, GLONASS, Galileo, QZSS and SBAS, including BDS-3; supports single system standalone positioning and multi-system joint positioning
L1+L5 dual frequencies, excellent multi-path mitigation ability
Single point positioning accuracy better than 1.5 m
Ultra high sensitivity: tracking -162 dBm, acquisition -148 dBm
Industrial grade & automotive grade, and the automotive grade chip qualified according to AEC-Q100
Supports A-GNSS and DGNSS
| Channels | ||
| Constellations | GPS L1C/A, L5 | |
| BDS B1I, B1C, B2a | ||
| Galileo E1, E5a | ||
| GLONASS G1 | ||
| QZSS L1C/A,L1S,L5 | ||
| SBAS L1C/A | ||
Single Point Positioning(RMS) | Horizontal: 1.5 m | |
| Vertical: 2.5 m | ||
| Velocity Accuracy (RMS)* | ||
| Time Accuracy (RMS) | 20 ns, peak-to-peak value 30 ns (24h) | |
| Time to First Fix (TTFF) | Cold Start < 26 s | |
| Hot Start < 2 s | ||
| Sensitivity | Tracking: -162 dBm | |
| Cold Start: -148 dBm | ||
| Hot Start: -156 dBm | ||
| Reacquisition: -160 dBm | ||
| Update Rate | GNSS 1 Hz / 5 Hz / 10 Hz | |
| Differential Data | RTCM V3.X | |
| Data Format | NMEA-0183, Unicore | |
| Power Supply | VCC: 1.7 ~ 3.6 V | |
| VIO: 1.7 ~ 3.6 V | ||
| Vbackup: 1.7 ~ 3.6 V | ||
| Power Consumption @3V | < 40 mA | |
| Interfaces | 2 × UART(LVTTL) | |
| 1 × I2C | ||
| 1 × SPI* | ||
| Product | Package | Flash | Operating Temp. | Grade | |
![]() | UC6580A | QFN40 5.0 × 5.0 × 0.85 mm | Yes | -40 ~ + 105 °C | Automotive |
![]() | UC6580I | QFN40 5.0 × 5.0 × 0.85 mm | Yes | -40 ~ + 85°C | Industrial |
Note: Items marked with * are supported by specific firmware.