UM761A series modules are GNSS + IMU integrated positioning and navigation modules independently developed by Unicore Communications. Based on the multi-constellation, single-frequency and high- performance GNSS SoC – UFirebird IV (UC7510A), and with the built-in six-axis inertial multi-constellation, the modules support multiconstellation single-frequency joint positioning, and can directly output GNSS + IMU integrated positioning results, which ensures continuous positioning even in tunnels and underground garages.This module can be used with terminal devices to achieve Android Auto and CarPlay certification.
Ordering Information
Supply at multiples of 500 pieces
Supports BDS B1I, B1C; GPS L1 C/A; GLONASS G1; Galileo E1B/C; QZSS and SBAS
Built-in 6-axis IMU, with 50Hz/100Hz IMU raw data output
Supports odometer pulse input/vehicle speed input
100% continuous navigation even in tunnels or underground parking lots
Supports the output of GNSS+IMU integrated positioning results and GNSS-only positioning results through one serial port
GNSS chip qualified according to AEC-Q100 and production process conforms to IATF16949
| Channel | 64 channels, based on UFirebird IV | |
| Frequency | GPS L1C/A | |
| BDS B1I, B1C* | ||
| GLONASS G1 | ||
| Galileo E1B/C | ||
| QZSS L1C/A, L1C/B*, L1S | ||
| SBAS L1C/A* | ||
| Modes | Single-System Standalone Positioning | |
| Multi-System Joint Positioning | ||
| Time to First Fix (TTFF) | Cold Start < 26 s | |
| Hot Start < 1 s | ||
| Reacquisition < 1 s | ||
| Positioning Accuracy (CEP) | Horizontal: 1.5 m* (with SBAS) | |
| Vertical: 2.0 m (without SBAS) | ||
| INS Positioning Error without GNSS | ADR < 2% of distance traveled (without GNSS for 120 s) | |
| UDR < 5% of distance traveled (without GNSS for 120 s) | ||
| Data Update Rate | GNSS only or GNSS + INS 1 Hz / 5 Hz / 10 Hz | |
| IMU raw data output 50 Hz /100 Hz | ||
| Velocity Accuracy (RMS)1 | 0.05 m/s (open sky) | |
| 1PPS | 20ns | |
| Sensitivity | GNSS | |
| Tracking -165 dBm | ||
| Cold Start -148 dBm | ||
| Hot Start -156 dBm | ||
| Reacquisition -160 dBm | ||
| 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 ~ +90 °C |
| 2.7V ~ 3.6 V DC | |
| LNA | 2.7V ~ 3.3 V, <100 mA |
| Power Consumption3 | 150 mW |
Functional Ports
| 1 × UART (LVTTL) | |
| 1 × FWD | |
| 1 × SPEED | |
| 1 × 1PPS (LVTTL) |
| Passive Antenna, Active Antenna |
| AGNSS* |
Note: * Supported by specific firmware.
1 95% at 30 m/s for dynamic operation,open sky