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UM761

UM761

Industrial-grade Multi-GNSS Single-Frequency Integrated Positioning Module

UM761 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 (UC7510I), and with the built-in six-axis inertial measurement unit, the modules support multi-constellation 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


UM761-head

Product Characteristics

  • 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


UM761

Performance Specifications



Channel
64 channels, based on UFirebird IV
FrequencyGPS L1C/A 
BDS B1I, B1C*
GLONASS G1
Galileo E1B/C
QZSS L1C/A, L1C/B*, L1S
SBAS  L1C/A*
ModesSingle-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 GNSSADR  < 2% of distance traveled (without GNSS for 120 s)
UDR  < 5% of distance traveled (without GNSS for 120 s)
Data Update RateGNSS only or GNSS + INS    1 Hz / 5 Hz / 10 Hz
IMU raw data output           50 Hz /100 Hz
Velocity Accuracy (RMS)10.05 m/s (open sky)
1PPS20ns
SensitivityGNSS
Tracking             -165 dBm
Cold Start           -148 dBm
Hot Start             -156 dBm
Reacquisition    -160 dBm
Data FormatNMEA 0183, Unicore



Physical Specifications

Dimensions

12.2 x 16.0 x 2.4 mm

Package

24 pin, LCC

Temperature

Operating -40 °C ~ +85 °C

Storage -45 °C ~ +90 °C


Electrical Specifications

Voltage2.7V ~ 3.6 V DC
LNA2.7V ~ 3.3 V, <100 mA


Functional Ports

1 × UART (LVTTL)
1 × FWD
1 × SPEED
1 × 1PPS (LVTTL)


Functional Characteristics

Passive Antenna, Active Antenna
AGNSS

Note: * Supported by specific firmware.

1 95% at 30 m/s for dynamic operation,open sky



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