UM626N
Enhanced Dual-Frequency Multi-System RTK Module
UM626N is an enhanced dual-frequency multi-system centimeter-level RTK positioning module developed by ICOE. The module is based on ICOE next-generation RF baseband and high-precision algorithm integrated GNSS chip, built-in high-performance CPU, and integrated with double-precision floating-point processor and RTK dedicated coprocessor. It adopts advanced low-power consumption process and can achieve a 10Hz RTK positioning result output, providing centimeter-level high-precision positioning results. It can simultaneously support two working modes of base station and mobile station. The module supports communication interfaces such as UART, SPI, and I2C, which can be widely used in the field of high-precision applications for the consumer goods.
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Technical advantages
High precision
Supports dual-frequency multi-system on-chip RTK positioning solution, with positioning accuracy up to 1cm.
High update rate
The RTK update rate can reach up to 10Hz.
Observation quantity
Supports raw observation quantity output and can work in the base station mode.
Multi-mode
Supports dual-frequency raw observation quantity output and base station applications.
Low power design
The power consumption of dual-frequency RTK tracking is as low as 100mW.
Package
LCC: 12.2x16.0x2.4(mm), tape and reel packaging, 500pcs/reel.
Product Specifications
Technical performance
Constellations
BBDS: B1I、B1C*、B2a、B2b*
GPS: L1C/A、L5
GLONASS: L1
Galileo: E1、E5a
QZSS: L1C/A、L5
Positioning accuracy①
Single point positioning: RMS <1.0m (dual-frequency four systems, open sky)
RRTK positioning: RMS 1cm+1ppm (open sky)
Velocity accuracy: 0.1m/s
TTFF②
Cold Start ：24s
Hot Start：1s
Re-acquisition：1s
Sensitivity③④
Cold Start （dBm）：-148  
Hot Start（dBm）：-155
Tracking（dBm）：-164
Re-acquisition（dBm）：-155
Power Consumption
Capture: 100mW (dual-frequency four-system)
Tracking: 100mW (dual-frequency four-system)
Differential Data
RTCM V3.2/3.3
Initialization Time
＜5s(typical)
Initialization Reliability
＞99.9％
Update Rate
1Hz~10Hz
Data format
NMEA-0183, ICOE protocol
Observation Accuracy (RMS)
Satellite Frequency PointsBDSGPSGLONASSGalileo
B1I/BIC*/L1C/A/E1/G1 Pseudo-range30cm30cm50cm30cm
B1I/BIC*/L1C/A/E1/G1 Carrier phase2mm2mm2mm2mm
B2a/L5/E5a Pseudo-range10cm10cm
10cm
B2a/L5/E5a Carrier phase2mm2mm
2mm
Other
Main Power Supply
2.7V~3.6V
Communication Interface
UARTⅹ2，I2C*ⅹ1，SPI*ⅹ1
MSL
3-level
Working & Storage
-40℃~+85℃
Package
LCC: 12.2x16.0x2.4(mm), tape and reel packaging, 500pcs/reel.
Note:
①Simulated 33m/s linear motion scenario under a simulator
②Tested under instrument with satellite signal strength of -130dBm
③Tested under CN0 of 41dB/Hz condition at -130dBm
④Tested under external LNA conditions
*Indicates that this feature is under development
(The detailed parameters of the product shall be subject to the latest version of the product datasheet)
Application Scenarios
UAV
Reference station
Lawn mowers
Smart agriculture
Safety Helmet
Vehicle navigation
Smart grid