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UM670A Automotive Grade GNSS Navigation and Positioning Module

UM670A is a GNSS dual -frequency navigation module developed by Unicore for the intelligent driving market.  Based on the proprietary multi -system dual-frequency high-performance SoC - UC6580A, the Module supports concurrent operation of GPS, BDS, GLONASS*, Galileo, QZSS and NavIC*. Different sub-models use different  frequencies (L1+L5 or L1+L2) to perform single point positioning and also provide raw data output.

Ordering Information

Supply at multiples of 250 pieces

Technical Specifications

Supports concurrent operation of GPS, BDS, GLONASS and Galileo

Dual-frequency single point positioning, providing higher accuracy and reliability compared to single-frequency solution 

Supports A-GNSS to reduce the TTFF

GNSS chip qualified according to AEC-Q100 and production process conforms to IATF16949

Anti-jamming design to ensure the module working stably in complex electromagnetic environment

Supports raw data output

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Product Description

Performance Specifications

Channel96 channels, based on UFirebird II
Frequency

UM670A-03:

BDS B1I/BIC*+B2I 

GPS L1C/A + L5

Galileo E1 + E5a

GLONASS G1*  

QZSS L1 + L5

NavIC L5* 

SBAS L1C/A

UM670A-23:

BDS B1I/BIC*+B2a

GPS L1C/A + L2C

Galileo E1 + E5b

GLONASS G1*+G2*

QZSS L1 + L2

SBAS L1

VSWR≤ 2.5
Input Impedance50 Ω
Antenna Gain15 dB ~ 30 dB
Time to First FixCold Start < 26 s
(TTFF)

Hot Start < 2 s

Reacquisition < 2 s

Positioning Accuracy

Horizontal: 1.5 m(open sky)

Vertical: 2.5 m (open sky)

Velocity Accuracy (CEP95)0.05m/s(open sky)
1PPS Accuracy (RMS) 20 ns
SensitivityBDS+GPS+GLONASS+Galileo
Tracking-162 dBm
Cold Start-147 dBm
Hot Start-157 dBm
Reacquisition-158 dBm
Data Update Rate1 Hz / 5 Hz / 10 Hz
CorrectionRTCM V3.X
Data Format

NMEA 0183, Unicore


Physical Specifications

Dimensions22.0 x 17.0 x 2.6 mm
Package54 pin, LGA
Operating Temperature-40℃ ~ + 105℃
Storage Temperature-40℃ ~ + 105℃


Electrical Specifications

Voltage2.7 V ~ 3.6 V DC
LNA2.7 V ~ 3.3 V, < 100 mA
Power Consumption150 mW


Environmental Specifications

Humidity95% No condensation
VibrationGB/T 28046.3; ISO 16750.3
Shock

GB/T 28046.3; ISO 16750.3


Interfaces

1 x UART*(LVTTL)

1 x I2C*

1 x SPI*

1 x 1PPS

RESET_N

1 × 1PPS (LVTTL)



Antenna

GNSS antenna × 1

Note: * Supported by specific firmware

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