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UM620A

UM620A

Automotive-grade Dual-frequency Multi-System GNSS Positioning Module

UM620A is an automotive-grade GNSS dual- frequency navigation module developed by Unicore Communications for the automotive market. Based on the proprietary multi-system dual-frequency high-performance SoC-UC6580A, the module supports multi-system dual-frequency positioning, multi-system single-frequency positioning, or single-system standalone positioning, ensuring high positioning accuracy even in complex environments such as multi- path surroundings.


Ordering Information

Supply at multiples of 500 pieces


um620a

Product Characteristics

  • Automotive grade dual-frequency navigation and positioning module

  • Supports  GPS L1 C/A, L5; BDS B1I, B1C*, B2a; GLONASS G1; Galileo E1, E5a; NavIC L5*; QZSS and SBAS

  • Supports multi-system dual-frequency positioning, multi-system single-frequency

  • positioning, or single-system standalone positioning

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

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


Technical Specifications

Performance Specifications



Channel
96 channels, based on UFirebird II
FrequencyGPS L1C/A , L5
BDS B1I, B1C*, B2a
GLONASS G1
Galileo E1, E5a
NavIC L5*
QZSS L1, L5
SBAS
ModesSingle-System Standalone Positioning
Multi-System Joint Positioning
Time to First Fix (TTFF)1Cold Start < 26 s
Hot Start < 2 s
Re-acquisition < 2 s
Positioning Accuracy (CEP)1Horizontal: 1.5 m(Dual-frequency quad-system )
Velocity Accuracy (RMS)20.05 m/s
1PPS20ns
SensitivityGNSS
Tracking            -162 dBm
Cold Start         -148 dBm
Hot Start           -158 dBm
Reacquisition    -160 dBm
Update Rate
1 Hz / 5 Hz* / 10 Hz*
Data FormatNMEA 0183, Unicore



Physical Specifications

Dimensions

12.2 x 16.0 x 2.4 mm

Package

24 pin, SMD

Temperature

Operating -40 °C ~ +85 °C

Storage -40 °C ~ +85 °C


Electrical Specifications

Voltage2.7V ~ 3.6 V DC
LNA2.7V ~ 3.3 V, <100 mA
Power Consumption3150 mW


Functional Ports

2 × UART (LVTTL)
1 × I2C*
1 × SPI*
1 × 1PPS (LVTTL)


Functional Characteristics

Passive Antenna, Active Antenna
AGNSS*

Note: Items marked with * are only supported by specific firmware.

1 Open sky

2 68% at 30 m/s for dynamic operation，open sky

3 Open sky, continuous tracking



Download

UM620A_Product_Brief_En
11/03/2025
VIEW
UM620 Series Modules_User Manual_EN_R2.1
27/02/2024
VIEW
UM620 Series_Hardware Reference Design_EN_R2.1
27/02/2024
VIEW
UFirebirdII Series Protocol Specification_EN_R1.2
07/01/2025
VIEW
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