Related Manuals for unicore UM980
Summary of Contents for unicore UM980
- Page 1 INSTALLATION AND OPERATION USER MANUAL WWW.UNICORE.COM UM980 BDS/GPS/GLONASS/Galileo/QZSS All-constellation Multi-frequency Module High Precision RTK Positioning Copyright© 2009-2024, Unicore Communications, Inc. Data subject to change without notice.
- Page 2 Added PPP accuracy in section 1.2 2023-09 Updated section 3.3 Power-on and Power-off; R1.4 2024-03 Added the placement direction of UM980 in Figure 5-3 Added the sensitivity specification; R1.5 2024-09 Added requirements for the RSV and NC pins; modified pin 35...
- Page 3 Information, such as product specifications, descriptions, features and user guide in this manual, are subject to change by Unicore at any time without prior notice, which may not be completely consistent with such information of the specific product you purchase.
- Page 4 Foreword This document describes the information of the hardware, package, specification and the use of Unicore UM980 modules. Target Readers This document applies to technicians who possess the expertise on GNSS receivers.
- Page 5 UM980 User Manual Contents Introduction ....................1 Key Features ........................2 Key Specifications ......................2 Block Diagram ........................5 Hardware ....................6 Pin Definition ........................6 Electrical Specifications ....................10 2.2.1 Absolute Maximum Ratings ..................10 2.2.2 Operating Conditions ....................10 2.2.3 IO Threshold .......................
- Page 6 1 Introduction UM980 is a new generation of GNSS high precision RTK positioning module from Unicore. It supports all constellations and all frequencies, and can simultaneously track GPS, BDS, GLONASS, Galileo, QZSS, NavIC and SBAS. The module is mainly used in surveying and mapping, precise agriculture, UAVs, and autonomous robots.
- Page 7 UM980 User Manual 1.1 Key Features Based on the new generation GNSS SoC -NebulasⅣ , with RF-baseband and high precision algorithm integrated All-constellation multi-frequency RTK engine and advanced RTK processing technology Instantaneous RTK initialization technology 60 dB narrowband anti-jamming and jamming detection ...
- Page 8 Performance Horizontal: 1.5 m Single Point Positioning (RMS) Vertical: 2.5 m Horizontal: 0.4 m DGPS (RMS) Vertical: 0.8 m Positioning Accuracy Horizontal: 0.8 cm + 1 ppm RTK (RMS) Vertical: 1.5 cm + 1 ppm Horizontal: 5 cm PPP (RMS) Vertical: 10 cm Observation Accuracy (RMS) GLONASS...
- Page 9 UM980 User Manual Velocity Accuracy (RMS) 0.03 m/s Acquisition: -148 dBm Sensitivity Tracking: -160 dBm Cold Start < 12 s Time to First Fix (TTFF) Hot Start < 4 s Initialization Time < 5 s (Typical) Initialization Reliability > 99.9%...
- Page 10 NebulasIV SoC (UC9810) NebulasIV (UC9810) is Unicore’s new generation high precision GNSS SoC with 22 nm low power design, supporting all constellations all frequencies and 1408 super channels. It integrates a dual-core CPU, a high speed floating point processor and an RTK co-processor, which can fulfill the high precision baseband processing and RTK positioning independently.
- Page 11 UM980 User Manual External Interfaces The external interfaces of UM980 include UART, I , SPI , CAN , PPS, EVENT, RTK_STAT, PVT_STAT, ERR_STAT, RESET_N, etc. 2 Hardware 2.1 Pin Definition TXD1 TXD2 RXD1 RXD2 Top View ERR_STAT RESET_N RTK_STAT...
- Page 12 Description — Ground ANT_DETECT Antenna signal detection ANT_OFF Disable external LNA Antenna short circuit detection; ANT_SHORT_N active low VCC_RF External LNA power supply SPIS_CSN Chip select pin for SPI slave Master Out / Slave In. This pin is used to SPIS_MOSI receive data in slave mode.
- Page 13 UM980 User Manual Description RTK status: active high; RTK_STAT outputs high for RTK fixed solution and low for other positioning status or no positioning Error status: active high; ERR_STAT outputs high when failing self-test, and low when passing self-test —...
- Page 14 Description Power supply — No connection inside; leave floating When the main power supply VCC is cut off, V_BCKP supplies power to RTC and relevant register. Level requirement: 2.0 V ~ 3.6 V, and V_BCKP the working current should be less than 60 μA at 25 °...
- Page 15 UM980 User Manual Description — No connection inside; leave floating Pulse per second, with adjustable pulse width and polarity — No connection inside; leave floating 2.2 Electrical Specifications 2.2.1 Absolute Maximum Ratings Table 2-2 Absolute Maximum Ratings Parameter Symbol Min.
- Page 16 Parameter Symbol Min. Typ. Max. Unit Condition Working Current VCC=3.3 V VCC_RF Output Voltage VCC_RF VCC-0.1 VCC_RF Output Current ICC_RF Operating Temperature ° C Power Consumption 2.2.3 IO Threshold Table 2-4 IO Threshold Parameter Symbol Min. Typ. Max. Unit Condition Low Level in_low Input Voltage...
- Page 17 UM980 User Manual 2.3 Dimensions Table 2-6 Dimensions Parameter Min. (mm) Typ. (mm) Max. (mm) 21.80 22.00 22.50 16.80 17.00 17.50 2.40 2.60 2.80 3.75 3.85 3.95 0.95 1.05 1.15 1.80 1.90 2.00 1.00 1.10 1.20 0.70 0.80 0.90 1.40 1.50...
- Page 18 Figure 2-2 UM980 Mechanical Dimensions...
- Page 19 R1: 10 kΩ resistor is recommended 3.2 Antenna Feed Design UM980 just supports feeding the antenna from the outside of the module rather than from the inside. It is recommended to use devices with high power and that can withstand high voltage. Gas discharge tube, varistor, TVS tube and other high-power protective devices may also be used in the power supply circuit to further protect the module from lightning strike and surge.
- Page 20 ANT_BIAS to reduce the possibility of module damage. ANT_BIAS ANT_IN VCC_RF Figure 3-2 UM980 External Antenna Feed Reference Circuit Notes: L1: feed inductor, 68 nH RF inductor in 0603 package is recommended ...
- Page 21 UM980 User Manual 3.3 Power-on and Power-off The VCC initial level when power-on should be less than 0.4 V. The VCC ramp when power-on should be monotonic, without plateaus. The voltages of undershoot and ringing should be within 5% VCC.
- Page 22 3.5 Recommended PCB Package Design See the following figure for the recommended PCB package design. Figure 3-4 Recommended PCB Package Design Notes: For the convenience of testing, the soldering pads of the pins are designed long, exceeding the module border much more. For example: The pads denoted as detail C are 1.79 mm longer than the module border.
- Page 23 UM980 User Manual 4 Production Requirement Recommended soldering temperature curve is as follows: Rising Preheating Reflux Cooling ° C Peak 245 ° C 40~60s 60~120s Max. 4° C/s Max. 3° C/s Time (s) Figure 4-1 Soldering Temperature (Lead-free) Temperature Rising Stage Rising slope: Max.
- Page 24 Figure 5-1 Label Description 5.2 Product Packaging The UM980 module uses carrier tape and reel (suitable for mainstream surface mount devices), packaged in vacuum-sealed aluminum foil antistatic bags, with a desiccant inside to prevent moisture. When using reflow soldering process to solder modules, please strictly comply with IPC standard to conduct temperature and humidity control on the modules.
- Page 25 UM980 User Manual Figure 5-2 UM980 Package Reel Feed Direction Cover Tape Carrier Tape Dimensions 0.35 1.75± 0.10 20.20± 0.10 40.40± 0.10 2.00± 0.10 17.8 0.10 1.50 - + 0.00 330*180*44mm +0.10 1.50 4.00± 0.10 -0.00 10Po 40.00± 0.20 44.00± 0.30 C(3:1) 24.00±...
- Page 26 30% circle is lavender (see Figure 5-5), you must bake the module until it turns to blue. The UM980 is rated at MSL level 3. Please refer to the IPC/JEDEC J-STD-033 standards for the package and operation requirements. You may also access to the website www.jedec.org to get more information.
- Page 27 和芯星通科技（北京）有限公司 Unicore Communications, Inc. 北京市海淀区丰贤东路 7 号北斗星通大厦三层 F3, No.7, Fengxian East Road, Haidian, Beijing, P.R.China, 100094 www.unicore.com Phone: 86-10-69939800 Fax: 86-10-69939888 info@unicorecomm.com www.unicore.com...
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