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Summary of Contents for UNICORECOMM UM980
- Page 1 INSTALLATION AND OPERATION USER MANUAL WWW.UNICORECOMM.COM UM980 BDS/GPS/GLONASS/Galileo/QZSS All-constellation Multi-frequency Module High Precision RTK Positioning Copyright© 2009-2022, Unicore Communications, Inc. Data subject to change without notice.
- Page 2 Unicore holds the trademarks of “和芯星通”, “UNICORECOMM” and other trade name, trademark, icon, logo, brand name and/or service mark of Unicore products or their product serial referred to in this manual (collectively “Unicore Trademarks”).
- Page 3 UM980 User Manual 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.
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Page 5: Table Of Contents
2.3.2 Operating Conditions ....................12 2.3.3 IO Threshold ....................... 13 2.3.4 Antenna Feature ......................13 Hardware Design ..................14 UM980 Minimal Design ....................14 Antenna Feed Design ....................14 Grounding and Heat Dissipation ................. 16 Power-on and Power-off ..................... 16 Production Requirement................ -
Page 6: Introduction
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 BDS B1I/B2I/B3I/B1C/B2a/B2b , GPS L1/L2/L5, GLONASS G1/G2/G3 , Galileo E1/E5a/E5b/E6 , QZSS L1/L2/L5, and SBAS. -
Page 7: Key Features
UM980 User Manual Key Features Based on the new generation GNSS SoC -NebulasⅣ , with RF-baseband and high precision algorithm integrated 17 mm 22 mm mm, surface-mount device × × Supports all-constellation multi-frequency on-chip RTK positioning solution ... - Page 8 Performance Single Point Horizontal: 1.5 m Positioning Vertical: 2.5 m (RMS) Horizontal: 0.4 m Positioning Accuracy DGPS (RMS) Vertical: 0.8 m Horizontal: 0.8 cm + 1 ppm RTK (RMS) Vertical: 1.5 cm + 1 ppm Observation Accuracy (RMS) GLONASS Galileo B1I/B1C/L1C /L1 C/A/G1/E1 10 cm...
- Page 9 UM980 User Manual Warm Start < 20 s Hot Start < 5 s Initialization Time < 5 s (Typical) Initialization Reliability > 99.9% Data Update Rate 50 Hz Positioning Differential Data RTCM 3.X Data Format NMEA-0183, Unicore Physical Characteristics Package...
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Page 10: Block Diagram
SoC (UC9810) NebulasIV (UC9810) is UNICORECOMM’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: Hardware
UM980 User Manual 2 Hardware Dimensions Table 2-1 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... - Page 12 Figure 2-1 UM980 Mechanical Dimensions UC-00-M32 EN R1.1 Hardware...
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Page 13: Pin Definition
UM980 User Manual Pin Definition TXD1 TXD2 RXD1 RXD2 Top View ERR_STAT RESET_N RTK_STAT PVT_STAT EVENT Figure 2-2 UM980 Pin Definition Table 2-2 Pin Description Description — Ground ANT_IN GNSS antenna signal input — Ground ANT_DETECT Antenna signal detection ANT_OFF Disable external LNA Antenna short circuit detection;... - Page 14 Description 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. SPIS_CLK Clock input pin for SPI slave Master In / Slave Out. This pin is used to SPIS_MISO transmit data in slave mode.
- Page 15 UM980 User Manual Description — Reserved, recommended to be floating — No connection inside — No connection inside RXD2 COM2 input, LVTTL level TXD2 COM2 output, LVTTL level Built-in function; recommended to add a through-hole testing point and a 10 kΩ pull- —...
- Page 16 Description connect it to ground or leave it floating. — Ground — No connection inside — No connection inside — No connection inside — Ground TXD1 COM1 output, LVTTL level RXD1 COM1 input, LVTTL level C data C clock — No connection inside —...
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Page 17: Electrical Specifications
UM980 User Manual Electrical Specifications 2.3.1 Absolute Maximum Ratings Table 2-3 Absolute Maximum Ratings Parameter Symbol Min. Max. Unit Power Supply Voltage -0.3 Input Voltage -0.3 GNSS Antenna Signal Input ANT_IN -0.3 ANT_IN input Antenna RF Input Power power External LNA Power Supply VCC_RF -0.3... -
Page 18: Io Threshold
2.3.3 IO Threshold Table 2-5 IO Threshold Parameter Symbol Min. Typ. Max. Unit Condition Low Level in_low Input Voltage High Level VCC × 0.7 VCC + 0.2 in_high Input Voltage Low Level 0.45 = 2 mA out_low Output Voltage High Level VCC - = 2 mA out_high... -
Page 19: Hardware Design
R1: 10 kΩ resistor is recommended Antenna Feed Design UM980 just supports feeding the antenna from the external of the module rather than from the internal. 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 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 C1: decoupling capacitor, recommended to connect two capacitors of 100 nF/100 pF in parallel C2: DC blocking capacitor, recommended 100 pF capacitor ...
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Page 21: Grounding And Heat Dissipation
UM980 User Manual Grounding and Heat Dissipation Grounding and heat dissipation pad Figure 3-3 Grounding and Heat Dissipation Pad (Bottom View) The 48 pads in the rectangle in Figure 3-3 are for grounding and heat dissipation. In the PCB design, the pads should be connected to a large sized ground to strengthen the heat dissipation. -
Page 22: Production Requirement
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. 3 ° C/s ... -
Page 23: Packaging
Figure 5-1 Label Description 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 24 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 0.10 330*180*44mm 2.00 0.10 17.8 ∅ 1.50 + 0.10 0.00 ∅ +0.10 1.50 4.00 0.10 -0.00 10Po 40.00 0.20 44.00 0.30 C(3:1) Note: 24.00 0.10...
- Page 25 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 26 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.unicorecomm.com Phone: 86-10-69939800 Fax: 86-10-69939888 info@unicorecomm.com...
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