Related Manuals for UNICORECOMM UM220-IV L
Summary of Contents for UNICORECOMM UM220-IV L
- Page 1 INSTALLATION AND OPERATION USER MANUAL WWW.UNICORECOMM.COM UM220-IV L Single Frequency Multi-GNSS Timing Module Copyright© 2009-2021, Unicore Communications, Inc. Data subject to change without notice.
- Page 2 Before placing an order, please contact our company or local distributors for the latest specifications. * Unicore Communications, UNICORECOMM, UFirebird and its logo have been applied for trademark registration by Unicore Communications, Inc. Other names and brands are the property of their respective owners.
- Page 3 UM220-IV L User Manual Foreword This document describes the product features and information of the hardware design, installation, specification and the use of UNICORECOMM UM220-IV L module. Audience This manual is created for the technical personnel, who possess the expertise of GNSS...
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Page 4: Table Of Contents
Contents Contents ............................i Product Introduction ......................1 Overview ............................1 Features ............................2 Block Diagram ..........................2 Performance ........................... 3 Precision Timing and Raw Data Output ..................5 Pulses per Second (1PPS) ......................6 UART ............................... 7 Protocol ............................7 Clock ............................... - Page 5 UM220-IV L User Manual Clean ............................. 25 Reflow Soldering .......................... 25...
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Page 6: Product Introduction
1 Product Introduction Overview UM220-IV L is a GNSS multisystem, high-precision timing module, based on the low power, multisystem, high-performance SoC-UFirebird independently developed by UNICORECOMM. It supports GPS, BDS, GLONASS and Galileo, etc. Moreover, it is capable to receive and process data of two or three systems concurrently, or work on a single system. -
Page 7: Features
● ● ● ● ● ● ● ● IV L Block Diagram Power UM220-IV L Supply RESET_N UART Antenna Supply & GNSS IC Supervisor Antenna Supply TCXO Crystal Figure 1- 1 UM220-IV L Block Diagram UC-00-M15 EN R1 Product Introduction... -
Page 8: Performance
Performance Table 1- 2 Specifications Power Voltage 2.8~3.6VDC Power Consumption 62mW @3.0V RF Input VSWR Input Impedance 50Ω Antenna Gain 5 35dB Physical Characters Dimensions 17.0mm*22.4mm*2.4mm Weight 1.7g Environment Operating Temperature -40℃ ~ +85℃ Storage Temperature -40℃ ~ +85℃ RoHS2.0 Compliant Input/ Output Data Interface UART*2, LVTTL. - Page 9 UM220-IV L User Manual -160dBm -160dBm -158dBm -154dBm Tracking -155dBm -151dBm -150dBm -143dBm Hot Start -155dBm -151dBm -150dBm -140dBm Reacquisition 1PPS (RMS) 20ns Data Update Rate Format NMEA 0183 Unicore Protocol RTCM3.2 Open sky UC-00-M15 EN R1 Product Introduction...
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Page 10: Precision Timing And Raw Data Output
If the position of UM220-IV L antenna changes, the command CFGTM must be sent again to switch the timing mode back to the optimized position mode to recalibrate the antenna position. Refer to UM220-IV L_ Protocol Specification for more details. -
Page 11: Pulses Per Second (1Pps)
Pulses per Second (1PPS) UM220-IV L module provides a pulse width output and 1PPS signal of which the pulse polarity is adjustable, and can be configured and queried through CFGTP. TIMTP is used to describe the related 1PPS information including the corresponding time and time accuracy indicators. -
Page 12: Uart
Input, RTCM3.2 Clock The industrial TCXO is built into the UM220-IV L module to ensure the stability of the clock system and the ability to capture signals quickly in weak signal environments. UM220-IV L also integrates the 32k crystal to maintain the RTC clock. When the main power supply is removed, the normal operation of the RTC can be maintained by providing V_BCKP. -
Page 13: Installation
Carefully check the module for any apparent loose or damaged components. If there are any questions, please contact Unicore or the local distributors. Figure 2- 1 Typical Installation of UM220-IV L shows the typical installation of the UM220-IV L EVK. -
Page 14: Installation
Step 3. Select the GNSS antenna with the appropriate gain (the system frequency supported by the antenna should be consistent with the module) , fix it in the non-occluded area, and use the appropriate cable to connect the antenna and the UM220-IV L EB (evaluation board);... -
Page 15: Technical Specifications
UM220-IV L User Manual 3 Technical Specifications Electrical Specifications Table 3- 1 Absolute Maximum Ratings Parameter Symbol Units Condition Power Supply Voltage -0.5 VCC Maximum Ripple Vrpp Backup Power Supply Voltage V_BCKP -0.5 Antenna Bias Voltage V_ANT VCC_RF Voltage VCC_RF Input Pin Voltage -0.5... -
Page 16: Mechanical Specifications
Mechanical Specifications Table 3- 3 Dimensions Parameter Min (mm) Typical Value (mm) MAX (mm) 22.1 22.4 23.0 16.9 17.0 17.1 2.45 2.55 2.85 2.75 2.85 3.15 0.82 UC-00-M15 EN R1 Technical Specifications... -
Page 17: Pin Definition
UM220-IV L User Manual Figure 3- 1 Mechanical Layout Pin Definition Figure 3- 2 UM220-IV L Pin Assignment UC-00-M15 EN R1 Technical Specifications... - Page 18 Table 3- 4 Pin Definition Name Electrical Level Description COM2 is for data transmission. Firmware TXD2 LVTTL upgrade is not supported. Leave this pin floating if idle. COM2 is for data transmission. Firmware RXD2 LVTTL upgrade is not supported. Leave this pin floating if idle. COM1 is for data transmission.
- Page 19 UM220-IV L User Manual Name Electrical Level Description TIME PULSE LVTTL 1PPS, leave this pin floating if idle UC-00-M15 EN R1 Technical Specifications...
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Page 20: Pcb Packaging
PCB Packaging Figure 3- 3 UM220-IV L Recommended PCB Packaging unit: mm, in brackets: mil When designing PCB solder mask, make sure that the area under UM220-IV l module is completely coated with solder mask. UC-00-M15 EN R1 Technical Specifications... -
Page 21: Hardware Design
4 Hardware Design Power Supply VCC VCC is the main power supply of UM220-IV L module, which requires a good monotonic function when powering up, while undershoot and ringing should be guaranteed within 5% VCC. For the VCC to be powered back on after a power failure, the power failure time must exceed 10ms. If... -
Page 22: Active Antenna
The active antenna increases the system power consumption when improving the system performance. The 3.3V Power Supply (VCC) provided by the UM220-IV l module can be used to power the antenna directly if the function of detecting the state of the antenna inside the module is not used and the working voltage of the antenna is 3.3V. -
Page 23: Active Antenna State Detection
VCC_RF R1 10Ω 10nF Figure 4- 4 UM220-IV L Active Antenna Solution Powered by External Power Supply 4.2.3 Active Antenna State Detection UM220-IV L module can detect the active antenna state including open-circuit, short-circuit and normal state. The host computer enables or disables the antenna state detection function by transmitting commands via serial ports, and receives the detected antenna state via serial ports. - Page 24 VCC_RF 10nF Figure 4- 5 UM220-IV L Antenna Short-circuit Detection Powered by VCC_RF When the working voltage of the antenna is 5V, the antenna can be powered by connecting an external power supply with a 10Ω serial resistor to the V_ANT pin. Since this power supply is directly connected to the RF_IN pin of the module, this power supply cannot introduce noise.
- Page 25 10nF ANT_DET_N VCC_RF Figure 4- 6 UM220-IV L Antenna Short-circuit Detection Powered by External Power Supply Antenna Shot-circuit and Open-circuit Detection If the short-circuit and open-circuit detection functions of the module are required concurrently, use the ANT_DET_N pin to cooperate with an external circuit. The threshold current for open circuit detection can be calculated by formula (4-1).
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Page 26: Uart
5.5V to protect the ANT_DET_N pin, Use ANTSTAT to query the antenna state. UART The two serial ports of UM220-IV L are LVTTL levels, which need to be converted through RS232 level if connected to PC. UART1 RS232 1... -
Page 27: Time Pulse Output
Try to avoid circuits below the UM220-IV L module. UM220-IV L module is a temperature sensitive device, rapid temperature changes will result in reduced performance. Keep it as far away from the high-power high-temperature air and heating devices as possible. -
Page 28: Packaging
Figure 5- 1 Product Label Packaging Description UM220-IV L modules use carrier tape and reel (suitable for mainstream surface mount equipment), packaged in vacuum-sealed aluminum foil antistatic bags, with a desiccant inside to prevent moisture. When using reflow welding process to weld modules, please strictly comply with IPC standard to conduct humidity control on modules. - Page 29 Carrier tape Space between: 20mm UM220-IV L module is rated at MSL level 3, refer to the relevant IPC/JEDEC standards for baking requirements. Please access to the website www.jedec.org to download for details. The shelf life of UM220-IV L module is one year.
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Page 30: Soldering And Disassembly
6 Soldering and Disassembly Disassembly When it is necessary to remove the module, it is recommended to melt the soldering tin of the pins on both sides of the module with an electric soldering iron and remove the module with tweezers. - Page 31 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 www.unicorecomm.com...
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