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UART 

UM220-IV  M0  module  supports  data  transfer  and  firmware  upgrade;  the  signal 

input/output level is LVTTL. The default baud rate is 9600bps, and is adjustable, can be 

configured up to 115200bps.  

1PPS 

UM220-IV M0 outputs 1PPS with adjustable pulse width and polarity. 

2

 

Product Installation 

2.1

 

Installation Preparation 

UM220-IV  M0  Modules  are  Electrostatic  Sensitive  Devices  and  require  special 

precautions when handling

 

Follow the steps in section 2.2 in the correct order. 

 

Electrostatic discharge (ESD) may cause damage to the device. All operations 

mentioned in this chapter shall be carried out in an antistatic workbench, using 

both wearing an antistatic wrist strap and a conductive foam pad. If antistatic 

workbench is not available, wear an antistatic wrist strap and connect the other 

end to a metal frame to play a role in anti-static. 

 

Hold the edge of the module, not in direct contact with the components. 

 

Please check carefully whether the module has obviously loose or damaged 

components. If you have questions, please contact us or your local dealer. 

Figure 2-1 shows the typical installation of UM220-IV M0 EVK suites. 

 

Figure 2-1  

 

UM220-IV M0 

Antenna 

Содержание UM220-IV M0

Страница 1: ...WWW UNICORECOMM COM INSTALLATION AND OPERATION USER MANUAL Data subject to change without notice Copyright 2009 2020 Unicore Communications Inc GNSS Positioning Module UM220 IV M0...

Страница 2: ...ces and does not represent a commitment on the part of Unicore Communication Inc No part of this manual may be reproduced or transmitted in any form or by any means electronic or mechanical including...

Страница 3: ...ers Structure of the Document This document includes the following Introduction Briefly explaining the functions performances and installing of the product Installation Contains the list of the produc...

Страница 4: ...ECHNICAL SPECIFICATIONS 5 3 1 ELECTRICAL SPECIFICATIONS 5 3 2 OPERATION CONDITION 5 3 3 DIMENSIONS 5 3 4 PIN DEFINITION TOP VIEW 6 4 HARDWARE DESIGN 7 4 1 DESIGN IN CONSIDERATIONS 7 4 2 AVOID POWER CO...

Страница 5: ...d used SMT pads to support fully automatic integration of standard discharge and reflow soldering especially suitable for low cost and low power consumption fields The radio equipment is in compliance...

Страница 6: ...ot Start 1s Reacquisition 1s AGNSS1 4s Positioning accuracy 2 0m CEP dual system horizontal open sky 3 5m CEP dual system vertical open sky Velocity accuracy RMS 0 1m s dual system Open sky Sensitivit...

Страница 7: ...ctrostatic discharge ESD may cause damage to the device All operations mentioned in this chapter shall be carried out in an antistatic workbench using both wearing an antistatic wrist strap and a cond...

Страница 8: ...e follow the steps below to install Step 1 Make sure to make full anti static measures such as anti static wrist strap grounding the workbench Step 2 Open the UM220 IV M0 evaluation kit Step 3 Select...

Страница 9: ...Vcc 2 8 3 3 3 6 V Peak current Iccp 37 mA Vcc 3 0 V Tracking average current IACQ 19 20 21 mA Vcc 3 0V Low level input voltage Vin_low 0 7 V High level input voltage Vin_high 1 2 V Low level output v...

Страница 10: ...View GND NC VCC_RF NC NC RXD TIMEPULSE GND TXD GND nRESET NC NC RF_IN NC V_BCKP VCC_IO VCC Top View 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 Figure 3 2 UM220 IV M0 No Name I O Electrical level De...

Страница 11: ...CC power off and then on the power off time must be more than 10ms Recommended in serial concatenated RX place 1K resistance TX concatenated 33 or 1 K resistance other need PIO concatenated 4 7K resis...

Страница 12: ...sensitive device dramatic changes in temperature will result in reduced performance keep it as far away from the high power high temperature air and heating devices as possible 4 2 Avoid Power Connec...

Страница 13: ...2 UM220 IV M0 Active Antenna Other than 3v Solution If UM220 IV M0 uses passive antenna the antenna is directly connected to RF_IN pin while VCC_RF can be suspended It should be noted that the use of...

Страница 14: ...UM220 IV M0 User Manual 10 UM220 IV M0 PC RS232 UART1 RS232 1 Figure 4 4 Connect COM to PC...

Страница 15: ...M0 module is packaged in vacuum sealed aluminum foil anti static bag with desiccant and moisture proof agent When using reflow welding process to weld modules please strictly comply with IPC standard...

Страница 16: ...m Carrier tape Space between 20mm Check the humidity indicator card before soldering The 30 indication is blue for normal conditions as shown in figure 6 2 Bake modules firstly before soldering if the...

Страница 17: ...the shielding shell causing mildew and other problems 8 Reflow Soldering In order to avoid device falling off the module should be placed on the top of the main board during welding Reflow soldering t...

Страница 18: ...UM220 IV M0 User Manual 14...

Страница 19: ...www unicorecomm com Unicore Communications Inc www unicorecomm com Phone 86 10 69939800 Fax 86 10 69939888 info unicorecomm com 7 F3 No 7 Fengxian East Road Haidian Beijing P R China 100094...

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