UM220-IV NV User Manual
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Contents
1 INTRODUCTION ....................................... 1
1.1 OVERVIEW ......................................................................................................................... 1
1.2 KEY FEATURES .................................................................................................................. 2
1.3 INTERFACE ........................................................................................................................ 3
2 PRODUCT INSTALLATION .............................. 4
2.1 INSTALLATION PREPARATION ............................................................................................. 4
2.2 HARDWARE INSTALLATION ................................................................................................. 5
3 TECHNICAL SPECIFICATIONS ........................... 6
3.1 ELECTRICAL SPECIFICATIONS ............................................................................................. 6
3.2 OPERATION CONDITION ..................................................................................................... 6
3.3 DIMENSIONS ..................................................................................................................... 6
3.4 PIN DEFINITION (TOP VIEW) .............................................................................................. 7
3.5 PCB PACKAGING .............................................................................................................. 9
4 HARDWARE DESIGN ................................... 9
4.1 DESIGN IN CONSIDERATIONS .............................................................................................. 9
4.2 AVOID POWER CONNECTION ............................................................................................ 10
4.3 RESET ............................................................................................................................. 10
4.4 ANTENNA ........................................................................................................................ 11
4.5 SERIAL PORT ................................................................................................................... 12
5 DISASSEMBLY ....................................... 12
6 PACKAGE ............................................ 13
6.1 PRODUCT LABEL DESCRIPTION ........................................................................................ 13
6.2 PACKAGE DESCRIPTION ................................................................................................... 13
7 CLEAN .............................................. 14
8 REFLOW SOLDERING .................................. 15