UM220-IV NL User Manual
I
Contents
1Introduction................................................................................1
1.1 Overview ........................................................................................................1
1.2 Key Features ..................................................................................................2
1.3 Interface.........................................................................................................3
2Product Installation ...................................................................4
2.1 Installation Preparation.................................................................................4
2.2 Hardware Installation ....................................................................................5
3Technical Specifications ...........................................................6
3.1 Electrical Specifications ................................................................................6
3.2 Operation Condition.......................................................................................6
3.3 Dimensions....................................................................................................7
3.4 Pin Definition (Top View)...............................................................................8
3.5 PCB Packaging ..............................................................................................9
4Hardware Design .....................................................................10
4.1 Design in Considerations.............................................................................10
4.2 Avoid Power Leakage ..................................................................................11
4.3 Power Supply Requirements .......................................................................11
4.3.1
Main Supply (VCC)................................................................................................ 11
4.3.2
Backup Supply (V_BCKP) ..................................................................................... 11
4.4 Antenna........................................................................................................12
4.5 Reset ............................................................................................................13
4.6 Serial Port ....................................................................................................13
5Disassembly.............................................................................14
6Package....................................................................................14
6.1 Product Label Description...........................................................................14
6.2 Package Description....................................................................................14
7Clean ........................................................................................16
8Reflow Soldering......................................................................17
