User Guide

WE866C6 Hardware Design Guide
1VV0301658 Rev. 1 Page 7 of 58 2020-06-16
Voltage Regulator ....................................................................... 35
7.3.1. Recommended Regulators ......................................................... 35
7.3.2. Regulator Operating Conditions .................................................. 36
Antenna Requirements ............................................................... 37
7.4.1. Main Antenna ............................................................................. 37
7.4.2. Antenna Cable ............................................................................ 37
7.4.3. Antenna Design .......................................................................... 38
7.4.4. Antenna Installation Guidelines ................................................... 39
8. MECHANICAL DESIGN ............................................................. 40
Mechanical Dimensions .............................................................. 40
8.1.1. Mechanical Drawing ................................................................... 40
8.1.1.1. Top View..................................................................................... 40
8.1.1.2. Bottom View ............................................................................... 41
8.1.1.3. Side View.................................................................................... 42
9. APPLICATION PCB DESIGN .................................................... 43
Recommended Footprint for the Application ............................... 43
PCB Pad Design ......................................................................... 44
PCB Pad Dimensions ................................................................. 45
Stencil ......................................................................................... 46
Solder Paste ............................................................................... 46
Cleaning ..................................................................................... 46
Solder Reflow ............................................................................. 47
10. PACKING SYSTEM ................................................................... 48
Tray ............................................................................................ 48
Tray Drawing .............................................................................. 49
Moisture Sensitivity ..................................................................... 50
11. CONFORMITY ASSESSMENT ISSUES .................................... 51
Declaration of Conformity ........................................................... 51
FCC/IC Compliance .................................................................... 51
12. SAFETY RECOMMENDATIONS................................................ 55
READ CAREFULLY .................................................................... 55
13. ACRONYMS ............................................................................... 56
14. DOCUMENT HISTORY .............................................................. 57