u-blox NEO-M9N - Page 5

NEO-M9N-Integration manual
4.5.2 Antenna design with external LNA or active antenna......................................................... 73
4.5.3 Out-of-band blocking immunity................................................................................................75
4.6 EOS/ESD precautions.......................................................................................................................... 75
4.6.1 ESD protection measures.......................................................................................................... 76
4.6.2 EOS precautions...........................................................................................................................76
4.6.3 Safety precautions...................................................................................................................... 77
4.7 Electromagnetic interference on I/O lines.......................................................................................77
4.7.1 General notes on interference issues......................................................................................77
4.7.2 In-band interference mitigation................................................................................................78
4.7.3 Out-of-band interference........................................................................................................... 78
4.8 Layout......................................................................................................................................................79
4.8.1 Placement...................................................................................................................................... 79
4.8.2 Thermal management................................................................................................................ 79
4.8.3 Package footprint, copper and paste mask........................................................................... 79
4.8.4 Layout guidance........................................................................................................................... 81
4.9 Design guidance....................................................................................................................................82
4.9.1 General considerations............................................................................................................... 82
4.9.2 Backup battery............................................................................................................................. 83
4.9.3 RF front-end circuit options...................................................................................................... 83
4.9.4 Antenna/RF input........................................................................................................................ 84
4.9.5 Ground pads.................................................................................................................................. 84
4.9.6 Schematic design........................................................................................................................ 84
4.9.7 Layout design-in guideline......................................................................................................... 84
5 Product handling................................................................................................................. 85
5.1 ESD handling precautions.................................................................................................................. 85
5.2 Soldering.................................................................................................................................................85
5.3 Packaging............................................................................................................................................... 88
5.4 Tapes....................................................................................................................................................... 88
5.5 Reels........................................................................................................................................................ 89
5.6 Moisture sensitivity levels.................................................................................................................. 89
Appendix.................................................................................................................................... 90
A Migration....................................................................................................................................................90
B Glossary......................................................................................................................................................92
Related documents................................................................................................................ 93
Revision history.......................................................................................................................94
UBX-19014286 - R07
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