User's Manual

SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R18 Advance Information Contents
Page 6 of 206
2.12 Thermal guidelines ........................................................................................................................ 155
2.13 ESD guidelines .............................................................................................................................. 157
2.13.1 ESD immunity test overview ...................................................................................................... 157
2.13.2 ESD immunity test of u-blox SARA-G3 and SARA-U2 reference designs..................................... 157
2.13.3 ESD application circuits .............................................................................................................. 158
2.14 SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX and SARA-U270 ATEX integration in
explosive atmospheres applications ............................................................................................................. 160
2.14.1 General guidelines ..................................................................................................................... 160
2.14.2 Guidelines for VCC supply circuit design ................................................................................... 161
2.14.3 Guidelines for antenna RF interface design ................................................................................ 162
2.15 Schematic for SARA-G3 and SARA-U2 series module integration .................................................. 164
2.15.1 Schematic for SARA-G300 / SARA-G310 modules integration ................................................... 164
2.15.2 Schematic for SARA-G340 / SARA-G350 modules integration ................................................... 165
2.15.3 Schematic for SARA-U2 series modules integration ................................................................... 166
2.16 Design-in checklist ........................................................................................................................ 167
2.16.1 Schematic checklist ................................................................................................................... 167
2.16.2 Layout checklist ......................................................................................................................... 168
2.16.3 Antenna checklist ...................................................................................................................... 168
3 Handling and soldering ........................................................................................... 169
3.1 Packaging, shipping, storage and moisture preconditioning ............................................................. 169
3.2 Handling ........................................................................................................................................... 169
3.3 Soldering .......................................................................................................................................... 170
3.3.1 Soldering paste.......................................................................................................................... 170
3.3.2 Reflow soldering ....................................................................................................................... 170
3.3.3 Optical inspection ...................................................................................................................... 171
3.3.4 Cleaning .................................................................................................................................... 171
3.3.5 Repeated reflow soldering ......................................................................................................... 172
3.3.6 Wave soldering.......................................................................................................................... 172
3.3.7 Hand soldering .......................................................................................................................... 172
3.3.8 Rework ...................................................................................................................................... 172
3.3.9 Conformal coating .................................................................................................................... 172
3.3.10 Casting ...................................................................................................................................... 172
3.3.11 Grounding metal covers ............................................................................................................ 172
3.3.12 Use of ultrasonic processes ........................................................................................................ 172
4 Approvals .................................................................................................................. 173
4.1 Product certification approval overview ............................................................................................. 173
4.2 US Federal Communications Commission and Industry Canada notice .............................................. 174
4.2.1 Safety warnings review the structure ......................................................................................... 174
4.2.2 Declaration of conformity .......................................................................................................... 174
4.2.3 Modifications ............................................................................................................................ 175
4.3 R&TTED and European conformance CE mark .................................................................................. 176
4.4 Brazilian Anatel certification ............................................................................................................. 177
4.5 Australian Regulatory Compliance Mark ........................................................................................... 178