2 ETERNA LTP5901 AND LTP5902 INTEGRATION GUIDE
Table of Contents
About This Guide .................................................................................................................... 3
Audience ....................................................................................................................................................................3
Related Documents....................................................................................................................................................3
Conventions and Terminology....................................................................................................................................3
Revision History.........................................................................................................................................................3
1Design Guidelines...............................................................................................................4
Schematic Design ......................................................................................................................................................4
Manager Variations –IPRA, -IPRB, -IPRC ..............................................................................................................4
PCB Layout ................................................................................................................................................................8
Eterna LTP5901 Recommended Land Pattern (Chip Antenna)...............................................................................9
Eterna LTP5902 Recommended Land Pattern (MMCX) .......................................................................................11
Antenna ESD Considerations....................................................................................................................................13
Supply Design..........................................................................................................................................................13
Voltage Supervision and Reset.................................................................................................................................13
2Manufacturing Guidelines ....................................................................................................14
Reflow......................................................................................................................................................................14
Solder Paste/Cleaning ..............................................................................................................................................14
Packaging ................................................................................................................................................................14
List of Figures
Figure 1 Eterna Example Schematic................................................................................ 4
Figure 2 Eterna Extended Memory Example Schematic (page 1 of 2) ............................................. 6
Figure 3 Eterna Extended Memory Example Schematic (page 2 of 2) ............................................. 7
Figure 4 LTP5901 Land Pattern (Chip Antenna) ..................................................................10
Figure 5 LTP5902 Land Pattern (MMCX) .........................................................................12
List of Tables
Table 1 Programming Header ..................................................................................... 4
Table 2 External Memory Reference Bill of Materials ............................................................. 7
