u-blox LARA-R2 series System Integration Manual page 5

1.14.8 SSL/TLS ........................................................................................................................................ 56
1.14.9 Bearer Independent Protocol ....................................................................................................... 57
1.14.10 AssistNow clients and GNSS integration ................................................................................... 57
1.14.11 Hybrid positioning and CellLocate
1.14.12 Wi-Fi integration ...................................................................................................................... 60
1.14.13 Firmware upgrade Over AT (FOAT) .......................................................................................... 60
1.14.14 Firmware update Over The Air (FOTA) ...................................................................................... 60
1.14.15 Smart temperature management ............................................................................................. 61
1.14.16 Power Saving ........................................................................................................................... 63
2 Design-in ..................................................................................................................... 64
2.1 Overview ............................................................................................................................................ 64
2.2 Supply interfaces ................................................................................................................................ 65
2.2.1 Module supply (VCC) .................................................................................................................. 65
2.2.2 RTC supply (V_BCKP) ................................................................................................................... 79
2.2.3 Interface supply (V_INT) ............................................................................................................... 81
2.3 System functions interfaces ................................................................................................................ 82
2.3.1 Module power-on (PWR_ON) ...................................................................................................... 82
2.3.2 Module reset (RESET_N) .............................................................................................................. 83
2.3.3 Module / host configuration selection ......................................................................................... 84
2.4 Antenna interface ............................................................................................................................... 85
2.4.1 Antenna RF interface (ANT1 / ANT2) ........................................................................................... 85
2.4.2 Antenna detection interface (ANT_DET) ...................................................................................... 92
2.5 SIM interface ...................................................................................................................................... 94
2.6 Data communication interfaces ........................................................................................................ 100
2.6.1 UART interface .......................................................................................................................... 100
2.6.2 USB interface............................................................................................................................. 105
2.6.3 HSIC interface ........................................................................................................................... 107
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2.6.4 DDC (I C) interface .................................................................................................................... 109
2.6.5 SDIO interface ........................................................................................................................... 113
2.7 Audio interface ................................................................................................................................. 114
2.7.1 Digital audio interface ............................................................................................................... 114
2.8 General Purpose Input/Output (GPIO) ............................................................................................... 118
2.9 Reserved pins (RSVD) ........................................................................................................................ 119
2.10 Module placement ........................................................................................................................ 119
2.11 Module footprint and paste mask ................................................................................................. 120
2.12 Thermal guidelines ........................................................................................................................ 121
2.13 ESD guidelines .............................................................................................................................. 122
2.13.1 ESD immunity test overview ...................................................................................................... 122
2.14 Schematic for LARA-R2 series module integration ......................................................................... 123
2.15 Design-in checklist ........................................................................................................................ 124
2.15.1 Schematic checklist ................................................................................................................... 124
2.15.2 Layout checklist ......................................................................................................................... 125
2.15.3 Antenna checklist ...................................................................................................................... 125
UBX-16010573 - R02
LARA-R2 series - System Integration Manual
®
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Objective Specification Contents
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