User's Manual

TOBY-R2 series - System Integration Manual
UBX-16010572 - R04 Contents
Page 5 of 147
1.14.7 HTTP ........................................................................................................................................... 56
1.14.8 SSL / TLS ...................................................................................................................................... 57
1.14.9 Bearer Independent Protocol ....................................................................................................... 58
1.14.10 AssistNow clients and GNSS integration ................................................................................... 58
1.14.11 Hybrid positioning and CellLocate
®
.......................................................................................... 59
1.14.12 Wi-Fi integration ...................................................................................................................... 61
1.14.13 Firmware update Over AT (FOAT)............................................................................................. 61
1.14.14 Firmware update Over The Air (FOTA) ...................................................................................... 61
1.14.15 Smart temperature management ............................................................................................. 62
1.14.16 Power saving ........................................................................................................................... 64
2 Design-in ..................................................................................................................... 65
2.1 Overview ............................................................................................................................................ 65
2.2 Supply interfaces ................................................................................................................................ 66
2.2.1 Module supply (VCC) .................................................................................................................. 66
2.2.2 RTC supply output (V_BCKP) ....................................................................................................... 80
2.2.3 Generic digital interfaces supply output (V_INT) ........................................................................... 82
2.3 System functions interfaces ................................................................................................................ 83
2.3.1 Module power-on (PWR_ON) ...................................................................................................... 83
2.3.2 Module reset (RESET_N) .............................................................................................................. 84
2.3.3 Module / host configuration selection ......................................................................................... 85
2.4 Antenna interface ............................................................................................................................... 86
2.4.1 Antenna RF interfaces (ANT1 / ANT2) .......................................................................................... 86
2.4.2 Antenna detection interface (ANT_DET) ...................................................................................... 93
2.5 SIM interface ...................................................................................................................................... 95
2.5.1 Guidelines for SIM circuit design.................................................................................................. 95
2.5.2 Guidelines for SIM layout design ............................................................................................... 100
2.6 Data communication interfaces ........................................................................................................ 101
2.6.1 UART interface .......................................................................................................................... 101
2.6.2 USB interface............................................................................................................................. 106
2.6.3 DDC (I
2
C) interface .................................................................................................................... 108
2.6.4 SDIO interface ........................................................................................................................... 112
2.7 Audio interface ................................................................................................................................. 113
2.7.1 Digital audio interface ............................................................................................................... 113
2.8 General Purpose Input/Output .......................................................................................................... 117
2.9 Reserved pins (RSVD) ........................................................................................................................ 118
2.10 Module placement ........................................................................................................................ 118
2.11 Module footprint and paste mask ................................................................................................. 119
2.12 Thermal guidelines ........................................................................................................................ 120
2.13 ESD guidelines .............................................................................................................................. 121
2.13.1 ESD immunity test overview ...................................................................................................... 121
2.14 Schematic for TOBY-R2 series module integration ......................................................................... 122
2.14.1 Schematic for TOBY-R2 series module “02” product version ..................................................... 122
2.15 Design-in checklist ........................................................................................................................ 123