Ublox SARA-R5 Series - Contents; Table of Contents

SARA-R5 series - System integration manual
UBX-19041356 - R04 Contents Page 3 of 118
C1-Public
Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 System description ............................................................................................................................... 6
1.1 Overview ........................................................................................................................................................ 6
1.2 Architecture ................................................................................................................................................. 8
1.3 Pin-out .......................................................................................................................................................... 11
1.4 Operating modes ....................................................................................................................................... 15
1.5 Supply interfaces ...................................................................................................................................... 16
1.5.1 Module supply input (VCC) ............................................................................................................. 16
1.5.2 Generic digital interfaces supply output (V_INT) ....................................................................... 19
1.6 System function interfaces .................................................................................................................... 20
1.6.1 Module power-on .............................................................................................................................. 20
1.6.2 Module power-off .............................................................................................................................. 23
1.6.3 Module reset ...................................................................................................................................... 25
1.7 Antenna interfaces ................................................................................................................................... 26
1.7.1 Cellular antenna RF interface (ANT) ............................................................................................. 26
1.7.2 GNSS antenna RF interface (ANT_GNSS) ................................................................................... 27
1.7.3 Cellular antenna detection interface (ANT_DET) ...................................................................... 28
1.8 SIM interface .............................................................................................................................................. 28
1.8.1 SIM card interface ............................................................................................................................ 28
1.8.2 SIM card detection interface (GPIO5) ........................................................................................... 28
1.9 Data communication interfaces ............................................................................................................ 29
1.9.1 UART interfaces ................................................................................................................................ 29
1.9.2 USB interface ..................................................................................................................................... 37
1.9.3 SPI interfaces .................................................................................................................................... 37
1.9.4 SDIO interface ................................................................................................................................... 38
1.9.5 DDC (I2C) interface ........................................................................................................................... 38
1.10 Audio ............................................................................................................................................................ 38
1.11 General purpose input / output (GPIO) ................................................................................................. 39
1.12 Reserved pin (RSVD) ................................................................................................................................ 39
2 Design-in ................................................................................................................................................ 40
2.1 Overview ...................................................................................................................................................... 40
2.2 Supply interfaces ...................................................................................................................................... 41
2.2.1 Module supply (VCC) ........................................................................................................................ 41
2.2.2 Generic digital interfaces supply output (V_INT) ....................................................................... 52
2.3 System functions interfaces .................................................................................................................. 53
2.3.1 Module power-on (PWR_ON) .......................................................................................................... 53
2.3.2 Module reset (RESET_N) ................................................................................................................. 54
2.4 Antenna interfaces ................................................................................................................................... 55
2.4.1 General guidelines for antenna interfaces .................................................................................. 55