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SARA-R4/N4 series - System Integration Manual

UBX-16029218 - R11 Page 3 of 157

Contents

Document Information ............................................................................................................................ 2

Contents...................................................................................................................................................... 3

1 System description ............................................................................................................................ 7

1.1 Overview ........................................................................................................................................................................................... 7

1.2 Architecture ................................................................................................................................................................................... 11

1.3 Pin-out ............................................................................................................................................................................................. 12

1.4 Operating modes ....................................................................................................................................................................... 17

1.5 Supply interfaces ........................................................................................................................................................................ 21

1.5.1 Module supply input (VCC) ......................................................................................................................................... 21

1.5.2 Generic digital interfaces supply output (V_INT) .............................................................................................. 28

1.6 System function interfaces ..................................................................................................................................................... 30

1.6.1 Module power-on ............................................................................................................................................................ 30

1.6.2 Module power-off ............................................................................................................................................................ 31

1.6.3 Module reset ...................................................................................................................................................................... 33

1.7 Antenna interface ....................................................................................................................................................................... 35

1.7.1 Antenna RF interface (ANT) ......................................................................................................................................... 35

1.7.2 Antenna detection interface (ANT_DET) ................................................................................................................ 36

1.8 SIM interface................................................................................................................................................................................. 36

1.8.1 SIM interface ...................................................................................................................................................................... 36

1.8.2 SIM detection interface ................................................................................................................................................. 37

1.9 Data communication interfaces ........................................................................................................................................... 38

1.9.1 UART interface ................................................................................................................................................................... 38

1.9.2 USB interface ...................................................................................................................................................................... 40

1.9.3 SPI interface ........................................................................................................................................................................ 42

1.9.4 SDIO interface .................................................................................................................................................................... 42

1.9.5 DDC (I

C) interface........................................................................................................................................................... 42

1.10 Audio ................................................................................................................................................................................................ 42

1.11 General Purpose Input/Output ............................................................................................................................................ 44

1.12 Reserved pins (RSVD) ............................................................................................................................................................... 44

1.13 System features ........................................................................................................................................................................... 45

Brand	Ublox
Model	SARA-R4 Series
Category	Control Unit
Language	English

Ublox SARA-R4 Series System Integration Manual

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