Integration Manual
Table Of Contents
- Document information
- Contents
- 1 System description
- 1.1 Overview
- 1.2 Architecture
- 1.3 Pin-out
- 1.4 Operating modes
- 1.5 Supply interfaces
- 1.5.1 Module supply input (VCC)
- 1.5.1.1 VCC supply requirements
- 1.5.1.2 VCC current consumption in LTE connected mode
- 1.5.1.3 VCC current consumption in 2G connected mode
- 1.5.1.4 VCC current consumption in ultra low power deep sleep mode
- 1.5.1.5 VCC current consumption in low power idle mode
- 1.5.1.6 VCC current consumption in active mode (PSM / low power disabled)
- 1.5.2 Generic digital interfaces supply output (V_INT)
- 1.5.1 Module supply input (VCC)
- 1.6 System function interfaces
- 1.7 Antenna interfaces
- 1.8 SIM interface
- 1.9 Data communication interfaces
- 1.10 Audio
- 1.11 General Purpose Input/Output
- 1.12 GNSS peripheral input output
- 1.13 Reserved pins (RSVD)
- 2 Design-in
- 2.1 Overview
- 2.2 Supply interfaces
- 2.2.1 Module supply (VCC)
- 2.2.1.1 General guidelines for VCC supply circuit selection and design
- 2.2.1.2 Guidelines for VCC supply circuit design using a switching regulator
- 2.2.1.3 Guidelines for VCC supply circuit design using LDO linear regulator
- 2.2.1.4 Guidelines for VCC supply circuit design using a rechargeable battery
- 2.2.1.5 Guidelines for VCC supply circuit design using a primary battery
- 2.2.1.6 Guidelines for external battery charging circuit
- 2.2.1.7 Guidelines for external charging and power path management circuit
- 2.2.1.8 Guidelines for particular VCC supply circuit design for SARA-R4x2
- 2.2.1.9 Guidelines for removing VCC supply
- 2.2.1.10 Additional guidelines for VCC supply circuit design
- 2.2.1.11 Guidelines for VCC supply layout design
- 2.2.1.12 Guidelines for grounding layout design
- 2.2.2 Generic digital interfaces supply output (V_INT)
- 2.2.1 Module supply (VCC)
- 2.3 System functions interfaces
- 2.4 Antenna interfaces
- 2.5 SIM interface
- 2.6 Data communication interfaces
- 2.7 Audio
- 2.8 General Purpose Input/Output
- 2.9 GNSS peripheral input output
- 2.10 Reserved pins (RSVD)
- 2.11 Module placement
- 2.12 Module footprint and paste mask
- 2.13 Thermal guidelines
- 2.14 Schematic for SARA-R4 series module integration
- 2.15 Design-in checklist
- 3 Handling and soldering
- 4 Approvals
- 4.1 Product certification approval overview
- 4.2 US Federal Communications Commission notice
- 4.3 Innovation, Science, Economic Development Canada notice
- 4.4 European Conformance CE mark
- 4.5 National Communication Commission Taiwan
- 4.6 ANATEL Brazil
- 4.7 Australian Conformance
- 4.8 GITEKI Japan
- 4.9 KC South Korea
- 5 Product testing
- Appendix
- A Migration between SARA modules
- B Glossary
- Related documentation
- Revision history
- Contact
SARA-R4 series - System integration manual
UBX-16029218 - R20 Contents Page 4 of 129
C1-Public
Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 4
1 System description ............................................................................................................................... 7
1.1 Overview ........................................................................................................................................................ 7
1.2 Architecture ...............................................................................................................................................11
1.3 Pin-out .........................................................................................................................................................14
1.4 Operating modes .......................................................................................................................................19
1.5 Supply interfaces ......................................................................................................................................22
1.5.1 Module supply input (VCC) .............................................................................................................22
1.5.2 Generic digital interfaces supply output (V_INT) .......................................................................28
1.6 System function interfaces ....................................................................................................................29
1.6.1 Module power-on ..............................................................................................................................29
1.6.2 Module power-off ..............................................................................................................................30
1.6.3 Module reset ......................................................................................................................................32
1.7 Antenna interfaces ...................................................................................................................................33
1.7.1 Cellular antenna RF interface (ANT) .............................................................................................33
1.7.2 GNSS antenna RF interface (ANT_GNSS) ...................................................................................34
1.7.3 Antenna detection interface (ANT_DET).....................................................................................35
1.8 SIM interface ..............................................................................................................................................35
1.8.1 SIM interface .....................................................................................................................................35
1.8.2 SIM detection interface ...................................................................................................................35
1.9 Data communication interfaces ............................................................................................................36
1.9.1 UART interfaces ................................................................................................................................36
1.9.2 USB interface .....................................................................................................................................38
1.9.3 SPI interface ......................................................................................................................................39
1.9.4 SDIO interface ...................................................................................................................................39
1.9.5 DDC (I2C) interface ...........................................................................................................................39
1.10 Audio ............................................................................................................................................................40
1.11 General Purpose Input/Output ...............................................................................................................40
1.12 GNSS peripheral input output ................................................................................................................41
1.13 Reserved pins (RSVD) ..............................................................................................................................41
2 Design-in ................................................................................................................................................ 42
2.1 Overview ......................................................................................................................................................42
2.2 Supply interfaces ......................................................................................................................................43
2.2.1 Module supply (VCC) ........................................................................................................................43
2.2.2 Generic digital interfaces supply output (V_INT) .......................................................................59
2.3 System functions interfaces ..................................................................................................................60
2.3.1 Module PWR_ON / PWR_CTRL input ............................................................................................60
2.3.2 Module RESET_N input ...................................................................................................................61
2.4 Antenna interfaces ...................................................................................................................................62