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 consumption in deep-sleep mode (low power mode and PSM enabled)
- 1.5.1.4 VCC current consumption in low power idle mode (low power mode enabled)
- 1.5.1.5 VCC current consumption in active mode (low power mode and PSM 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 (GPIO)
- 1.12 Reserved pin (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 low drop-out 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 removing VCC supply
- 2.2.1.9 Additional guidelines for VCC supply circuit design
- 2.2.1.10 Guidelines for VCC supply layout design
- 2.2.1.11 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
- 2.6.1 UART interfaces
- 2.6.1.1 Guidelines for UART circuit design
- Providing 1 UART with the full RS-232 functionality (using the complete V.24 link)
- Providing 1 UART with the TXD, RXD, RTS, CTS, DTR and RI lines only
- Providing 1 UART with the TXD, RXD, RTS and CTS lines only
- Providing 2 UARTs with the TXD, RXD, RTS and CTS lines only
- Providing 1 UART with the TXD and RXD lines only
- Providing 2 UARTs with the TXD and RXD lines only
- Additional considerations
- 2.6.1.2 Guidelines for UART layout design
- 2.6.1.1 Guidelines for UART circuit design
- 2.6.2 USB interface
- 2.6.3 SPI interfaces
- 2.6.4 SDIO interface
- 2.6.5 DDC (I2C) interface
- 2.6.1 UART interfaces
- 2.7 Audio
- 2.8 General purpose input / output (GPIO)
- 2.9 Reserved pin (RSVD)
- 2.10 Module placement
- 2.11 Module footprint and paste mask
- 2.12 Schematic for SARA-R5 series module integration
- 2.13 Design-in checklist
- 3 Handling and soldering
- 4 Approvals
- 5 Product testing
- Appendix
- A Migration between SARA modules
- B Glossary
- Related documents
- Revision history
- Contact
SARA-R5 series - System integration manual
UBX-19041356 - R03 Page 3 of 123
Confidential
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 ....................................................................................................................................... 17
1.5.1 Module supply input (VCC) .............................................................................................................. 17
1.5.2 Generic digital interfaces supply output (V_INT) ....................................................................... 20
1.6 System function interfaces .....................................................................................................................21
1.6.1 Module power-on ...............................................................................................................................21
1.6.2 Module power-off .............................................................................................................................. 24
1.6.3 Module reset ...................................................................................................................................... 26
1.7 Antenna interfaces ................................................................................................................................... 27
1.7.1 Cellular antenna RF interface (ANT) ............................................................................................. 27
1.7.2 GNSS antenna RF interface (ANT_GNSS) ................................................................................... 28
1.7.3 Cellular antenna detection interface (ANT_DET) ...................................................................... 29
1.7.4 Cellular and GNSS coexistence ...................................................................................................... 29
1.8 SIM interface .............................................................................................................................................. 31
1.8.1 SIM card interface ............................................................................................................................ 31
1.8.2 SIM card detection interface (GPIO5) ........................................................................................... 31
1.9 Data communication interfaces ............................................................................................................ 31
1.9.1 UART interfaces ................................................................................................................................ 32
1.9.2 USB interface ..................................................................................................................................... 34
1.9.3 SPI interfaces .................................................................................................................................... 35
1.9.4 SDIO interface ................................................................................................................................... 35
1.9.5 DDC (I2C) interface ........................................................................................................................... 35
1.10 Audio ............................................................................................................................................................ 35
1.11 General purpose input / output (GPIO) ................................................................................................. 36
1.12 Reserved pin (RSVD) ................................................................................................................................ 36
2 Design-in ................................................................................................................................................. 37
2.1 Overview ...................................................................................................................................................... 37
2.2 Supply interfaces ...................................................................................................................................... 38
2.2.1 Module supply (VCC) ........................................................................................................................ 38
2.2.2 Generic digital interfaces supply output (V_INT) ....................................................................... 49
2.3 System functions interfaces ..................................................................................................................50
2.3.1 Module power-on (PWR_ON) ..........................................................................................................50
2.3.2 Module reset (RESET_N) ................................................................................................................. 51
2.4 Antenna interfaces ................................................................................................................................... 52