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 Appendix Page 109 of 123
Confidential
A.2 Pin-out comparison between SARA modules
Table 41 shows a pin-out comparison between the SARA-R4, SARA-R5, SARA-N2, SARA-N3, SARA-G3, SARA-G4, and SARA-U2 modules.
No
SARA-R41x
SARA-R42x
SARA-R5xx
SARA-N2xx
SARA-N3xx
SARA-G3xx
SARA-G4xx
SARA-U2xx
1
GND
GND
GND
GND
GND
GND
GND
GND
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
2
RSVD
USB_3V3
RSVD
RSVD
V_BCKP
V_BCKP
V_BCKP
V_BCKP
Reserved
USB 3V3 supply Input
Reserved
Reserved
RTC supply I/O
RTC supply I/O
RTC supply I/O
RTC supply I/O
3
GND
GND
GND
GND
GND
GND
GND
GND
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
4
V_INT
V_INT
V_INT
V_INT
V_INT
V_INT
V_INT
V_INT
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ
ON when radio is on
TestPoint recommended
Supply output:
1.8 V typ / 2.8 V typ
ON when SARA is on
Voltage value set by VSEL
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ / 3.0 V typ
ON when SARA is on
Voltage value set by VSEL
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
5
GND
GND
GND
GND
GND
GND
GND
GND
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
6
DSR
DSR
DSR
RSVD
DSR
DSR
DSR
DSR
UART DSR output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DSR output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DSR output
V_INT level (1.8 V)
Driver strength: 2 mA
Configurable as RTS for
second auxiliary UART
Reserved
UART DSR output
14
V_INT level (1.8 / 2.8 V)
UART DSR output
V_INT level (1.8 V)
Driver strength: 6 mA
UART DSR output
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
UART DSR output
V_INT level (1.8 V)
Driver strength: 1 mA
7
RI
RI
RI
RSVD
RI
RI
RI
RI
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
Configurable as CTS for
second auxiliary UART
Reserved
UART RI output
V_INT level (1.8 / 2.8 V)
Driver strength: 3 mA
Configurable as GPIO
UART RI output
V_INT level (1.8 V)
Driver strength: 6 mA
UART RI output
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
8
DCD
DCD
DCD
RSVD
DCD
DCD
DCD
DCD
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
Configurable as RXD for
second auxiliary UART
Reserved
UART DCD output
14
V_INT level (1.8 / 2.8 V)
UART DCD output
V_INT level (1.8 V)
Driver strength: 6 mA
UART DCD output
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
14
Not supported by ‘00’ product version