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 111 of 123
Confidential
No
SARA-R41x
SARA-R42x
SARA-R5xx
SARA-N2xx
SARA-N3xx
SARA-G3xx
SARA-G4xx
SARA-U2xx
16
GPIO1
GPIO1
GPIO1
GPIO1
GPIO1
GPIO1
GPIO1
GPIO1
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
Trace data output
V_INT level (1.8 V)
Driver strength: 1 mA
TestPoint recommended
GPIO
V_INT level (1.8 / 2.8 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA
GPIO
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA
17
VUSB_DET
USB_5V0
VUSB_DET
RSVD
TXD_AUX
RSVD
TXD_AUX
VUSB_DET
5 V, USB detect input
TestPoint recommended
USB 5V0 supply Input
TestPoint recommended
5 V, USB detect input
TestPoint recommended
Reserved
AUX UART data input
14
V_INT level (1.8 / 2.8 V)
Reserved
AUX UART data input
14
V_INT level (1.8 / 3.0 V)
5 V, USB detect input
TestPoint recommended
18
RESET_N
RSVD
RESET_N
RESET_N
RESET_N
RESET_N
PWR_OFF
RESET_N
Shutdown input
Internal pull-up: ~37 kΩ
L-level: -0.30 ÷ 0.63 V
H-level: 1.17 ÷ 2.10 V
It triggers shutdown of
the whole module when
set low or toggled.
TestPoint recommended
Reserved
Reset input
Internal pull-up: ~56 kΩ
L-level: -0.30 ÷ 0.50 V
H-level: 1.3 ÷ 2.1 V
It triggers module reboot
when toggled, without
PMU shutdown when low.
TestPoint recommended
Reset input
Internal pull-up: ~78 kΩ
L-level: 0 ÷ 0.36*VCC
H-level: 0.52*VCC ÷ VCC
It triggers module reboot
when toggled, without
PMU shutdown when low.
TestPoint recommended
Reset shutdown input
Internal pull-up: ~70 kΩ
L-level: 0.00 ÷ 0.20 V
H-level: 0.90 ÷ 1.10 V
It triggers module reboot
when toggled, with PMU
shutdown when low.
TestPoint recommended
Reset input
Internal diode & pull-up
L-level: -0.10 ÷ 0.15 V
H-level: 1.40 ÷ 4.50 V
It triggers module reboot
when toggled, without
PMU shutdown when low.
TestPoint recommended
Shutdown input
Internal diode
L-level: 0.00 ÷ 0.10 V
H-level: 1.20 ÷ 1.50 V
It triggers shutdown of
the whole module when
set low or toggled.
TestPoint recommended
Reset shutdown input
Internal pull-up: 10 kΩ
L-level: -0.30 ÷ 0.51 V
H-level: 1.32 ÷ 2.01 V
It triggers module reboot
when toggled, with PMU
shutdown when low.
TestPoint recommended
19
GPIO6
GPIO6
GPIO6
RSVD
RXD_AUX
RSVD
RXD_AUX
CODEC_CLK
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
Reserved
AUX UART data output
14
V_INT level (1.8 / 2.8 V)
Reserved
AUX UART data output
14
V_INT level (1.8 / 3.0 V)
13 or 26 MHz output
V_INT level (1.8 V)
Driver strength: 4 mA
20
GND
GND
GND
GND
GND
GND
GND
GND
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
21
GND
GND
GND
GND
VSEL
GND
VSEL
GND
Ground
Ground
Ground
Ground
V_INT voltage selection
VSEL connected to GND:
V_INT = 1.8 V
VSEL unconnected:
V_INT = 2.8 V
Ground
V_INT voltage selection
VSEL connected to GND:
V_INT = 1.8 V
VSEL unconnected:
V_INT = 3.0 V
Ground
22
GND
GND
GND
GND
GND
GND
GND
GND
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
23
GPIO2
GPIO2
GPIO2
RSVD
GPIO2
GPIO2
GPIO2
GPIO2
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
Reserved
GPIO
V_INT level (1.8 / 2.8 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA
GPIO
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA
24
GPIO3
GPIO3
GPIO3
GPIO2
GPIO3
GPIO3
GPIO3
GPIO3
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
15
V_INT level (1.8 V)
Driver strength: 1 mA
GPIO
V_INT level (1.8 / 2.8 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 5 mA
GPIO
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA
25
GPIO4
GPIO4
GPIO4
RSVD
GPIO4
GPIO4
GPIO4
GPIO4
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
GPIO
V_INT level (1.8 V)
Driver strength: 2 mA
Reserved
GPIO
V_INT level (1.8 / 2.8 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA
GPIO
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
GPIO
V_INT level (1.8 V)
Driver strength: 6 mA