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 Design-in Page 45 of 123
Confidential
C10 C13
GND
C12C11
SARA-R5 series
52
VCC
53
VCC
51
VCC
Primary
source
R3
U1
ENn
ILIM
ISET
TMR
AGND
VIN
C2C1
12V
NTC
PGND
SW
SYS
BAT
C4
R1
R2
D1
θ
Li-Ion/Li-Pol
battery pack
B1
C5
Li-Ion/Li-Pol battery
charger / regulator with
power path managment
VCC
C3 C6
L1
BST
D2
VLIM
R4
R5
C7 C8
D3
R6
SYSFB
R7
Figure 24: Li-Ion (or Li-Pol) battery charging and power path management application circuit
Reference
Description
Part number - Manufacturer
B1
Li-Ion (or Li-Pol) battery pack with 10 k NTC
Various manufacturer
C1, C5, C6
22 F capacitor ceramic X5R 0603 10% 25 V
GRM188R60J226MEA0 - Murata
C2, C4, C10
100 nF capacitor ceramic X7R 0402 10% 16 V
GCM155R71C104KA55 - Murata
C3
1 F capacitor ceramic X7R 0603 10% 25 V
GCM188R71E105KA64 - Murata
C7, C12
68 pF capacitor ceramic C0G 0402 5% 50 V
GRM1555C1H680JA16 - Murata
C8, C13
15 pF capacitor ceramic C0G 0402 5% 25 V
GJM1555C1H150JB01 - Murata
C11
10 nF capacitor ceramic X7R 0402 10% 16 V
GRT155R71C103KE01 - Murata
D1, D2
Low capacitance ESD protection
CG0402MLE-18G - Bourns
D3
Schottky diode 40 V 3 A
MBRA340T3G - ON Semiconductor
R1, R3, R5, R7
10 k resistor 0402 1% 1/16 W
Generic manufacturer
R2
1.05 k resistor 0402 1% 0.1 W
Generic manufacturer
R4
22 k resistor 0402 1% 1/16 W
Generic manufacturer
R6
26.5 k resistor 0402 1% 1/16 W
Generic manufacturer
L1
2.2 H inductor 7.4 A 13 m 20%
SRN8040-2R2Y - Bourns
U1
Li-Ion/Li-Pol battery DC-DC charger / regulator with
integrated power path management function
MP2617H - Monolithic Power Systems (MPS)
Table 12: Suggested components for battery charging and power path management application circuit
☞ See the section 2.2.1.9, and in particular Figure 26 / Table 14, for the parts recommended to be
provided if the application device integrates an internal antenna.