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u-blox SARA-R4 Series - User Manual
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SARA-R4 series
Size-optimized LTE Cat M1 / NB1 modules
System Integration
Manual
Abstract
This
document
describes
the
features
and
the
system
integration
of
SARA-R4 series ce
llular modules
.
These
modules
are
a
complete
,
cost
efficient
and
performance
optimized
multi-band
LTE
Cat
M1
/
NB1
solution
in
the
compact
SARA form factor
.
www.u-blox.co
m
UBX-
16029218
-
R06
2
Table of Contents
Main Page
Preface
3
Contents
4
Table of Contents
4
1 System Description
7
Overview
7
Architecture
9
Pin-Out
10
Operating Modes
14
Supply Interfaces
16
Module Supply Input (VCC)
16
Generic Digital Interfaces Supply Output (V_INT)
18
System Function Interfaces
19
Module Power-On
19
Module Power-Off
20
Module Reset
21
Antenna Interface
22
Antenna RF Interface (ANT)
22
Antenna Detection Interface (ANT_DET)
23
SIM Interface
23
SIM Detection Interface
23
Data Communication Interfaces
24
UART Interface
24
USB Interface
26
SPI Interface
26
SDIO Interface
27
DDC (I C) Interface
27
Audio
27
General Purpose Input/Output
28
Reserved Pins (RSVD)
28
System Features
29
Network Indication
29
Antenna Supervisor
29
Dual Stack Ipv4/Ipv6
29
TCP/IP and UDP/IP
29
Ftp
29
Http
30
Firmware Update over at (FOAT)
30
Firmware Update over the Air (Ufota)
30
Power Saving
30
2 Design-In
34
Overview
34
Supply Interfaces
35
Module Supply (VCC)
35
Generic Digital Interfaces Supply Output (V_INT)
46
System Functions Interfaces
47
Module Power-On (PWR_ON)
47
Module Reset (RESET_N)
48
Antenna Interface
49
Antenna RF Interface (ANT)
49
Antenna Detection Interface (ANT_DET)
56
SIM Interface
59
Guidelines for SIM Circuit Design
59
Guidelines for SIM Layout Design
63
Data Communication Interfaces
64
UART Interface
64
USB Interface
69
SPI Interface
71
SDIO Interface
71
DDC (I C) Interface
71
Audio
71
General Purpose Input/Output
72
Reserved Pins (RSVD)
72
Module Placement
73
Module Footprint and Paste Mask
74
Thermal Guidelines
75
Schematic for SARA-R4 Series Module Integration
76
Schematic for SARA-R4 Series Modules
76
Design-In Checklist
77
Schematic Checklist
77
Layout Checklist
78
Antenna Checklist
78
3 Handling and Soldering
79
Packaging, Shipping, Storage and Moisture Preconditioning
79
Handling
79
Soldering
80
Soldering Paste
80
Reflow Soldering
80
Optical Inspection
81
Cleaning
81
Repeated Reflow Soldering
82
Wave Soldering
82
Hand Soldering
82
Rework
82
Conformal Coating
82
Casting
82
Grounding Metal Covers
82
Use of Ultrasonic Processes
82
4 Approvals
83
Product Certification Approval Overview
83
US Federal Communications Commission Notice
84
Safety Warnings Review the Structure
84
Declaration of Conformity
84
Modifications
85
Innovation, Science and Economic Development Canada Notice
85
Declaration of Conformity
85
Modifications
86
5 Product Testing
88
U-Blox In-Series Production Test
88
Test Parameters for OEM Manufacturer
89
Go/No Go" Tests for Integrated Devices
89
RF Functional Tests
89
Appendix
91
A Migration between SARA Modules
91
Overview
91
Pin-Out Comparison between SARA-G3, SARA-U2, SARA-R4 and SARA-N2 Modules
93
B Glossary
98
Related Documents
100
Revision History
101
Contact
102
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u-blox SARA-R4 Series Specifications
General
Brand
u-blox
Model
SARA-R4 Series
Category
Control Unit
Language
English
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