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Ublox SARA-R4 Series System Integration Manual
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S
A
R
A
-
R
4
/
N
4
se
r
i
e
s
S
y
s
t
e
m
I
n
t
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a
t
i
o
n
M
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System Integratio
n Ma
nual
Abstract
This
document
d
escribes
the
featu
res
and
the
int
egration
of
the
size
-opt
imized SARA-R4/N4
series
cellular
modules.
These
modules
are
a
comp
lete,
cost
efficient,
perfo
rmance
o
ptimiz
ed,
mu
lti
-
mode
and
multi
band LTE Cat M1 / N
B1 and EGPRS so
lution in the co
mpact
SARA form fa
ctor.
www.u-blox.com
UBX
-16029218 -
R11
SARA-R4/N4
2
Table of Contents
Document Information
2
Contents
3
Overview
7
Architecture
11
Pin-Out
12
Operating Modes
17
Supply Interfaces
21
Module Supply Input (VCC)
21
Generic Digital Interfaces Supply Output (V_INT)
28
System Function Interfaces
30
Module Power-On
30
Module Power-Off
31
Module Reset
33
Antenna Interface
35
Antenna RF Interface (ANT)
35
Antenna Detection Interface (ANT_DET)
36
SIM Interface
36
SIM Detection Interface
37
Data Communication Interfaces
38
UART Interface
38
USB Interface
40
SPI Interface
42
SDIO Interface
42
DDC
42
Audio
42
General Purpose Input/Output
44
Reserved Pins (RSVD)
44
System Features
45
Network Indication
45
Antenna Supervisor
45
Dual Stack Ipv4/Ipv6
45
TCP/IP and UDP/IP
45
Ftp
45
Http
46
Firmware Update over at (FOAT)
46
Firmware Update over the Air (Ufota)
46
Power Saving
47
Normal Operation
50
Table of Contents
3
2 Design-In
51
Overview
51
Supply Interfaces
53
Module Supply (VCC)
53
Generic Digital Interfaces Supply Output (V_INT)
75
System Functions Interfaces
76
Module Power-On (PWR_ON)
76
Module Reset (RESET_N)
78
Antenna Interface
79
Antenna RF Interface (ANT)
79
Antenna Detection Interface (ANT_DET)
88
SIM Interface
92
Guidelines for SIM Circuit Design
92
Guidelines for SIM Layout Design
97
Data Communication Interfaces
98
UART Interface
98
USB Interface
105
SPI Interface
107
SDIO Interface
107
DDC (I C) Interface
107
Audio
111
Guidelines for Audio Circuit Design
111
General Purpose Input/Output
111
Guidelines for GPIO Circuit Design
111
Guidelines for General Purpose Input/Output Layout Design
112
Reserved Pins (RSVD)
113
Module Placement
113
Module Footprint and Paste Mask
114
Thermal Guidelines
115
Schematic for SARA-R4/N4 Series Module Integration
116
Schematic for SARA-R4/N4 Series Modules
116
Design-In Checklist
118
Schematic Checklist
118
Layout Checklist
118
Antenna Checklist
119
3 Handling and Soldering
120
Packaging, Shipping, Storage and Moisture Preconditioning
120
Handling
120
Soldering
122
Soldering Paste
122
Reflow Soldering
122
Optical Inspection
124
Cleaning
124
Repeated Reflow Soldering
124
Wave Soldering
124
Hand Soldering
125
Rework
125
Conformal Coating
125
Casting
125
Grounding Metal Covers
125
Use of Ultrasonic Processes
126
4 Approvals
127
Product Certification Approval Overview
127
US Federal Communications Commission Notice
130
Safety Warnings Review the Structure
130
Declaration of Conformity
130
Modifications
131
Innovation, Science, Economic Development Canada Notice
132
Declaration of Conformity
132
Modifications
133
European Conformance CE Mark
136
Taiwanese National Communication Commission
137
5 Product Testing
138
U-Blox In-Series Production Test
138
Test Parameters for OEM Manufacturers
139
Go/No Go" Tests for Integrated Devices
139
RF Functional Tests
140
Appendix
142
A Migration between SARA Modules
142
Overview
142
Pin-Out Comparison
144
B Glossary
151
Related Documents
154
Revision History
155
Contact
156
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Ublox SARA-R4 Series Specifications
General
Brand
Ublox
Model
SARA-R4 Series
Category
Control Unit
Language
English
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