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Quectel UC20 Hardware Design
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UMTS/HSPA
M
odule
Series
UC20
Hardware
Design
UC20_Hard
ware_De
sign
Confidenti
al / Releas
ed
3
/
82
Chapter 3.16.
2.
4.
Updated p
ower circuit
of Figure 6.
5.
Updated curre
nt consu
mption.
1.4
2014
-
10
-22
Mounta
in ZHOU
1.
Updated internet
protocol
features and
USB
driver.
2.
Updated VB
A
T
input v
oltage range.
3.
Updated
Chapter
3.6.2,
and
add
ed
VBA
T
drop figure.
4.
Updated
antenna
requir
ement
in
Chapter
5.3.1.
5.
Updated curre
nt consu
mption.
6.
Updated
recommended
footprint
in
Chapter
7.2.
7.
Deleted descr
iption of U
AR
T
autobauding.
8.
Deleted Ch
apter of U
SIM connect
or
.
9.
Changed
TXB0
108 chip t
o
TXS0108 ch
ip.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
3
5
Table of Contents
About the Document
3
Table of Contents
5
Contents
5
Introduction
10
Safety Information
11
Product Concept
12
General Description
12
Key Features
13
Functional Diagram
15
Evaluation Board
16
Application Interface
17
General Description
17
Pin Assignment
18
Pin Description
19
Operating Modes
25
Power Saving
26
Sleep Mode
26
UART Application
26
USB Application with Suspend Function
27
USB Application Without Suspend Function
27
Airplane Mode
28
Power Supply
29
Power Supply Pins
29
Decrease Voltage Drop
29
Reference Design for Power Supply
30
Monitor the Power Supply
31
Turn on and off Scenarios
31
Turn on Module Using the PWRKEY
31
Turn off Module
33
Turn off Module Using the PWRKEY Pin
33
Turn off Module Using at Command
34
Automatic Shutdown
34
Reset the Module
35
RTC Backup
37
UART Interface
38
USIM Card Interface
41
USB Interface
44
PCM and I2C Interface
45
ADC Function
48
Uc20_Hardware_Design
48
Confidential / Released
48
Network Status Indication
49
Operating Status Indication
50
Status
50
Sleep_Ind
50
Behavior of the RI
52
GNSS Receiver
53
General Description
53
GNSS Performance
54
Layout Guideline
55
Antenna Interface
56
GSM/UMTS Antenna Interface
56
Pin Definition
56
Operating Frequency
56
Reference Design
57
GNSS Antenna Interface
58
Reference Design for Passive Antenna
58
Reference Design for Active Antenna
59
Antenna Installation
59
Antenna Requirement
59
Install the Antenna with RF Connector
60
Electrical, Reliability and Radio Characteristics
62
Absolute Maximum Ratings
62
Power Supply Ratings
62
Operating Temperature
63
Current Consumption
63
RF Output Power
67
RF Receiving Sensitivity
68
Electrostatic Discharge
68
Mechanical Dimensions
69
Mechanical Dimensions of the Module
69
Footprint of Recommendation
72
Top View of the Module
73
Bottom View of the Module
73
Storage and Manufacturing
74
Storage
74
Manufacturing and Welding
74
Packaging
75
Appendix A Reference
77
Appendix B GPRS Coding Scheme
81
Appendix C GPRS Multi-Slot Class
82
Appendix D EDGE Modulation and Coding Scheme
83
Uc20_Hardware_Design
83
Confidential / Released
83
Other manuals for Quectel UC20
Manual
83 pages
Application Note
30 pages
User Guide
33 pages
4
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Quectel UC20 Specifications
General
Brand
Quectel
Model
UC20
Category
Control Unit
Language
English
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