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Telit Wireless Solutions GE910 - User Manual
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GE910 Hardware
User
Guide
1vv0300962 Rev.12 – 2013
-10-22
2
Table of Contents
Main Page
Default Chapter
5
Table of Contents
5
1 Introduction
7
Scope
7
Audience
7
Contact Information, Support
7
Document Organization
8
Text Conventions
9
Related Documents
9
2 Overview
10
Vv0300962 Rev.12 2013
10
3 GE910 Module Connections
11
Pin-Out
11
Important Pin-Out to Debug in Customer's Application
15
LGA Pads Layout
16
4 Hardware Commands
17
Turning on the GE910
17
Turning off the GE910
21
HW Unconditional Shutdown on GE910
23
5 Power Supply
25
Power Supply Requirements
25
Power Consumption
26
Power Consumption Plots
27
General Design Rules
31
Electrical Design Guidelines
31
Thermal Design Guidelines
34
Power Supply PCB Layout Guidelines
35
6 GSM Radio Section
36
GSM Antenna Requirements
36
GSM Antenna - PCB Line Guidelines
37
PCB Guidelines in Case of FCC Certification
38
Transmission Line Design
38
Transmission Line Measurements
39
GSM Antenna - Installation Guidelines
41
7 Global Navigation Satellite System (GE910-GNSS)
42
Principles of Operation
42
GNSS Signals Pinout
43
Turning ON/OFF the GNSS Module Only in Standalone Mode
43
RF Front End Design
43
RF Signal Requirements
44
GNSS Antenna - PCB Line Guidelines
44
GNSS Antenna Polarization
44
GNSS Antenna Gain
45
Active Versus Passive Antenna
45
RF Trace Losses
46
Implications of the Pre-Select SAW Filter
46
External LNA Gain and Noise Figure
46
Powering the External LNA (Active Antenna)
46
External LNA Enable
47
8 Logic Level Specifications
48
9 USB Port
49
Usb 2.0 Fs
49
10 Serial Ports
50
Modem Serial Port
50
RS232 Level Translation
52
11 Audio Section Overview
54
Digital Voice Interface (DVI)
54
DVI Electrical Connections
54
Analog Front-End
54
MIC Connection
54
LINE-IN Connection
56
EAR Connection
57
Electrical Characteristics
59
12 General Purpose I/O
61
Using a GPIO Pad as INPUT
62
Using a GPIO Pad as OUTPUT
62
Indication of Network Service Availability
63
RTC Bypass out
64
External SIM Holder Implementation
64
ADC Converter
64
Description
64
Using ADC Converter
64
13 Mounting the GE910 on Your Board
65
General
65
Module Finishing & Dimensions
65
Recommended Foot Print for the Application
66
Stencil
67
PCB Pad Design
67
Recommendations for PCB Pad Dimensions
67
Solder Paste
69
GE910 Solder Reflow
69
14 Packing System
71
Packing on Reel
71
Carrier Tape Detail
71
Reel Detail
72
Packaging Detail
73
Packing on Tray
74
Moisture Sensibility
76
15 Conformity Assessment Issues
77
16 Safety Recommandations
82
17 Document History
83
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Telit Wireless Solutions GE910 Specifications
General
Brand
Telit Wireless Solutions
Model
GE910
Category
Control Unit
Language
English
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