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u-blox ZED-F9T User Manual
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ZED
-F9T-Integr
ation Manual
F
igure 26: Galileo E1 C/B subframe w
ords
3.8.1.5.2 Galileo E5 b1/bQ
F
or Galileo
E5 b1/bQ signals
, each
r
eported
subframe
contains
a
pair of
I/NA
V pages
as
described
in
the Galileo
ICD. Galileo pages can
either be
"Nominal" or
"
Alert"
pages. F
or Nominal
pages the
eight
wor
ds are arr
anged as follo
ws:
UBX-19005590 - R01
3 Receiver functionality
P
age 52 of 80
Advance Inf
ormation
51
53
Table of Contents
Default Chapter
3
Table of Contents
3
1 Integration Manual Structure
6
2 System Description
7
Overview
7
DIfferential Timing
7
Architecture
7
Block Diagram
8
3 Receiver Functionality
9
Receiver Configuration
9
Changing the Receiver Configuration
9
Default GNSS Configuration
9
Default Interface Settings
10
Basic Receiver Configuration
10
DIfferential Timing Mode Configuration
12
Legacy Configuration Interface Compatibility
15
Navigation Configuration
15
Geofencing
20
Introduction
20
Interface
21
Geofence State Evaluation
21
Using the Geofence Pin State Output
21
Interfaces
21
UART Interfaces
23
SPI Interface
23
USB Interface
23
D_SEL Interface
24
RESET_N Interface
24
SAFEBOOT_N Interface
24
TIMEPULSE Interface
25
Display Data Channel (DDC)
25
Antenna Supervisor
25
Extint
28
Communication Ports
28
Multiple GNSS Assistance (MGA)
33
Assistnow Online
33
Host Software
34
Assistnow Online Sequence
34
Flow Control
35
Authorization
35
Service Parameters
35
Multiple Servers
37
Clocks and Time
37
Receiver Local Time
37
Navigation Epochs
37
Itow Timestamps
38
GNSS Times
38
Time Validity
39
UTC Representation
39
Leap Seconds
40
Real Time Clock
40
Date
40
Timing Functionality
41
Time Pulse
41
Timemark
45
Security (Operating, Monitoring and Maintaining)
46
Receiver Status Monitoring
46
Spoofing Detection / Monitoring
48
U-Blox Protocol Feature Descriptions
48
Broadcast Navigation Data
48
Forcing a Receiver Reset
54
4 Design
56
Pin Assignment
56
Power Supply
58
VCC: Main Supply Voltage
58
V_BCKP: Backup Supply Voltage
58
ZED-F9T Power Supply
59
ZED-F9T Minimal Design
59
Antenna
60
Antenna Bias
61
EOS/ESD Precautions
64
ESD Protection Measures
64
EOS Precautions
65
Safety Precautions
65
Electromagnetic Interference on I/O Lines
65
General Notes on Interference Issues
66
In-Band Interference Mitigation
66
Out-Of-Band Interference
67
Layout
67
Placement
67
Package Footprint and Solder Mask
67
Layout Guidance
67
Design Guidance
69
General Considerations
69
Backup Battery
69
RF Front-End Circuit Options
70
Antenna/ RF Input
70
Ground Pads
71
Schematic Design
71
Layout Design-In Guideline
71
5 Product Handling
72
ESD Handling Precautions
72
Soldering
72
Tapes
75
Reels
76
Moisture Sensitivity Levels
76
6 Appendix
77
Glossary
77
7 Related Documents
78
8 Revision History
79
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u-blox ZED-F9T Specifications
General
Brand
u-blox
Model
ZED-F9T
Category
Control Unit
Language
English
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