Rainbow Electronics DAB-GPS-C01 - Manual (Page 3)

LEA-5H, LEA-5S, LEA-5A - Data Sheet Preliminary u-blox proprietary
GPS.G5-MS5-07026-P4 Page 3
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1 Functional Description
1.1 Overview
The LEA-5 module series by u-blox sets a new standard for GPS and GALILEO receiver modules. Powered by the
high performance 50-channel u-blox
5 technology, these modules provide excellent performance and flexibility
at an economical price. A 32-channel acquisition engine with over 1 million effective correlators is capable of
massive parallel searches. This enables a Time To First Fix (TTFF) of less than 1 second, while long
correlation/dwell times make possible an acquisition and tracking sensitivity of -160dBm. An available
functionality is SuperSense
® KickStart, a new feature enabling accelerated acquisition of weak signals. Once
acquired, satellites are passed on to a power-optimized dedicated tracking engine. This arrangement allows the
GPS and GALILEO engine to simultaneously track up to 16 satellites while searching for new ones. u-blox
5’s
advanced jamming suppression mechanism and innovative RF architecture provide a high level of immunity to
jamming, ensuring maximum GPS and GALILEO performance.
The LEA-5 series maintains the compact 17.0 x 22.4 mm form factor of the highly successful LEA-4 modules. The
modules have been designed with backwards compatibility in mind, enabling ease of upgrade and reducing
engineering and design costs. A USB port is available for faster data transmission and more flexibility. The
optional FLASH EPROM provides capacity to store user-specific configuration settings and allows for future
updates. These modules do not support the antenna supply and supervisor functionalities, and are ideal solutions
for applications where extra cost savings are needed.
LEA-5 modules are not designed for life saving or supporting devices or for aviation and should not be used in
products that could in any way negatively impact the security or health of the user or third parties or that could
cause damage to goods.
1.2 Highlights and Features
Highlights
•
Time To First Fix (TTFF): < 1 sec
•
Acquisition and tracking sensitivity: -160dBm
•
Receives GPS and GALILEO signals
•
A-GPS: Supports u-blox AssistNow Online and Offline, OMA SUPL compliant
•
High immunity to jamming
•
UART serial port, USB, DDC (I 2 C ® compatible)
Features
Voltage
Ran
g
e (
V
)
Thickn
ess (
m
m
)
50-cha
n
n
e
l
engi
ne
KickStart
SuperSe
n
se
F
W Update / FLASH
UART
USB SPI
DDC
AssistNo
w
Onli
ne
AssistNo
w
Offline
D
e
a
d
R
e
ck
on
ing
Raw D
a
ta
Precisio
n Timi
ng
1PPS
CF
G Pin
Reset In
put
Anten
n
a
Supp
ly
Anten
n
a
Supervis
or
LEA-5H 2.7-3.6 3.0 1 1 1
LEA-5S 2.7-3.6 3.0 1 1 1 1
LEA-5A 2.7-3.6 3.0 1 1 1 1
Table 1: Features of the LEA-5 Series