LEA-5, NEO-5, TIM-5H - Hardware Integration Manual
GPS.G5-MS5-09027-A2
Released
Hardware description
Page 8 of 68
1
Hardware description
1.1
Overview
The LEA-5, NEO-5 and TIM-5H modules are a family of standalone GPS receivers featuring the high performance
u-blox 5 positioning engine. These compact, easy to integrate modules combine exceptional GPS performance
with highly flexible power, design, and connectivity options. Their compact form factors and SMT pads allow
fully automated assembly with standard pick & place and reflow-soldering equipment for cost-efficient, high-
volume production enabling short time-to-market.
u-blox GPS 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
Architecture
LEA-5, NEO-5 and TIM-5H modules consist of two functional parts - –he RF and the Baseband sections. See
Figure 1 for a block diagram of the modules.
The RF Front-End includes the input matching elements, the integrated Low Noise Amplifier (LNA), the SAW
bandpass filter, the u-blox 5 RF-IC and the Crystal.
The Baseband section contains the u-blox 5 Baseband processor, the RTC crystal and additional elements such as
the optional FLASH Memory for enhanced programmability and flexibility.
RF Front-End
with
Integrated LNA
Baseband Processor
Power
Management
TCXO or
Crystal (optional)
RTC
FLASH EPROM
(optional)
Antenna
Supervision
& Supply
(optional)
Power Control
RF_IN
V_ANT
AADET_N
VCC_RF
VCC
V_BACKUP
G ND
VCC
_OUT
UART
EXTINT
RESET_N
USB V2.0
CFG_xxx
Digital
IF Filter
Backup
RAM
ROM Code
GPS/GALILEO
Engine
ARM7TDMI-S
®
SRAM
TIMEPULSE
SAW
Filter
RTC
VDDIO
DDC
SPI
LEA-5 Block Diagram
