u-blox LEA-6 Data Sheet

LEA-6
u-blox 6 GPS Modules
Data Sheet
Abstract
Technical data sheet describing the cost effective, high-performance
u-blox 6 based LEA-6 series of GPS modules, that bring the high
performance of the u-blox 6 position engine to the industry
standard LEA form factor.
These versatile, stand-alone receivers combine an extensive array of
features with flexible connectivity options. Their ease of integration
results in fast times-to-market for a wide range of automotive,
consumer and industrial applications with strict size and cost
requirements.
www.u-blox.com
UBX-14044797 - R13
17.0 x 22.4 x 2.4mm
LEA-6 - Data Sheet
Document Information
Title
LEA-6
Subtitle
u-blox 6 GPS Modules
Document type
Data Sheet
Document number
UBX-14044797
Revision, date
R13
Document status
Production Information
17-Feb-2017
Document status information
Objective Specification
Document contains target values. Revised and supplementary data will be published later.
Advance Information
Document contains data based on early testing. Revised and supplementary data will be published later.
Early Production Information
Document contains data from product verification. Revised and supplementary data may be published later.
Production Information
Document contains the final product specification.
This document applies to the following products:
Product name
Type number
ROM/FLASH version
PCN reference
LEA-6H
LEA-6S
LEA-6H-0-002
LEA-6S-0-001
FW7.03
ROM7.03
UBX-TN-11054
UBX-TN-11059
LEA-6A
LEA-6A-0-001
ROM7.03
UBX-TN-11059
LEA-6R
LEA-6R
LEA-6R-0-001
LEA-6R-0-002
FW DR 2.0
FW DR 2.02
N/A
UBX-13001339
LEA-6T
LEA-6T-0-001
LEA-6T-1-001
LEA-6T-2-000
LEA-6T-2-001
ROM7.03
FW7.03
FW6.02
FW6.04
UBX-TN-11059
u-blox reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein may in
whole or in part be subject to intellectual property rights. Reproduction, use, modification or disclosure to third parties of this document or
any part thereof without the express permission of u-blox is strictly prohibited.
The information contained herein is provided “as is” and u-blox assumes no liability for the use of the information. No warranty, either
express or implied, is given, including but not limited, with respect to the accuracy, correctness, reliability and fitness for a particular purpose
of the information. This document may be revised by u-blox at any time. For most recent documents, please visit www.u-blox.com.
Copyright © 2017, u-blox AG.
u-blox® is a registered trademark of u-blox Holding AG in the EU and other countries.
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LEA-6 - Data Sheet
Contents
Contents.............................................................................................................................. 3
1
Functional description.................................................................................................. 5
1.1
Overview .............................................................................................................................................. 5
1.2
1.3
Product features ................................................................................................................................... 5
GPS performance.................................................................................................................................. 6
1.4
Block diagram....................................................................................................................................... 7
1.5
1.6
Assisted GPS (A-GPS) ............................................................................................................................ 7
AssistNow Autonomous ....................................................................................................................... 7
1.7
Oscillators ............................................................................................................................................. 7
1.8
1.9
GALILEO ............................................................................................................................................... 7
GLONASS ............................................................................................................................................. 8
1.10
Protocols and interfaces .................................................................................................................... 8
1.10.1
1.10.2
UART............................................................................................................................................. 8
USB ............................................................................................................................................... 8
1.10.3
SPI (LEA-6R) ................................................................................................................................... 9
1.10.4 Display Data Channel (DDC) .......................................................................................................... 9
1.11
Antenna ............................................................................................................................................ 9
1.11.1
Power Management ...................................................................................................................... 9
1.11.2
1.11.3
Maximum Performance Mode ....................................................................................................... 9
Eco Mode .................................................................................................................................... 10
1.11.4
Power Save Mode ....................................................................................................................... 10
1.12
Configuration ................................................................................................................................. 10
1.12.1 Boot-time configuration (LEA-6A, LEA-6S) ................................................................................... 10
1.12.2
1.13
1.14
Configuration (LEA-6H, LEA-6R, LEA-6T) ..................................................................................... 10
Design-in ........................................................................................................................................ 10
Dead Reckoning (LEA-6R) ................................................................................................................ 11
1.14.1
Supported peripheral components (LEA-6R) ................................................................................ 11
1.15
Precision Timing & Raw Data (LEA-6T) ............................................................................................. 12
1.15.1 Time mode .................................................................................................................................. 12
2
1.15.2
Timepulse and frequency reference ............................................................................................. 12
1.15.3
1.15.4
Time mark ................................................................................................................................... 12
Raw data ..................................................................................................................................... 12
Pin Definition .............................................................................................................. 13
2.1
3
Pin assignment ................................................................................................................................... 13
Electrical specifications .............................................................................................. 15
3.1
Absolute maximum ratings ................................................................................................................. 15
3.2
3.3
Operating conditions .......................................................................................................................... 16
Indicative power requirements ............................................................................................................ 17
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LEA-6 - Data Sheet
4
Mechanical specifications .......................................................................................... 18
5
Qualification and certification ................................................................................... 19
5.1
5.2
6
Reliability tests .................................................................................................................................... 19
Approvals ........................................................................................................................................... 19
Product handling & soldering .................................................................................... 20
6.1
Packaging ........................................................................................................................................... 20
6.1.1
Reels ........................................................................................................................................... 20
6.1.2
Tapes .......................................................................................................................................... 21
6.2
6.3
Moisture Sensitivity Levels ................................................................................................................... 22
Reflow soldering ................................................................................................................................. 22
6.4
ESD handling precautions ................................................................................................................... 22
7
Default settings .......................................................................................................... 23
8
Labeling and ordering information........................................................................... 24
8.1
Product labeling.................................................................................................................................. 24
8.2
8.3
Explanation of codes........................................................................................................................... 24
Ordering information .......................................................................................................................... 24
Related documents........................................................................................................... 25
Revision history ................................................................................................................ 25
Contact .............................................................................................................................. 26
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LEA-6 - Data Sheet
1 Functional description
1.1 Overview
The LEA-6 module series is a family of stand-alone GPS receivers featuring the high performance u-blox 6
positioning engine. These versatile receivers feature an extensive and flexible range of functionality, connectivity
and cost savings options. LEA-6 modules maintain the industry standard 17.0 x 22.4mm form factor of the
LEA-5 series and have been designed to allow simple migration. Their ease of integration results in reduced costs
and short time to market for a wide range of automotive, consumer and industrial applications.
The 50-channel u-blox 6 positioning engine boasts a Time-To-First-Fix (TTFF) of less than 1 second. The dedicated
acquisition engine, with over 2 million correlators, is capable of massive parallel time/frequency space searches,
enabling it to find satellites instantly. Innovative design and technology suppresses interference sources and
mitigates multipath effects, giving LEA-6 GPS receivers excellent navigation performance even in the most
challenging environments.
LEA-6 allows simple integration with u-blox wireless modules.
1.2 Product features
Table 1: Features of the LEA-6 Series
All LEA-6 modules are based on GPS chips qualified according to AEC-Q100. See Chapter 5.1 for further
information.
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LEA-6 - Data Sheet
1.3 GPS performance
Parameter
Specification
Receiver type
50 Channels
GPS L1 frequency, C/A Code
GALILEO Open Service capable1
GLONASS FDMA1
SBAS: WAAS, EGNOS, MSAS
Time-To-First-Fix2
Cold Start (without aiding)
Warm Start (without aiding)
Hot Start (without aiding)
Aided Starts3
Sensitivity4
Tracking & Navigation
Reacquisition
Cold Start (without aiding)
Max. Navigation update rate
Horizontal position accuracy5
Without aiding
SBAS
Configurable Timepulse frequency range
Accuracy for Timepulse signal6
RMS
99%
Compensated7
Velocity accuracy6
Heading accuracy6
Operational Limits
LEA-6H/LEA-6S/
LEA-6T-0/LEA-6T-1
LEA-6A/ LEA-6R
LEA-6T-2
26 s
26 s
1s
1s
27 s
27 s
1s
3s
28 s
28 s
1s
1s
LEA-6H/LEA-6S/
LEA-6T-0/LEA-6T-1
LEA-6A/ LEA-6R
LEA-6T-2
-162 dBm
-160 dBm
-148 dBm
-162 dBm
-160 dBm
-147 dBm
-160 dBm
-160 dBm
-147dBm
LEA-6A/ LEA-6S/ LEA-6T-0
LEA-6H/LEA-6T1/LEA-6T-2
LEA-6R
5 Hz
2 Hz
1 Hz
2.5 m
2.0 m
LEA-6H/ LEA-6S/ LEA-6A/
LEA-6R
LEA-6T
0.25 Hz to 1 kHz
0.25 Hz to 10 MHz
30 ns
<60 ns
15 ns
0.1 m/s
0.5 degrees
4g
Dynamics
Altitude8
Velocity8
50,000 m
500 m/s
Table 2: LEA-6 GPS performance
1
2
3
4
5
6
7
8
Via FW update on LEA-6H
All satellites at -130 dBm
Dependant on aiding data connection speed and latency
Demonstrated with a good active antenna
CEP, 50%, 24 hours static, -130 dBm, SEP: < 3.5 m
Under good GPS signal conditions
Quantization error information can be used with LEA-6T to compensate the granularity related error of the timepulse signal
Assuming Airborne < 4g platform
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LEA-6 - Data Sheet
1.4 Block diagram
Figure 1 Block diagram (For available options refer to the product features table in section 1.2.)
1.5 Assisted GPS (A-GPS)
Supply of aiding information like ephemeris, almanac, approximate previous position and time, satellite status
and an optional time synchronization signal will reduce time to first fix significantly and improve the acquisition
9
sensitivity. All LEA-6 modules support the u-blox AssistNow Online and AssistNow Offline A-GPS services and are
OMA SUPL compliant.
1.6 AssistNow Autonomous
AssistNow Autonomous provides functionality similar to Assisted-GPS without the need for a host or external
network connection. Based on previously broadcast satellite ephemeris data downloaded to and stored by the
GPS receiver, AssistNow Autonomous automatically generates accurate satellite orbital data (“AssistNow
Autonomous data”) that is usable for future GPS position fixes. AssistNow Autonomous data is reliable for up to
3 days after initial capture.
u-blox’ AssistNow Autonomous benefits are:

Faster position fix

No connectivity required

Complementary with AssistNow Online and Offline services

No integration effort, calculations are done in the background
For more details see the u-blox 6 Receiver Description including Protocol Specification [2].
1.7 Oscillators
LEA-6 GPS modules are available in Crystal and TCXO versions. The TCXO allows accelerated weak signal
acquisition, enabling faster start and reacquisition times.
1.8 GALILEO
When GALILEO-L1 signals become available, LEA-6H receivers will be capable of receiving and processing them
via a firmware upgrade. The ability to receive and track GALILEO satellite signals will result in higher coverage,
improved reliability and better accuracy.
9
AssistNow Offline requires external memory on the host for LEA-6S, LEA-6A, and LEA-6T-0
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LEA-6 - Data Sheet
1.9 GLONASS
The Russian GLONASS satellite system is an alternative system to the US-based Global Positioning System (GPS).
LEA-6H modules are GLONASS ready and are capable of receiving and processing GLONASS signals via a
firmware upgrade. For more information about GLONASS and implementation see the u-blox GPS Compendium
[4] and the GLONASS & GPS HW Designs Application Note [5].
1.10 Protocols and interfaces
Protocol
Type
NMEA
Input/output, ASCII, 0183, 2.3 (compatible to 3.0)
UBX
Input/output, binary, u-blox proprietary
RTCM
Input, 2.3
Table 3: Available protocols
All listed protocols are available on UART, USB and DDC. For specification of the various protocols see the
u-blox 6 Receiver Description including Protocol Specification [2].
LEA-6 modules support a number of peripheral interfaces for serial communication. The embedded firmware
uses these interfaces according to their respective protocol specifications. For specific applications, the firmware
also supports the connection of external memories.
1.10.1 UART
LEA-6 modules include one configurable UART interface for serial communication (for information about
configuration see section 1.12).
1.10.2 USB
LEA-6 modules provide a USB version 2.0 FS (Full Speed, 12Mbit/s) interface as an alternative to the UART. The
pull-up resistor on USB_DP is integrated to signal a full-speed device to the host. The VDDUSB pin supplies the
USB interface.
®
u-blox provides a Microsoft certified USB driver for Windows XP, Windows Vista and Windows 7 operating
systems.
Operating System
Support level
Windows XP
Certified
Windows Vista
Windows 7
Certified
Certified
Table 4: Operating systems supported by USB driver
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LEA-6 - Data Sheet
1.10.3 SPI (LEA-6R)
LEA-6R includes a Serial Peripheral Interface (SPI) for connecting external sensors. The interface can be operated
in SPI master mode only. Two chip select signals are available to select external slaves.
LEA-6R default SPI clock is 870 kHz. As LEA-4R default value is 460 kHz, migrating from LEA-4R to LEA-6R will
require a bandwidth verification of the SPI circuits.
1.10.4 Display Data Channel (DDC)
2
The I C compatible DDC interface can be used either to access external devices with a serial interface or to
interface with a host CPU. It is capable of master and slave operation. DDC is not available with LEA-6R. The
2
2
DDC interface is I C Standard Mode compliant. For timing parameters consult the I C standard.
The DDC Interface supports serial communication with u-blox wireless modules. See the specification of
the applicable wireless module to confirm compatibility.
The maximum bandwidth is 100kbit/s.
1.10.4.1 External serial EEPROM
LEA-6A and LEA-6S modules allow an optional external serial EEPROM to be connected to the DDC interface.
This can be used to store Configurations permanently.
For more information see the LEA-6/NEO-6/MAX-6 Hardware Integration Manual [1].
1.11 Antenna
LEA-6 modules are designed for use with passive and active antennas.
An antenna supervisor is available with all LEA-6 Modules. In the default operation mode the antenna supervisor
is activated and enables the receiver to detect short circuits at the active antenna by checking the bias voltage
level and can shut down the voltage bias immediately. A series resistor is needed in front of the V_ANT input.
UBX and NMEA messages are provided to report the condition of the antenna supply. Open circuit detection can
also be supported with an additional external circuit. For details, please refer to the LEA-6/NEO-6/MAX-6
Hardware Integration Manual [1].
Parameter
Specification
Antenna Type
Active Antenna Recommendations
Minimum gain
Maximum gain
Maximum noise figure
Passive and active antenna
15 dB (to compensate signal loss in RF cable)
50 dB
1.5 dB
Table 5: Antenna specifications
1.11.1 Power Management
u-blox receivers support different power modes. These modes represent strategies of how to control the
acquisition and tracking engines in order to achieve either the best possible performance or good performance
with reduced power consumption.
For more information about power management strategies, see the u-blox 6 Receiver Description
including Protocol Specification [2].
1.11.2 Maximum Performance Mode
During a Cold start, a receiver in Maximum Performance Mode continuously deploys the acquisition engine to
search for all satellites. Once the receiver has a position fix (or if pre-positioning information is available), the
acquisition engine continues to be used to search for all visible satellites that are not being tracked.
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LEA-6 - Data Sheet
1.11.3 Eco Mode
During a Cold start, a receiver in Eco Mode works exactly as in Maximum Performance Mode. Once a position
can be calculated and a sufficient number of satellites are being tracked, the acquisition engine is powered off
resulting in significant power savings. The tracking engine continuously tracks acquired satellites and acquires
other available or emerging satellites.
Note that even if the acquisition engine is powered off, satellites continue to be acquired.
1.11.4 Power Save Mode
Power Save Mode (PSM) allows a reduction in system power consumption by selectively switching parts of the
receiver on and off.
Power Save mode is not available with LEA-6R.
1.12 Configuration
1.12.1 Boot-time configuration (LEA-6A, LEA-6S)
LEA-6A and LEA-6S modules provide CFG_COM1 for boot-time configuration. This pin becomes effective
immediately after start-up. Once the module has started, the configuration settings can be modified with UBX
configuration messages. The modified settings remain effective until power-down or reset. If these settings have
been stored in battery-backup RAM, then the modified configuration will be retained, as long as the backup
battery supply is not interrupted.
UART settings can be can be configured as seen in Table 6 with the CFG_COM1 pin. Default settings in bold.
CFG_COM1
Protocol
Messages
UARTBaud rate
1
0
NMEA
NMEA
GSV, RMC, GSA, GGA, GLL, VTG, TXT
GSV10, RMC, GSA, GGA, VTG, TXT
9600
4800
Table 6: Supported CFG_COM1 settings (LEA-6A, LEA-6S)
1.12.2 Configuration (LEA-6H, LEA-6R, LEA-6T)
With the LEA-6H, LEA-6R and LEA-6T, configuration settings modified with UBX configuration messages can be
saved permanently. In this case the modified settings remain effective even after power-down and don’t require
backup battery supply.
LEA-6T-0 includes a serial Flash memory for storage of configuration. Saving full configurations might take
several seconds to store on LEA-6T-0. Do not power down the Module before receiving the acknowledge.
For more information, see the u-blox 6 Receiver Description including Protocol Specification [2].
1.13 Design-in
In order to obtain the necessary information to conduct a proper design-in, u-blox strongly recommends
consulting the LEA-6/NEO-6/MAX-6 Hardware Integration Manual [1].
10
Every 5th fix.
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LEA-6 - Data Sheet
1.14 Dead Reckoning (LEA-6R)
LEA-6R receivers supplement the GPS information with an incoming signal from a gyroscope (turn rate sensor)
and odometer pulses to do dead reckoning navigation through periods of poor GPS reception. Depending on
the quality of the available GPS signals, the LEA-6R uses an algorithm specially developed by u-blox in order to
compute the next positions accurately by using an automatically weighted average of the GPS and sensor inputs.
This provides precise navigation in locations with no or impaired GPS reception, for example in tunnels, indoor
car parks and deep urban canyons.
The LEA-6R is a low power dead reckoning GPS receiver module. The LEA-6R is the ideal solution for applications
requiring accurate, reliable positioning, all of the time.
The LEA-6R includes a front-end LNA.
1.14.1 Supported peripheral components (LEA-6R)
The LEA-6R supports the following peripheral components:
A/D converters with SPI interface
Linear Technology, LTC1860, 12-bit A/D converter
digital temperature sensors with SPI interface
National Semiconductors,
LM70, precision: 10 bits plus sign
Table 7: Supported peripheral components
Gyroscopes should at least meet the requirements listed below:
Parameter
Supply Voltage
Specification
5.0 V ± 0.25 V
Zero Point
2.5 V ± 0.4 V
Sensitivity
25 mV/°/s ± 5 mV/°/s
Dynamic Range
Linearity
± 60°/s to ± 125°/s
± 0.5% (Full scale)
Recommended operating temperature range
–40°C to +85°C
Table 8: Required Specifications for Gyroscopes
Gyroscopes with a sensitivity of lower than 20 mV/°/s may work but the performance will be degraded. For this
reason u-blox does not recommend using gyroscopes with a lower sensitivity.
For implementation details as well as a list of supported gyroscopes that u-blox is currently aware of, or for more
information about Dead Reckoning and other special features of the LEA-6R refer to the LEA-6/NEO-6/MAX-6
Hardware Integration Manual [1] and the u-blox 6 Receiver Description including Protocol Specification [2].
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LEA-6 - Data Sheet
1.15 Precision Timing & Raw Data (LEA-6T)
Timing and Raw data features are available in three Module versions, the LEA-6T-0, LEA-6T-1 and LEA-6T-2. All
are pin-compatible Modules. The LEA-6T-1 and LEA-6T-2 include internal Flash memories for firmware updates.
1.15.1 Time mode
LEA-6T provides a special Time Mode to provide higher timing accuracy. The LEA-6T is designed for use with
stationary antenna setups. The Time Mode features three different settings described in Table 9: Disabled,
Survey-In and Fixed Mode. For optimal performance entering the position of the antenna (when known) is
recommended as potential source of errors will be reduced.
Time Mode Settings
Description
Disabled
Standard PVT operation
Survey-In
The GPS receiver computes the average position over an extended time period until a predefined
maximum standard deviation has been reached. Afterwards the receiver will be automatically set to
Fixed Mode and the timing features will be activated.
Fixed Mode
In this mode, a fixed 3D position and known standard deviation is assumed and the timing features are
activated. Fixed Mode can either be activated directly by feeding pre-defined position coordinates (ECEF
- Earth Center Earth Fixed format) or by performing a Survey-In.
In Fixed mode, the timing errors in the TIMEPULSE signal which otherwise result from positioning errors
are eliminated. Single-satellite operation is supported. For details, please refer to the u-blox 6 Receiver
Description including Protocol Specification [2].
Table 9: Time mode settings
1.15.2 Timepulse and frequency reference
LEA-6T-0 and LEA-6T-1 not only feature the new u-blox 6 engine with its extra acquisition sensitivity, they also
comes with a 2nd timepulse output, which can be configured from 0.25 Hz up to 10 MHz. One timepulse can
be used for time synchronization (i.e. 1 pulse per second), while the 2nd timepulse can be used with LEA-6T as a
reference frequency in the MHz range. A timepulse in the MHz range provides excellent long-term frequency
accuracy and stability. This brings cost savings for LEA-6T customers since it is no longer necessary to generate
an additional reference frequency with their circuitry. (LEA-6T-2 supports only a single timepulse output.)
1.15.3 Time mark
LEA-6T can be used for precise time measurements with sub-microsecond resolution using the external interrupt
(EXTINT0). Rising and falling edges of these signals are time-stamped to the GPS or UTC time and counted. The
Time Mark functionality can be enabled with the UBX-CFG-TM2 message
For details, please refer to the u-blox 6 Receiver Description including Protocol Specification [2].
1.15.4 Raw data
Raw data output is supported at an update rate of 5 Hz on the LEA-6T-0 and 2 Hz on the LEA-6T-1 and LEA-6T2. The UBX-RXM-RAW message includes carrier phase with half-cycle ambiguity resolved, code phase and
Doppler measurements, which can be used in external applications that offer precision positioning, real-time
kinematics (RTK) and attitude sensing.
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LEA-6 - Data Sheet
2 Pin Definition
2.1 Pin assignment
28
27
26
25
24
23
22
21
20
19
18
17
16
15
10
11
12
13
14
LEA-6
Top View
1
2
3
4
5
6
7
8
9
Figure 2 LEA-6 Pin Assignement
Pin Nr.
Module
Name
I/O
Description
LEA-6A, LEA-6S, LEA-6H, LEA-6T
SDA2
I/O
DDC Data
LEA-6R
SPI_MOSI
O
SPI MOSI
2
LEA-6A, LEA-6S, LEA-6H, LEA-6T
LEA-6R
SCL2
SPI_MISO
I/O
I
DDC Clock
SPI MISO
3
4
All
All
TxD1
RxD1
O
I
Serial Port 1
Serial Port 1
5
6
All
All
NC
VCC
I
Not Connected
Supply voltage
7
All
GND
I
Ground (digital)
8
All
LEA-6A, LEA-6S
VCC_OUT
CFG_COM1
O
I
Output voltage
Configuration Pin
LEA-6H, LEA-6T-2
LEA-6R
NC
SPI_SCS2_N
O
Not Connected
SPI Chip Select 2
10
LEA-6T-0, LEA-6T-1
All
TIMEPULSE2
RESET_N
O
I
2nd Timepulse (1PPS)
External Reset
11
All
V_BCKP
I
Backup voltage supply
12
All
Reserved
I
Do not drive low
13
All
GND
I
Ground
14
15
All
All
GND
GND
I
I
Ground
Ground
16
17
All
All
RF_IN
GND
I
I
GPS signal input
Ground
18
19
All
All
VCC_RF
V_ANT
O
I
Output Voltage RF section
Antenna Bias voltage
20
All
AADET_N
I
Active Antenna Detect
1
9
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LEA-6 - Data Sheet
Pin Nr.
Module
Name
LEA-6A, LEA-6S, LEA-6H, LEA-6T
Reserved
LEA-6R
FWD
I
Direction indication (1 = forward)
22
LEA-6A, LEA-6S, LEA-6H, LEA-6T
LEA-6R
Reserved
SPI_SCS1_N
O
Not Connected
SPI Chip Select 1
23
LEA-6A, LEA-6S, LEA-6H, LEA-6T
LEA-6R
Reserved
SPI_SCK
O
Not Connected
SPI Clock
24
25
All
All
VDDUSB
USB_DM
I
I/O
USB Supply
USB Data
26
All
USB_DP
I/O
USB Data
27
LEA-6A, LEA-6S, LEA-6H, LEA-6T
LEA-6R
EXTINT0
SPEED
I
I
External Interrupt Pin
Odometer Speedpulses
28
All
TIMEPULSE
O
Timepulse (1PPS)
21
I/O
Description
Not Connected
Table 10: Pinout
Pins designated Reserved should only be used with caution. For more information about Pinouts see the
LEA-6/NEO-6/MAX-6 Hardware Integration Manual [1].
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LEA-6 - Data Sheet
3 Electrical specifications
3.1 Absolute maximum ratings
Parameter
Symbol
Min
Max
Units
Power supply voltage
VCC
Condition
-0.5
3.6
V
Backup battery voltage
USB supply voltage
V_BCKP
VDDUSB
-0.5
-0.5
3.6
3.6
V
V
Input pin voltage
Vin
Vin_usb
-0.5
-0.5
3.6
VDDUSB
V
V
DC current trough any digital I/O pin (except supplies)
Ipin
10
mA
VCC_RF output current
Input power at RF_IN
ICC_RF
Prfin
100
15
mA
dBm
Antenna bias voltage
V_ANT
6
V
Antenna bias current
Storage temperature
I_ANT
Tstg
100
85
mA
°C
source impedance = 50 ,
continuous wave
-40
Table 11: Absolute maximum ratings
GPS receivers are Electrostatic Sensitive Devices (ESD) and require special precautions when
handling. For more information see section 6.4.
Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. The product is not protected against overvoltage or reversed
voltages. If necessary, voltage spikes exceeding the power supply voltage specification, given in
table above, must be limited to values within the specified boundaries by using appropriate
protection diodes. For more information see the LEA-6/ NEO-6/ MAX-6 Hardware Integration
Manual [1].
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LEA-6 - Data Sheet
3.2 Operating conditions
All specifications are at an ambient temperature of 25°C.
Parameter
Symbol
Module
Min
Typ
Max
Units
Power supply voltage
Supply voltage USB
VCC
VDDUSB
All
All
2.7
3.0
3.0
3.3
3.6
3.6
V
V
Backup battery voltage
Backup battery current
V_BCKP
I_BCKP
All
All
1.4
3.6
V
µA
Input pin voltage range
Digital IO Pin Low level input voltage
Vin
Vil
All
All
0
0
VCC
0.2*VCC
V
V
Digital IO Pin High level input voltage
Digital IO Pin Low level output voltage
Vih
Vol
All
All
0.7*VCC
VCC
0.4
V
V
Iol=4mA
Digital IO Pin High level output voltage
AADET_N low level input voltage
Voh
Vil
All
All
VCC -0.4V
<0.6
V
V
Ioh=4mA
Vo=2.1V
AADET_N high level input voltage
Vih
All
>0.75
V
Vo=0.6V
USB_DM, USB_DP
V_ANT antenna bias voltage
VinU
V_ANT
All
All
Antenna bias voltage drop
VCC_RF voltage
V_ANT_DROP
VCC_RF
All
All
VCC_RF output current
Antenna gain
ICC_RF
Gant
All
All
Receiver Chain Noise Figure
NFtot
LEA-6S/ LEA-6A/
LEA-6T/ LEA-6H
LEA-6R
Operating temperature
Topr
All
22
Condition
V_BCKP = 1.8V,
VCC = 0V
Compatible with USB with 22 Ohms series resistance
2.7
5.5
V
IANT < -50 mA
0.1
VCC-0.1
V
V
50
50
3.2
mA
dB
dB
1.5
-40
ICC_RF =50mA
dB
85
°C
Table 12: Operating conditions
Operation beyond the specified operating conditions can affect device reliability.
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LEA-6 - Data Sheet
3.3 Indicative power requirements
Table 13 lists examples of the total system supply current for a possible application.
Parameter
Peak supply current
11
Symbol
Module
Iccp
All
Icc Acquisition
All
Icc Tracking
(Max Performance mode)
Average supply
current12
Icc Tracking
(Eco mode)
Icc Tracking15
(Power Save Mode)
LEA-6H / LEA-6S /
LEA-6T
LEA-6A/ LEA-6R
LEA-6H / LEA-6S /
LEA-6T
LEA-6A/ LEA-6R
LEA-6S
LEA-6H
LEA-6A
Min
Typ
Max
Units
67
Condition
mA
VCC = 3.6V
4713
mA
VCC = 3.0V
4114
mA
VCC = 3.0V
14
40
mA
VCC = 3.0V
3914
mA
VCC = 3.0V
14
38
1214
mA
mA
VCC = 3.0V
VCC = 3.0V
1214
1114
mA
mA
VCC = 3.0V
VCC = 3.0V
Table 13: Indicative power requirements
Values in Table 13 are provided for customer information only as an example of typical power
requirements. Values are characterized on samples, actual power requirements can vary depending on
FW version used, external circuitry, number of SVs tracked, signal strength, type of start as well as time,
duration and conditions of test.
11
Use this figure to dimension maximum current capability of power supply. Measurement of this parameter with 1 Hz bandwidth.
Use this figure to determine required battery capacity.
13
>8 SVs in view, CNo >40 dBHz, current average of 30 sec after cold start.
14
with strong signals (>130 dBm), all visible satellites are tracked (>7 SV). For Cold Starts typical 12 min after First Fix. For Hot Starts typical
15 sec after First Fix.
15
Cyclic operation: Update rate 1 s.
12
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LEA-6 - Data Sheet
4 Mechanical specifications
Figure 3: Dimensions
For information regarding the Paste Mask and Footprint see the LEA-6/NEO-6/MAX-6 Hardware
Integration Manual [1].
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LEA-6 - Data Sheet
5 Qualification and certification
5.1 Reliability tests
All LEA-6 modules are based on GPS chips qualified according to AEC-Q100.
Tests for product family qualifications according to ISO 16750 "Road vehicles - Environmental conditions and
testing for electrical and electronic equipment”, and appropriate standards (see Table 14).
Test
Reference
Test Conditions
Temperature step
test
ISO16750-4
IEC60068-2-1
IEC60068-2-2
Function tests at stable temperature. The temperature has to decrease in 5K steps
from RT to -40°C followed by increase to +85°C in 5K steps.
Temperature
cycling
IEC60068-2-14 Na
-40°C / +125°C, 300 cycles, air to air
No function
Dry heat I
("desert")
IEC60068-2-2
+60°C / 5%rH,Toper max, Vccmax, 1000 hours, in function
Damp heat II
("tropical")
IEC60068-2-3
+60°C/95%rH, Toper max, Vccmax, 1000 hours, in function
High
Temp.Operating
Life (Life span)
IEC60068-2-2
1000hrs @ 85°C Ta
Toper max, Vccmax
Dry heat II
IEC60068-2-2
+125°C, 1000 hours, no function
Function test at
Umin, Unom,
Umax
ISO16750-4
IEC60068-2-1
IEC60068-2-2
Function test at Umin, Unom, Umax
1 hour / voltage level
Test at -40°C, RT, +85°C
Damp heat cyclic
IEC60068-2-30 Db Variation 1
+25°C...+55°C; >90% rH
6 cycles of 24 hours
Vibration in
function
IEC60068-2-6
5-500 Hz; 5g;
2.5 hrs/axis at –40°C
2.5 hrs/axis at +85°C
3 hrs/axis at RT
Total: 24 hours, function supervision
Mechanical Shock
IEC60068-2-27 Ea
30g/11ms (halfsine), 3 Shocks/axis, no function
Robustness of
terminations of
Surface Mounted
Devices
IEC60068-2-21 Ue1
1mm/s +/- 0.5mm/s
D>2mm
1 Bending cycle
Duration on Dmax: 20s +/- 1s
ESD (HBM)
JESD22-A114
AEC-Q100-002
Voltage level: 2000V
ESD (MM)
JESD22-A115
AEC-Q100-003
Voltage level: 200V
Table 14: u-blox qualification requirements
5.2 Approvals
Products marked with this lead-free symbol on the product label comply with the
“Directive 2002/95/EC of the European Parliament and the Council on the Restriction of
Use of certain Hazardous Substances in Electrical and Electronic Equipment” (RoHS).
All u-blox 6 GPS modules are RoHS compliant.
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LEA-6 - Data Sheet
6 Product handling & soldering
6.1 Packaging
LEA-6 modules are delivered as hermetically sealed, reeled tapes in order to enable efficient production,
production lot set-up and tear-down. For more information about packaging, see the u-blox Package
Information Guide [3].
Figure 4: Reeled u-blox modules
6.1.1 Reels
LEA-6 GPS modules are deliverable in quantities of 250pcs on a reel. LEA-6 modules are delivered using reel Type
B as described in the u-blox Package Information Guide [3].
Parameter
Specification
Reel Type
B
250
Delivery Quantity
Table 15: Reel information for LEA-6 modules
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LEA-6 - Data Sheet
6.1.2 Tapes
Figure 5 shows the position and orientation of LEA-6 modules as they are delivered on tape. The dimensions of
the tapes are specified in Figure 6.
Figure 5: Orientation for LEA-6 modules on tape
Figure 6: LEA tape dimensions (mm)
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LEA-6 - Data Sheet
6.2 Moisture Sensitivity Levels
LEA-6 modules are Moisture Sensitive Devices (MSD) in accordance to the IPC/JEDEC
specification.
LEA-6 modules are rated at MSL level 4. For more information regarding moisture sensitivity levels, labeling,
storage and drying see the u-blox Package Information Guide [3].
For MSL standard see IPC/JEDEC J-STD-020, which can be downloaded from www.jedec.org.
6.3 Reflow soldering
Reflow profiles are to be selected according to u-blox recommendations (see LEA-6/NEO-6/MAX-6 Hardware
Integration Manual [1]).
6.4 ESD handling precautions
LEA-6 modules contain highly sensitive electronic circuitry and are Electrostatic
Sensitive Devices (ESD). Observe precautions for handling! Failure to observe
these precautions can result in severe damage to the GPS receiver!
GPS receivers are Electrostatic Sensitive Devices (ESD) and require special precautions when handling. Particular
care must be exercised when handling patch antennas, due to the risk of electrostatic charges. In addition to
standard ESD safety practices, the following measures should be taken into account whenever handling the
receiver:

Unless there is a galvanic coupling between the local GND (i.e. the
work table) and the PCB GND, then the first point of contact when
handling the PCB must always be between the local GND and PCB
GND.

Before mounting an antenna patch, connect ground of the device

When handling the RF pin, do not come into contact with any
charged capacitors and be careful when contacting materials that
can develop charges (e.g. patch antenna ~10pF, coax cable ~5080pF/m, soldering iron, …)

To prevent electrostatic discharge through the RF input, do not
touch any exposed antenna area. If there is any risk that such
exposed antenna area is touched in non ESD protected work area,
implement proper ESD protection measures in the design.

When soldering RF connectors and patch antennas to the receiver’s
RF pin, make sure to use an ESD safe soldering iron (tip).
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LEA-6 - Data Sheet
7 Default settings
Interface
Settings
Serial Port 1 Output
9600 Baud, 8 bits, no parity bit, 1 stop bit.
Configured to transmit both NMEA and UBX protocols, but only following NMEA and no
UBX messages have been activated at start-up:
GGA, GLL, GSA, GSV, RMC, VTG, TXT
(in addition to the 6 standard NMEA messages the LEA-6T includes ZDA).
USB Output
Configured to transmit both NMEA and UBX protocols, but only following NMEA and no
UBX messages have been activated at start-up:
GGA, GLL, GSA, GSV, RMC, VTG, TXT
USB Power Mode: Bus-Powered.
(in addition to the 6 standard NMEA messages the LEA-6T includes ZDA).
9600 Baud, 8 bits, no parity bit, 1 stop bit
Automatically accepts following protocols without need of explicit configuration:
UBX, NMEA
The GPS receiver supports interleaved UBX and NMEA messages.
Automatically accepts following protocols without need of explicit configuration:
UBX, NMEA
The GPS receiver supports interleaved UBX and NMEA messages.
USB Power Mode: Bus-Powered.
Serial Port 1 Input
USB Input
TIMEPULSE
(1Hz Nav)
Power Mode
AssistNow
Autonomous
1 pulse per second, synchronized at rising edge, pulse length 100ms.
Maximum Performance mode, except LEA-6R which is in ECO mode.
Disabled.
Table 16: Available Protocols.
Refer to the LEA-6/NEO-6/MAX-6 Hardware Integration Manual [1] for information about further settings.
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LEA-6 - Data Sheet
8 Labeling and ordering information
8.1 Product labeling
u-blox 6 GPS module labels include important product
information. The location of the product type number is
shown in Figure 7.
PPP-GV-T-XXX
Product type number
Figure 7: Location of product type number on u-blox 6 module label
8.2 Explanation of codes
Three different product code formats are used. The Product Name is used in documentation such as this data
sheet and identifies all u-blox 6 products, independent of packaging and quality grade. The Ordering Code
includes options and quality, while the Type Number includes the hardware and firmware versions. Table 17
below details these three different formats:
Format
Structure
Product Name
Ordering Code
PPP-GV
PPP-GV-T
Type Number
PPP-GV-T-XXX
Table 17: Product Code Formats
The parts of the product code are explained in Table 18.
Code
Meaning
Example
PPP
Product Family
LEA
G
V
Product Generation
Variant
6 = u-blox 6
T = Timing, R = DR, etc.
T
Option / Quality Grade
Describes standardized functional element or quality grade such as different RF connector, FLASH
size, automotive grade etc.
Describes product details or options such as hard- and software revision, cable length, etc.
XXX
Product Detail
Table 18: part identification code
8.3 Ordering information
Ordering No.
Product
LEA-6A-0
u-blox 6 GPS Module, 17x22mm, 250 pcs/reel
LEA-6H-0
LEA-6S-0
u-blox 6 GPS Module, TCXO, Flash, 17 x 22mm, 250 pcs/reel
u-blox 6 GPS Module, TCXO, 17x22mm, 250 pcs/reel
LEA-6R-0
u-blox 6 GPS Module, Dead Reckoning, Flash, 17 x 22mm, 250 pcs/reel
LEA-6T-0
LEA-6T-1
u-blox 6 GPS Module, Precision Timing, TCXO, 17 x 22mm, 250 pcs/reel
u-blox 6 GPS module, Precision Timing, TCXO, Flash, 17x22mm 250pcs/reel
LEA-6T-2
Table 19: Product Ordering Codes
u-blox 6 GPS module, Precision Timing, TCXO, Flash, 17x22mm 250pcs/reel
Product changes affecting form, fit or function are documented by u-blox. For a list of Product Change
Notifications (PCNs) see our website at: http://www.u-blox.com/en/notifications.html.
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LEA-6 - Data Sheet
Related documents
[1]
LEA-6/NEO-6/MAX-6 Hardware Integration Manual, Docu. GPS.G6-HW-09007
[2]
[3]
u-blox 6 Receiver Description including Protocol Specification, Docu. No GPS.G6-SW-10018
u-blox Package Information Guide, Docu. No GPS-X-11004
[4]
GPS Compendium, Docu. No GPS-X-02007
[5]
GLONASS & GPS HW Designs Application Note, Docu. No GPS.G6-CS-10005
For regular updates to u-blox documentation and to receive product change notifications please register
on our homepage.
Revision history
Revision
Date
Name
Status / Comments
08/31/2009
tgri
Initial Release
1
09/21/2009
tgri
A
5/02/2010
tgri
update of section 1.3 GPS performance, section 1.4 block diagram,
section 3.2 peak supply current
Change of status to Advance Information. Update of section 1.9.2,
removed reference to Vddio – added USB driver certification. Update
of section 3.2 table 11: average supply current & TTFF, section 5.1:
addition of table 12.
B
C
4/23/2010
6/24/2010
tgri
dhur
D
12/20/2010
dhur
E
06/06/2011
dhur
E1
20/09/2011
cbib
E2
25/04/2013
smos
R10
27/11/2014
amil
Inclusion of LEA-6R.
Change of status to Preliminary. Update of section 1.3, 1.9.4, 1.12.2,
3.1, 3.2 and chapter 2 and 4. General clean-up and consistency
check.
Added information on LEA-6H with FW7.01 in section 1.3, 1.9 and
3.3. Updated Chapter 1.11.
Added information on LEA-6T-1 in Table 1, chapters 1.3, 1.14 and
8.3.
Changed Status. Revised table section 1.2, updated section 1.3 GPS
performance for FW 7.03, added section 1.8 GLONASS, updated P rfin
in section 3.1, updated chapter 6.
Added PCN reference to product LEA-6R-0-002 on page 2. Revised
contact page.
Last revision with document number GPS.G6-HW-09004.
Added LEA-6T-2
R11
R12
07/09/2015
20/06/2016
amil
amil
Production status. Updated contacts.
Modified Figure 3 dimension K
R13
17/02/2017
amil
Added FW6.04 (LEA-6T-2)
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LEA-6 - Data Sheet
Contact
For complete contact information visit us at www.u-blox.com
u-blox Offices
North, Central and South America
u-blox America, Inc.
Phone:
+1 703 483 3180
E-mail:
[email protected]
Regional Office West Coast:
Phone:
+1 408 573 3640
E-mail:
[email protected]
Headquarters
Europe, Middle East, Africa
u-blox AG
Phone:
+41 44 722 74 44
E-mail:
[email protected]
Support: [email protected]
Technical Support:
Phone:
E-mail:
+1 703 483 3185
[email protected]
Asia, Australia, Pacific
u-blox Singapore Pte. Ltd.
Phone:
+65 6734 3811
E-mail:
[email protected]
Support: [email protected]
Regional Office Australia:
Phone:
+61 2 8448 2016
E-mail:
[email protected]
Support: [email protected]
Regional Office China (Beijing):
Phone:
+86 10 68 133 545
E-mail:
[email protected]
Support: [email protected]
Regional Office China (Chongqing):
Phone:
+86 23 6815 1588
E-mail:
[email protected]
Support: [email protected]
Regional Office China (Shanghai):
Phone:
+86 21 6090 4832
E-mail:
[email protected]
Support: [email protected]
Regional Office China (Shenzhen):
Phone:
+86 755 8627 1083
E-mail:
[email protected]
Support: [email protected]
Regional Office India:
Phone:
+91 80 4050 9200
E-mail:
[email protected]
Support: [email protected]
Regional Office Japan (Osaka):
Phone:
+81 6 6941 3660
E-mail:
[email protected]
Support: [email protected]
Regional Office Japan (Tokyo):
Phone:
+81 3 5775 3850
E-mail:
[email protected]
Support: [email protected]
Regional Office Korea:
Phone:
+82 2 542 0861
E-mail:
[email protected]
Support: [email protected]
Regional Office Taiwan:
Phone:
E-mail:
Support:
UBX-14044797
Production Information
+886 2 2657 1090
[email protected]
[email protected]
Page 26 of 26