CAM-M8 Series Datasheet

U-Blox America Inc.

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Datasheet

CAM-M8
u-blox M8 Concurrent GNSS Antenna Modules
Data Sheet
Abstract
Technical data sheet describing the CAM-M8 module series,
which provides concurrent reception of
up to 3 GNSS (GPS, Galileo, GLONASS, BeiDou). CAM-M8 includes an embedded, omni-
directional
and wideband antenna and provides the option to connect an external antenna as well.
www.u-blox.com
UBX-15031574 - R04
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Document Information
Title CAM-M8
Subtitle Data Sheet
Document type Data Sheet
Document number UBX-15031574
Revision and date R04 28-Jan-2019
Document status Production Information
Product status Corresponding content status
In Development /
Prototype
Objective Specification Target values. Revised and supplementary data will be published later.
Engineering Sample Advance Information Data based on early testing. Revised and supplementary data will be published later.
Initial Production Early Production Information Data from product verification. Revised and supplementary data may be published later.
Mass Production /
End of Life
Production Information Document contains the final product specification.
This document applies to the following products:
Product name Type number ROM/FLASH version PCN reference
CAM-M8Q CAM-M8Q-0-10 ROM SPG 3.01 UBX-16016365
CAM-M8C CAM-M8C-0-10 ROM SPG 3.01 UBX-16016365
u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only
permitted with the
express written permission of u-blox.
The information contained herein is provided “as is” and u
-blox assumes no liability for its use. No warranty, either express or
implied, is given, including but not limited
to, 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 without notice. For the most recent
documents, visit www.u
-blox.com.
Copyright © u
-blox AG.
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Contents
Document Information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Functional description ......................................................................................................................... 5
1.1 Overview ........................................................................................................................................................ 5
1.2 Product features ......................................................................................................................................... 6
1.3 GNSS performance ..................................................................................................................................... 6
1.4 Block diagram .............................................................................................................................................. 7
1.5 Supported GNSS constellations .............................................................................................................. 8
1.5.1 GPS ........................................................................................................................................................ 8
1.5.2 GLONASS ............................................................................................................................................. 8
1.5.3 BeiDou ................................................................................................................................................... 8
1.5.4 Galileo .................................................................................................................................................... 9
1.6 Assisted GNSS (A-GNSS) .......................................................................................................................... 9
1.6.1 AssistNow™ Online............................................................................................................................. 9
1.6.2 AssistNow™ Offline ............................................................................................................................ 9
1.6.3 AssistNow™ Autonomous ................................................................................................................ 9
1.7 Augmentation systems ........................................................................................................................... 10
1.7.1 Satellite-Based Augmentation System (SBAS) ......................................................................... 10
1.7.2 QZSS ................................................................................................................................................... 10
1.7.3 IMES .................................................................................................................................................... 10
1.7.4 Differential GPS (D-GPS) ................................................................................................................. 11
1.8 Broadcast navigation data and satellite signal measurements ..................................................... 11
1.9 Odometer .................................................................................................................................................... 11
1.10 Geofencing .................................................................................................................................................. 11
1.11 Message Integrity Protection ................................................................................................................. 11
1.12 Spoofing detection ................................................................................................................................... 12
1.13 EXTINT: External interrupt ...................................................................................................................... 12
1.13.1 Pin control .......................................................................................................................................... 12
1.13.2 Aiding .................................................................................................................................................. 12
1.14 TIMEPULSE ................................................................................................................................................ 12
1.15 Protocols and interfaces ......................................................................................................................... 13
1.16 Interfaces .................................................................................................................................................... 13
1.16.1 UART ................................................................................................................................................... 13
1.16.2 SPI ........................................................................................................................................................ 13
1.16.3 Display Data Channel (DDC) ........................................................................................................... 13
1.17 Clock generation ........................................................................................................................................ 14
1.17.1 Oscillators .......................................................................................................................................... 14
1.17.2 Real-Time Clock (RTC) ..................................................................................................................... 14
1.18 Power management ................................................................................................................................. 14
1.18.1 DC-DC converter ............................................................................................................................... 14
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1.18.2 Power Mode Setup ............................................................................................................................ 15
1.19 Antenna ....................................................................................................................................................... 16
1.19.1 Embedded antenna .......................................................................................................................... 16
1.19.2 External GPS/GLONASS antenna connectivity .......................................................................... 16
1.19.3 Active antenna control (LNA_EN) ................................................................................................. 16
1.19.4 Embedded antenna operation ....................................................................................................... 16
2 Pin definition ........................................................................................................................................ 18
2.1 Pin assignment .......................................................................................................................................... 18
2.2 Pin name changes ..................................................................................................................................... 19
3 Configuration management ............................................................................................................ 20
3.1 Interface Selection (D_SEL) .................................................................................................................... 20
4 Electrical specification ..................................................................................................................... 21
4.1 Absolute maximum rating ....................................................................................................................... 21
4.2 Operating conditions ................................................................................................................................ 21
4.3 Indicative power requirements ............................................................................................................... 22
5 Mechanical specifications ............................................................................................................... 23
6 Reliability tests and approvals ....................................................................................................... 24
6.1 Reliability tests .......................................................................................................................................... 24
6.2 Approvals .................................................................................................................................................... 24
7 Product handling & soldering .......................................................................................................... 25
7.1 Packaging ................................................................................................................................................... 25
7.2 Reels ............................................................................................................................................................ 25
7.3 Tapes ........................................................................................................................................................... 25
7.4 Shipment, storage and handling ........................................................................................................... 25
7.4.1 Moisture Sensitivity Levels ............................................................................................................ 26
7.4.2 Reflow soldering ................................................................................................................................ 26
7.4.3 Antenna ageing ................................................................................................................................. 26
7.4.4 ESD handling precautions .............................................................................................................. 26
8 Default messages ............................................................................................................................... 27
9 Labeling and ordering information ............................................................................................... 28
9.1 Product labeling ......................................................................................................................................... 28
9.2 Explanation of codes ................................................................................................................................ 28
9.3 Ordering codes ........................................................................................................................................... 28
Appendix ....................................................................................................................................................... 29
A Glossary ................................................................................................................................................. 29
Related documents ................................................................................................................................... 30
Revision history .......................................................................................................................................... 30
Contact .......................................................................................................................................................... 31
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1 Functional description
1.1 Overview
The u-blox concurrent CAM-M8 series GNSS antenna modules benefit from the exceptional
performance of the u-blox M8 multi-GNSS (GPS/QZSS, GLONASS, GALILEO and BeiDou) engine in
an industry proven form factor. The CAM-M8 modules offer high sensitivity and strong signal levels
in an ultra-compact form factor.
The CAM-M8 series modules utilize concurrent reception of up to three GNSS systems (GPS/Galileo
together with BeiDou or GLONASS), recognize multiple constellations simultaneously, and provide
outstanding positioning accuracy in scenarios where urban canyon or weak signals are involved. For
even better and faster positioning improvement, the CAM-M8 series supports augmentation of
QZSS, GAGAN and IMES together with WAAS, EGNOS, and MSAS. The CAM-M8 series also
supports message integrity protection, geofencing, and spoofing detection with configurable
interface settings to easily fit to customer applications.
Incorporating the CAM-M8 modules into customer designs is simple and straightforward, thanks to
the embedded GNSS chip antenna, a small footprint of 9.6 x 14.0 x 1.95 mm, and sophisticated
interference suppression that ensures maximum performance even in GNSS-hostile environments.
The low power consumption, and thin design allow end devices to be slimmer and smaller.
Despite the miniature size, the GNSS chip antenna in the CAM-M8 series performs extremely well
compared to traditional patch antennas. The omni-directional radiation pattern increases flexibility
for device installation. Optionally, CAM-M8 modules can be connected to an external GNSS antenna.
The SMD design keeps manufacturing costs to a minimum and the small mass ensures high
reliability.
Because the customer PCB is part of the antenna solution, some PCB layout design rules should
be followed in order to maintain optimal performance of the on-board GNSS chip antenna. For
more information, see the CAM-M8 Hardware Integration Manual [1].
The CAM-M8 series modules target industrial and consumer applications that require concurrent
GPS/Galileo and GLONASS or GPS/Galileo and BeiDou reception. The CAM-M8C is optimized for cost
sensitive applications and has the lowest power consumption, while the CAM-M8Q provides best
performance. The CAM-M8 series is form-factor compatible to UC530 and UC530M modules,
allowing the upgrade of existing designs with minimal effort.
The CAM-M8 series modules use GNSS chips qualified according to AEC-Q100, are manufactured in
ISO/TS 16949 certified sites, and fully tested on a system level. Qualification tests are performed as
stipulated in the ISO 16750 standard: “Road vehicles Environmental conditions and testing for
electrical and electronic equipment”.
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1.2 Product features
Model Category GNSS Suppl
y Interfaces Features Grade
Standard Precision GNSS
Dead Reckoning
Timing
GPS / QZSS
GLONASS
BeiDou
Number of concurrent
GNSS
1.65
V 3.6 V
2.7 V
3.6 V
UART
USB
SPI
DDC (I
2
C compliant)
Programmable (flash)
Data logging
Additional SAW
Additional LNA
RTC crystal
Oscillator
Built
-
in antenna
Built
-
in antenna supply and
supervisor
Timepulse
Standar
d
Professional
Automotive
CAM-M8Q
3
T
1
CAM-M8C
3
C
1
= Yes, but with a higher backup current
C = Crystal / T = TCXO
1.3 GNSS performance
Parameter Specification
Receiver type 72-channel u-blox M8 engine
GPS L1C/A, SBAS L1C/A, QZSS L1C/A, QZSS L1 SAIF, GLONASS L1OF, BeiDou B1I, Galileo
E1B/C
Accuracy of time pulse signal RMS 30 ns
60 ns
99%
Frequency of time pulse signal 0.25 Hz…10 MHz (configurable)
Operational limits 1 Dynamics 4 g
Altitude 50,000 m
Velocity 500 m/s
Velocity accuracy 2 0.05 m/s
Heading accuracy 2 0.3 degrees
GNSS GPS &
GLONASS
GPS GLONASS BEIDOU GALILEO
Horizontal position accuracy 3 2.5 m 2.5 m 4 m 3 m TBC 4
Max navigation update rate 5 10 Hz 18 Hz 18 Hz 18 Hz 18 Hz
CAM-M8Q
Time-To-First-Fix 6 Cold start 26 s 29 s 30 s 34 s 45 s
Hot start 1 s 1 s 1 s 1 s 1 s
Aided starts 7 2 s 2 s 2 s 3 s 7 s
Tracking & Navigation 167 dBm 166 dBm 166 dBm 160 dBm 159 dBm
1 Assuming Airborne < 4 g platform
2 50% @ 30 m/s
3 CEP, 50%, 24 hours static, -130 dBm, > 6 SVs
4 To be confirmed when Galileo reaches full operational capability
5 Rates with SBAS and QZSS enabled for > 98% fix report rate under typical conditions
6 All satellites at -130 dBm, except Galileo at -127 dBm
7 Dependent on aiding data connection speed and latency
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Parameter Specification
Sensitivity 8 Reacquisition 160 dBm 160 dBm 156 dBm 157 dBm 153 dBm
Cold start 148 dBm 148 dBm 145 dBm 143 dBm 138 dBm
Hot start 157 dBm 157 dBm 156 dBm 155 dBm 151 dBm
CAM-M8C
Time-To-First-Fix 6 Cold start 26 s 30 s 31 s 39 s 57 s
Hot start 1 s 1 s 1 s 1 s 1 s
Aided starts 7 3 s 3 s 3 s 7 s 7 s
Sensitivity 8 Tracking & Navigation 164 dBm 164 dBm 163 dBm 160 dBm 154 dBm
Reacquisition 160 dBm 159 dBm 156 dBm 155 dBm 152 dBm
Cold start 148 dBm 147 dBm 145 dBm 143 dBm 133 dBm
Hot start 157 dBm 156 dBm 155 dBm 155 dBm 151 dBm
Table 1: CAM-M8Q/C performance in different GNSS modes (Default is concurrent reception of GPS and GLONASS, incl.
QZSS, SBAS)
1.4 Block diagram
Figure 1: CAM-M8Q/C block diagram
8 Demonstrated with a good external LNA
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1.5 Supported GNSS constellations
The CAM-M8 series GNSS modules are concurrent GNSS receivers which can receive and track
multiple GNSS systems: GPS, Galileo, GLONASS and BeiDou. Owing to the dual-frequency RF front-
end architecture, either GLONASS or BeiDou can be processed concurrently with GPS and Galileo
signals providing reception of three GNSS systems. By default the M8 receivers are configured for
concurrent GPS and GLONASS, including SBAS and QZSS reception. If power consumption is a key
factor, then the receiver should be configured for a single GNSS operation using GPS, Galileo,
GLONASS or BeiDou and disabling QZSS and SBAS. The module can be configured to receive any
single GNSS constellation or within the set of permissible combinations shown below.
GPS Galileo GLONASS BeiDou
Table 2: Permissible GNSS combinations (= enabled)
The augmentation systems: SBAS and QZSS can be enabled only if GPS operation is configured.
Galileo is not enabled as the default configuration.
1.5.1 GPS
The u-blox CAM-M8 series positioning modules are designed to receive and track the L1C/A signals
provided at 1575.42 MHz by the Global Positioning System (GPS).
1.5.2 GLONASS
The CAM-M8 modules can receive and process GLONASS concurrently with GPS or BeiDou. The
Russian GLONASS satellite system is an alternative system to the US-based Global Positioning
System (GPS). u-blox CAM-M8 positioning modules are designed to receive and track the L1OF
signals GLONASS provided at 1602 MHz + k*562.5 kHz, where k is the satellite’s frequency channel
number (k = 7,..., 5, 6). The ability to receive and track GLONASS L1OF satellite signals allows design
of GLONASS receivers where required by regulations.
In order to take advantage of GPS and GLONASS, dedicated hardware preparation must be taken
during the design-in phase, see the CAM-M8 Hardware Integration Manual [1] for u-blox design
recommendations.
1.5.3 BeiDou
The CAM-M8 series positioning modules can receive and process the B1I signals broadcast at
1561.098 MHz from the BeiDou Navigation Satellite System. The ability to receive and track BeiDou
signals in conjunction with another constellation results in higher coverage, improved reliability and
better accuracy. Currently, BeiDou is not fully operational globally and provides Chinese regional
coverage only. Global coverage is scheduled for 2020.
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1.5.4 Galileo
The CAM-M8 series positioning modules can receive and track the E1-B/C signals centered on the
GPS L1 frequency band. GPS and Galileo signals can be processed concurrently together with either
BeiDou or GLONASS signals, enhancing coverage, reliability and accuracy. The SAR return link
message (RLM) parameters for both short and long versions are decoded by the receiver and made
available to users via UBX proprietary messages.
Galileo has been implemented according to ICD release 1.2 (November 2015) and verified with
live signals from the Galileo in-orbit validation campaign. Since the Galileo satellite system has
not yet reached Initial (IOC) nor Full Operational Capability (FOC), changes to the Galileo signal
specification (OS SIS ICD) remain theoretically possible. u-blox therefore recommends to use
Flash based modules in designs utilizing Galileo signals in order to allow for a FW update in the
unlikely event of a change to the Galileo signal specification (OS SIS ICD).
Galileo reception is by default disabled, but can be enabled by sending a configuration message
(UBX-CFG-GNSS) to the receiver. See the u-blox 8 / u-blox M8 Receiver Description Including
Protocol Specification [2] for more information.
1.6 Assisted GNSS (A-GNSS)
Supply of aiding information, such as ephemeris, almanac, rough last position and time, will reduce
the time to first fix significantly and improve the acquisition sensitivity. The u-blox CAM-M8 series
receivers support the u-blox AssistNow Online and AssistNow Offline A-GNSS services, support
AssistNow Autonomous, and are OMA SUPL compliant.
1.6.1 AssistNow™ Online
With AssistNow Online, an internet-connected GNSS device downloads assistance data from u-
blox’s AssistNow Online Service at system start-up. AssistNow Online is network operator
independent and globally available.
u-blox only sends ephemeris data for those satellites currently visible to the device requesting the
data, thus minimizing the amount of data transferred.
Supply of aiding information, such as ephemeris, almanac, rough last position and time, will reduce
the time to first fix significantly and improve the acquisition sensitivity.
The AssistNow Online service provides data for GPS, GLONASS, BeiDou, Galileo and QZSS
1.6.2 AssistNow™ Offline
With AssistNow Offline, users download u-blox’s long-term orbit data from the Internet at their
convenience. The orbit data must be stored in the memory of application processor. Therefore, the
service requires no connectivity at system start-up and enables a position fix within seconds, even
when no network is available. AssistNow Offline data offers augmentation for up to 35 days.
AssistNow Offline service provides data for GPS and GLONASS only, BeiDou and Galileo are not
currently supported
1.6.3 AssistNow™ Autonomous
AssistNow Autonomous provides aiding information without the need for a host or external network
connection. Based on previous broadcast satellite ephemeris data downloaded to and stored by the
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GNSS receiver, AssistNow Autonomous automatically generates accurate predictions of satellite
orbital data (“AssistNow Autonomous data”) that is usable for future GNSS position fixes. The
concept capitalizes on the periodic nature of GNSS satellites; by capturing strategic ephemeris data
at specific times of the day.
u-blox’s AssistNow Autonomous benefits are:
Faster fix in situations where GNSS satellite signals are weak
No connectivity required
Compatible with AssistNow Online (can work stand-alone, or in tandem with the AssistNow
Online service)
No integration effort, calculations are done in the background, transparent to the user.
The u-blox ROM-based CAM-M8Q/C receiver can use AssistNow Autonomous to calculate GPS
only orbit predictions for 3 days.
For more details on A-GNSS see the u-blox 8 / u-blox M8 Receiver Description Including Protocol
Specification [2].
1.7 Augmentation systems
1.7.1 Satellite-Based Augmentation System (SBAS)
The u-blox CAM-M8 series positioning modules support SBAS. These systems supplement GPS data
with additional regional or wide area GPS augmentation data. The system broadcasts augmentation
data via satellite and this information can be used by GNSS receivers to improve the resulting
precision. SBAS satellites can be used as additional satellites for ranging (navigation), further
enhancing precision and availability. The following SBAS types are supported with CAM-M8
modules: GAGAN, WAAS, EGNOS and MSAS.
For more details, see the u-blox 8 / u-blox M8 Receiver Description Including Protocol
Specification [2].
1.7.2 QZSS
The Quasi-Zenith Satellite System (QZSS) is a regional navigation satellite system that transmits
additional GPS L1 C/A signals for the Pacific region covering Japan and Australia. CAM-M8Q/C
positioning modules are able to receive and track these signals concurrently with GPS signals,
resulting in better availability especially under challenging signal conditions, e.g. in urban canyons.
The L1- SAIF signal provided by QZSS can be enabled for reception via a GNSS configuration
message.
1.7.3 IMES
The Japanese Indoor MEssaging System (IMES) system is used for indoor position reporting using
low-power transmitters which broadcast a GPSlike signal. CAM-M8Q/C modules can be configured
to receive and demodulate the signal to provide an in-door location estimate.
This service is authorized and available only in Japan.
IMES reception is disabled by default
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1.7.4 Differential GPS (D-GPS)
The u-blox CAM-M8 series receivers support differential GPS data according to RTCM 10402.3 [4].
The use of differential GPS data improves GPS position accuracy. The RTCM implementation
supports the following RTCM 2.3 messages:
Message Type Description
1 Differential GPS Corrections
2 Delta Differential GPS Corrections
3 GPS Reference Station Parameters
9 GPS Partial Correction Set
Table 3: Supported RTCM 2.3 messages
RTCM corrections cannot be used together with SBAS.
For more details, see the u-blox 8 / u-blox M8 Receiver Description Including Protocol
Specification [2].
1.8 Broadcast navigation data and satellite signal
measurements
The CAM-M8 series modules can output all the GNSS broadcast data upon reception from tracked
satellites. This includes all the supported GNSS signals plus the augmentation services SBAS, QZSS
and IMES. The receiver also makes available the tracked satellite signal information, i.e. raw code
phase and Doppler measurements in a form aligned to the ETSI mobile cellular location services
protocol (RRLP) [6]. For more details, see the u-blox 8 / u-blox M8 Receiver Description Including
Protocol Specification [2].
1.9 Odometer
The odometer provides information on travelled ground distance (in meters) using solely the position
and Doppler-based velocity of the navigation solution. For each computed travelled distance since
the last odometer reset, the odometer estimates a 1-sigma accuracy value. The total cumulative
ground distance is maintained and saved in the BBR memory.
The odometer feature is disabled by default. For more details, see the u-blox 8 / u-blox M8
Receiver Description Including Protocol Specification [2].
1.10 Geofencing
The CAM-M8 series modules support up to four circular Geofencing areas defined on the Earth’s
surface using a 2D model. Geofencing is active when at least one Geo-fence is defined, the current
status can be found by polling the receiver. A GPIO pin can be nominated to indicate status to e.g.
wake up a host on activation.
1.11 Message Integrity Protection
The CAM-M8 modules provide a function to detect third party interference with the UBX message
steam sent from receiver to host. The security mechanism “signs” nominated messages via a
subsequent UBX message. This message signature is then compared with one generated by the host
to determine if the message data has been altered. The signature algorithm seed can use one fixed
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secret ID key set by eFuse in production and a dynamic ID key set by the host, enabling users to
detect “man-in-the-middle” style attacks.
1.12 Spoofing detection
Spoofing is a process whereby a malicious third party tries to control the reported position via a
“fake” GNSS broadcast signal. This may result in the form of reporting incorrect position, velocity or
time. To combat against this, CAM-M8 series modules include spoofing detection measures to alert
the host when signals appear to be suspicious. The receiver combines a number of checks on the
received signals looking for inconsistencies across several parameters.
This feature does not guarantee to detect all spoofing attacks.
1.13 EXTINT: External interrupt
EXTINT is an external interrupt pin with fixed input voltage thresholds with respect to VCC_IO. It can
be used for Control of the receiver or for Aiding.
For more information about how to implement and configure these features, see the u-blox 8 / u-blox
M8 Receiver Description Including Protocol Specification [2] and the CAM-M8 Hardware Integration
Manual [1].
1.13.1 Pin control
The pin control feature allows overriding the automatic active/inactive cycle of Power Save Mode.
The state of the receiver can be controlled through the EXTINT pin.
The receiver can also be forced OFF using EXTINT when Power Save Mode is not active.
1.13.2 Aiding
The EXTINT pin can be used to supply time or frequency aiding data to the receiver.
For time aiding, hardware time synchronization can be achieved by connecting an accurate time
pulse to the EXTINT pin.
Frequency aiding can be implemented by connecting a periodic rectangular signal with a frequency
up to 500 kHz and arbitrary duty cycle (low/high phase duration must not be shorter than 50 ns) to
the EXTINT pin. Provide the applied frequency value to the receiver using UBX messages.
1.14 TIMEPULSE
A configurable time pulse signal is available with CAM-M8 series modules.
The TIMEPULSE output generates pulse trains synchronized with GPS or UTC time grid with
intervals configurable over a wide frequency range. Thus it may be used as a low frequency time
synchronization pulse or as a high frequency reference signal.
By default the time pulse signal is configured to 1 pulse per second. For more information, see the
u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [2].
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1.15 Protocols and interfaces
Protocol Type
NMEA Input/output, ASCII, 0183, version 4.0 (Configurable to V 2.1, V 2.3 or V4.1 )
UBX Input/output, binary, u-blox proprietary
RTCM Input, message 1, 2, 3, 9
Table 4: Available Protocols
All protocols are available on UART, DDC (I2C compliant) and SPI. For specification of the various
protocols, see the u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [2].
1.16 Interfaces
A number of interfaces are provided for data communication. The embedded firmware uses these
interfaces according to their respective protocol specifications.
1.16.1 UART
The CAM-M8 series modules support 1 UART interfaces, which can be used for communication to a
host. It supports configurable baud rates. For supported baud rates, see the u-blox 8 / u-blox M8
Receiver Description Including Protocol Specification [2].
Designs must allow access to the UART and the SAFEBOOT_N function pin for future service,
updates and reconfiguration.
1.16.2 SPI
The SPI interface is designed to allow communication to a host CPU. The interface can be operated
in slave mode only. The maximum transfer rate using SPI is 125 kB/s and the maximum SPI clock
frequency is 5.5 MHz.
SPI is not available in the default configuration, because its pins are shared with the UART and
DDC interfaces. The SPI interface can be enabled by connecting D_SEL (pin 20) to ground (see
section 3.1).
1.16.3 Display Data Channel (DDC)
An I2C compliant DDC interface is available for communication with an external host CPU or u-blox
cellular modules. The interface can be operated in slave mode only. The DDC protocol and electrical
interface are fully compatible with the Fast-Mode of the I2C industry standard. Since the maximum
SCL clock frequency is 400 kHz, the maximum transfer rate is 400 kb/s.
The maximum bit rate is 400 kb/s. The interface stretches the clock when slowed down while
serving interrupts, so real bit rates may be slightly lower.
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1.17 Clock generation
1.17.1 Oscillators
The CAM-M8Q concurrent GNSS module uses a TCXO oscillator. The TCXO option allows accelerated
weak signal acquisition, enabling faster start and reacquisition times.
The CAM-M8C concurrent GNSS module uses a crystal-based oscillator. This makes the CAM-M8C
a more cost efficient solution.
Oscillators used on CAM-M8 series modules are carefully selected and screened for stability and
against frequency perturbations across the full operating range (40 °C to +85 °C).
The careful selection and qualification of critical parts, such as GNSS oscillators, has resulted in
u-blox modules being the most reliable positioning modules in the industry, particularly in
challenging conditions
1.17.2 Real-Time Clock (RTC)
In the CAM-M8Q the RTC is driven by a 32 kHz oscillator, which makes use of an external RTC crystal.
If the main supply voltage fails and a battery is connected to V_BCKP, parts of the receiver switch
off, but the RTC still runs providing a timing reference for the receiver. This operating mode is called
Hardware Backup Mode, which enables all relevant data to be saved in the backup RAM to allow a hot
or warm start later.
The CAM-M8C has no integrated RTC crystal. The CAM-M8C can operate in single crystal mode,
where the 26 MHz crystal oscillator can be used to provide frequency reference to the RTC without
using an additional RTC crystal in Hardware Backup Mode. This makes the CAM-M8C a more cost
efficient solution at the expense of a higher backup current.
The current time is maintained in the RTC and ephemeris and other last known data is kept in the
backup RAM. In A-GNSS based systems, the RTC is not required when coarse or fine time
information is available from the network.
More information, see the CAM-M8 Hardware Integration Manual [1].
1.18 Power management
The u-blox M8 technology offers a power optimized architecture with built-in autonomous power
saving functions to minimize power consumption at any given time. Furthermore, the receiver can
be used in two operating modes: Continuous mode for best performance or Power Save Mode for
optimized power consumption respectively.
1.18.1 DC-DC converter
The CAM-M8 module integrates a DC-DC converter, allowing reduced power consumption especially
when using a main supply voltage above 2.5 V.
For more information, see the CAM-M8 Hardware Integration Manual [1].
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1.18.2 Power Mode Setup
u-blox M8 modules can be configured to run in either continuous or a choice of Power Save mode
configurations. A template of power mode settings can be used to easily select typical power mode
setups to cover the majority of users’ requirements.
For specific power saving applications the user has the option to fully configure via the power save
mode configuration. For more information, see section 1.18.2.2.
The u-blox M8 modules’ power mode setup offers a choice of continuous operation and preset Power
Save Mode Configurations.
Continuous (default) mode for best GNSS performance vs power consumption
Continuous with no compromise in power consumption
A 1 Hz cyclic tracking mode for aggressive power reduction
Choice of 2 or 4 Hz 9 cyclic tracking modes for typical wearable applications
ON/OFF interval mode
1.18.2.1 Continuous Mode
Continuous Mode uses the acquisition engine at full performance resulting in the shortest possible
TTFF and the highest sensitivity. It searches for all possible satellites until the almanac is completely
downloaded. The receiver then switches to the tracking engine to lower power consumption.
Thus, a lower tracking current consumption level will be achieved when:
A valid GNSS position is obtained
The entire almanac has been downloaded
The ephemeris for each satellite in view is valid
1.18.2.2 Power Save Mode
For specific power saving applications outside the typical preset power mode setups, users can
configure a tailored Power Save Mode.
Power Save Mode provides two dedicated methods, ON/OFF and Cyclic tracking, that reduce average
current consumption in different ways to match the needs of the specific application. These
operations can be set by using a specific UBX message.
For more information about power management strategies, see the u-blox 8 / u-blox M8 Receiver
Description Including Protocol Specification [2]
.
9 Single GNSS constellation configuration only
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1.19 Antenna
The CAM-M8 concurrent GNSS modules are designed with integrated GNSS chip antenna.
Optionally, the CAM-M8 series modules can be connected to an external GNSS antenna.
Because the customer PCB is used as a part of antenna, some important PCB layout design rules
should be followed in order to maintain good performance of the on-board GNSS chip antenna.
For more information, see the CAM-M8 Hardware Integration Manual [1].
1.19.1 Embedded antenna
The CAM-M8 series modules have an embedded GNSS antenna and the signal is further filtered and
amplified by internal Low Noise Amplifier (LNA), which is available at the RF_OUT output. The
antenna signal RF_OUT shall be connected externally to RF_IN Antenna Input signal via a short trace
between pads. For more information, see the CAM-M8 Hardware Integration Manual [1].
1.19.2 External GPS/GLONASS antenna connectivity
The customer may use an external active GNSS antenna connected via an external RF-switch. It is
suggested that the active antenna has a net gain including cable loss in the range from +10 dB to
+30 dB. Specified sensitivity is measured with an external low noise (NF < 1dB, G > 15dB) amplifier.
The antenna shall provide simultaneous reception of both GPS 1575 MHz and GLONASS bands 1598
to 1606 MHz.
External passive antenna is not recommended. For more information concerning external
antenna option, see the CAM-M8 Hardware Integration Manual [1].
1.19.3 Active antenna control (LNA_EN)
The LNA_EN Pin can be used to turn on and off an external LNA or an active antenna. This reduces
power consumption in Power Save Mode (Backup mode).
When LNA_EN Pin is used externally, an external pull down resistor should be connected at
LNA_EN signal. For more information, see the CAM-M8 Hardware Integration Manual [1].
1.19.4 Embedded antenna operation
The embedded GNSS chip antenna provides optimal radiation efficiency 80% typ. with 80x40 mm
ground plane. The GNSS chip antenna provides linear polarization with peak gain 1.1 dBi and
radiation pattern optimized for portable devices. The chip antenna is insensitive to surroundings and
has high tolerance against frequency shifts. Figure 2 shows the typical free space radiation patterns
of the embedded GNSS chip antenna at 1575 GHz. However, on small ground plane widths, the
antenna gain and radiation efficiency is reduced.
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Figure 2: 1.575 GHz typical free space radiation patterns
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2 Pin definition
2.1 Pin assignment
Figure 3: Pin assignment of CAM-M8Q/C
No Name I/O Description
1 VCC_IO IO Supply Voltage
2 Reserved Reserved
3 SDA /
SPI CS_N
I/O DDC Data if D_SEL =1 (or open)
SPI Chip Select if D_SEL = 0
4 GND Ground
5 GND Ground
6 SCL /
SPI CLK
I/O DDC Clock if D_SEL =1(or open)
SPI Clock if D_SEL = 0
7 EXTINT External Interrupt Pin
8 V_BCKP Backup voltage supply
9 VCC Supply voltage
10 GND Ground
11 GND Ground
12 GND Ground
13 GND Ground
14 GND Ground
15 GND Ground
16 RF_OUT Embedded Antenna Output (50 ohm)
17 RF_IN GPS/GNSS signal input
18 GND Ground
19 GND Ground
20 D_SEL Interface select
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No Name I/O Description
21 GND Ground
22 GND Ground
23 RESET_N RESET_N
24 SAFEBOOT_N SAFEBOOT_N (for future service, updates and
reconfiguration, leave OPEN)
25 TXD /
SPI MISO
O Serial Port if D_SEL =1 (or open)
SPI MISO if D_SEL = 0
26 RXD /
SPI MOSI
I Serial Port if D_SEL =1 (or open)
SPI MOSI if D_SEL = 0
27 GND Ground
28 Reserved Reserved
29 TIMEPULSE O Time pulse (1 PPS)
30 LNA_EN Antenna control
31 GND Ground
Table 5: Pin out for CAM-M8Q/C
Pins designated as “Reservedshould not be used. For more information about pinouts, see the
CAM-M8 Hardware Integration Manual [1].
2.2 Pin name changes
Selected pin names have been updated to agree with a common naming convention across u-blox
modules. The pins have not changed their operation and are the same physical hardware but with
updated names. The table below lists the pins that have changed name along with their old and new
names.
No Previous Name New name
30 ANT_ON LNA_EN
16 ANT RF_OUT
20 DSEL D_SEL
3 SDA
SPI CS_N
SDA /
SPI CS_N
6 SCL
SPI CLK
SCL /
SPI CLK
25 TXD
SPI MISO
TXD /
SPI MISO
26 RXD
SPI MOSI
RXD /
SPI MOSI
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3 Configuration management
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.
For more information about configuration management, see the u-blox 8 / u-blox M8 Receiver
Description Including Protocol Specification [2].
3.1 Interface Selection (D_SEL)
At startup, pin 20 (D_SEL) determines which data interfaces are used for communication. If D_SEL
is set high or left open, UART and DDC become available. If D_SEL is set low, i.e. connected to ground,
the CAM-M8Q/C modules can communicate to a host via SPI.
PIN # D_SEL = ”1”
(left open)
D_SEL = ”0”
(connected to GND)
25 TXD SPI MISO
26 RXD SPI MOSI
6 SCL SPI CLK
3 SDA SPI CS_N
Table 6: Data interface selection by D_SEL
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4 Electrical specification
The limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134).
Stress above one or more of the limiting values may cause permanent damage to the device.
These are stress ratings only, and operation of the device at these or at any other conditions
above those given in the Characteristics sections of the specification is not implied. Exposure to
these limits for extended periods may affect device reliability.
Where application information is given, it is advisory only and does not form part of the
specification. For more information, see the CAM-M8 Hardware Integration Manual [1]
.
4.1 Absolute maximum rating
Parameter Symbol Condition Min Max Units
Power supply voltage VCC, VCC_IO 0.5 3.6 V
Backup battery voltage V_BCKP 0.5 3.6 V
Input pin voltage Vidig Input voltage on Configurable
Inputs, RESET_N if VCC_IO <
3.1V
Input voltage on Configurable
Inputs, RESET_N if VCC_IO >
3.1V
0.5
-0.5
VCC_IO+0.5
3.6
V
V
DC current trough any digital I/O
pin
(except supplies)
Ipin 10 mA
Input power at RF_IN Prfin source impedance = 50 ,
continuous wave
15 dBm
Storage temperature Tstg 40 85 °C
Table 7: Absolute maximum ratings of CAM-M8Q/C
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.
4.2 Operating conditions
All specifications are at an ambient temperature of +25 °C. Extreme operating temperatures can
significantly impact specification values. Applications operating near the temperature limits
should be tested to ensure the specification.
Parameter Symbol Module Min Typ Max Units Condition
Power supply voltage VCC, VCC_IO CAM-M8C 1.65 3.0 3.6 V
CAM-M8Q 2.7 3.0 3.6 V
Backup battery voltage V_BCKP All 1.4 3.6 V
Backup battery current I_BCKP CAM-M8Q 15 µA V_BCKP = 3.0 V,
VCC = 0 V
CAM-M8C 100 µA V_BCKP = 3.0 V,
VCC = 0 V
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Parameter Symbol Module Min Typ Max Units Condition
SW backup current I_SWBCKP CAM-M8Q 30 µA VCC = 3.0 V
CAM-M8C 105 µA VCC = 3.0 V
Input pin voltage range 10 Vin All -0.5 VCC_IO+0.5 V
Digital IO Pin Low level input voltage Vil All 0 0.2*VCC_IO V
Digital IO Pin High level input voltage Vih All 0.7*VCC_IO VCC_IO+0.5 V
Digital IO Pin Low level output voltage Vol All 0.4 V Iol = 4 mA
Digital IO Pin High level output
voltage
Voh All VCC_IO - 0.4 V Ioh = 4 mA
Pull-up resistor for RESET_N
(Internal)
Rpu All 11 k
Receiver Chain Noise Figure 11 NFtot All 3.5 dB
Operating temperature Topr All 40 85 °C
Table 8: Operating conditions
Operation beyond the specified operating conditions can affect device reliability.
4.3 Indicative power requirements
Table 9 lists examples of the total system supply current for a possible application.
The values in Table 9 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, the number of SVs tracked, signal strength,
type of start as well as time, duration and conditions of test.
Parameter Symbol Module Typ
GPS / QZSS / SBAS & GLONASS
Typ
GPS / QZSS / SBAS
Max Units
Max. supply current 12 Iccp All 71 mA
Average supply current 13, 14 Icc Acquisition 15 CAM-M8Q 30 26 mA
CAM-M8C 32 26 mA
Icc Tracking
(Continuous mode)
CAM-M8Q 28 23 mA
CAM-M8C 28 23 mA
Icc Tracking
(Power Save mode /
1 Hz)
CAM-M8Q 10.9 10.4 mA
CAM-M8C 10.1 9.6 mA
Table 9: Indicative power requirements at 3.0 V
For more information about power requirements, see the CAM-M8 Hardware Integration Manual
[1].
For more information on how to noticeably reduce current consumption, see the Power
Management Application Note [5]).
10 If VCC or VCC_IO is 0V there should not be any voltage applied to any I/O (Including RESET_N)
11 Only valid for the GPS band
12 Use this figure to dimension maximum current capability of power supply. Measurement of this parameter with 1 Hz
bandwidth.
13 Use this figure to determine required battery capacity.
14 Simulated GNSS constellation using power lever of 130 dBm. VCC = 3.0 V
15 Average current from start-up until the first fix.
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5 Mechanical specifications
Figure 4: Dimensions (units: mm)
For information about the paste mask and footprint, see the CAM-M8 Hardware Integration Manual [1].
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6 Reliability tests and approvals
6.1 Reliability tests
The CAM-M8Q/C concurrent GNSS antenna modules are based on AEC-Q100 qualified GNSS
chips.
Tests for product qualifications are according to ISO 16750 "Road vehicles Environmental
conditions and testing for electrical and electronic equipment”, and appropriate standards.
6.2 Approvals
The CAM-M8Q and CAM-M8C modules comply with the Directives 2011/65/EU
and 2015/863/EU of the European Parliament and the Council on the
Restriction of Use of certain Hazardous Substances (RoHS).
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7 Product handling & soldering
7.1 Packaging
The CAM-M8Q/C modules are delivered as hermetically sealed, reeled tapes in order to enable
efficient production, production lot set-up and tear-down. For more information, see the u-blox
Package Information Guide [3].
7.2 Reels
The CAM-M8Q/C GPS modules are deliverable in quantities of 500 pieces on a reel. The CAM-M8Q/C
modules are shipped on reel type B, as specified in the u-blox Package Information Guide [3].
7.3 Tapes
Figure 5 shows the position and orientation of CAM-M8 series modules as they are delivered on tape.
The dimensions of the tape are specified in Figure 6.
Figure 5: Tape and module orientation
Figure 6: Dimensions and orientation for CAM-M8Q/C modules on tape
7.4 Shipment, storage and handling
For important information about shipment, storage and handling, see the u-blox Package Information
Guide [3].
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7.4.1 Moisture Sensitivity Levels
The Moisture Sensitivity Level (MSL) relates to the packaging and handling precautions required.
CAM-M8Q/C modules are rated at MSL level 4.
For MSL standard see IPC/JEDEC J-STD-020. Download available at www.jedec.org.
For more information regarding MSL, see the u-blox Package Information Guide [3].
7.4.2 Reflow soldering
Reflow profiles are to be selected according to u-blox recommendations (see the CAM-M8 Hardware
Integration Manual [1]).
7.4.3 Antenna ageing
Antenna electrode metallization is unprotected silver and will tarnish during storage due to sulfuric
compounds present in the atmosphere. Elevated temperature and humidity will accelerate this
process. Human skin contact, wool etc. will also cause tarnishing. This has no effect on the electrical
performance of the antenna. u-blox accepts no warranty claims for tarnished products due to this
normal and to be expected process.
7.4.4 ESD handling precautions
CAM-M8Q/C modules are Electrostatic Sensitive Devices (ESD). Observe handling precautions!
Failure to observe these precautions can result in severe damage to the GNSS receiver!
GNSS receivers are Electrostatic Sensitive Devices (ESD) and require special precautions when
handling. Exercise care when handling patch antennas, due to the risk of electrostatic charges. In
addition to standard ESD safety practices, take the following measures 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 ~10 pF, coax
cable ~50-80 pF/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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8 Default messages
Interface Settings
UART Output
9600 Baud, 8 bits, no parity bit, 1 stop bit
Configured to transmit both NMEA and UBX protocols, but no UBX messages and only the
following NMEA have been activated at start-up:
GGA, GLL, GSA, GSV, RMC, VTG, TXT
UART Input 9600 Baud, 8 bits, no parity bit, 1 stop bit, Autobauding disabled
Automatically accepts following protocols without need of explicit configuration:
UBX, NMEA, RTCM
The GPS receiver supports interleaved UBX and NMEA messages.
DDC Fully compatible with the I2C industry standard, available for communication with an external host
CPU or u-blox cellular modules, operated in slave mode only.
NMEA and UBX are enabled as input messages, only NMEA as output messages
Maximum bit rate 400 kb/s.
TIMEPULSE
(1 Hz Nav)
1 pulse per second, synchronized at rising edge, pulse length 100 ms
Table 10: Default messages
Refer to the u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [2] for
information about further settings.
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9 Labeling and ordering information
9.1 Product labeling
The labeling of u-blox CAM-M8Q/C GNSS antenna modules include important product information.
The location of the product type number is shown in Figure 7.
Figure 7: Location of product type number on u-blox CAM-M8Q/C module label
9.2 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 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 11 below details these three different formats:
Format Structure
Product Name PPP-TGV
Ordering Code PPP-TGV-N
Type Number PPP-TGV-N-XX
Table 11: Product code formats
The parts of the product code are explained in Table 12.
Code Meaning Example
PPP Product Family CAM
TG Technology & Generation M8 = u-blox M8
V Variant Function set (A-Z), T = Timing, R = DR, etc.
N Option / Quality Grade Describes standardized functional element or quality grade
0 = Default variant, A = Automotive
XX Product Detail Describes product details or options such as hardware and
software revision, cable length, etc.
Table 12: Part identification code
9.3 Ordering codes
Ordering No. Product
CAM-M8Q-0 u-blox M8 Concurrent GNSS LCC Antenna Module, TCXO, SAW, LNA, ROM, 9.6 x 14.0 mm, 500
pcs/reel
CAM-M8C-0 u-blox M8 Concurrent GNSS LCC Antenna Module, Crystal, SAW, LNA, ROM, 9.6 x 14.0 mm, 500
pcs/reel
Table 13: Product ordering codes for professional grade module
Product changes affecting form, fit or function are documented by u-blox. For a list of Product
Change Notifications (PCNs), see our website.
CAM-M8 - Data Sheet
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Appendix
A Glossary
Abbreviation Definition
AEC Automotive Electronics Council
BBR Battery Backed RAM
DDC Display Data Channel
EGNOS European Geostationary Navigation Overlay Service
ESD Electrostatic Sensitive Device*
FOC Full Operational Capability
GAGAN GPS Aided GEO Augmented Navigation
GLONASS GLObal Navigation Satellite System (Russian)
GNSS Global Navigation Satellite System
GPIO General Purpose Input/Output
GPS Global Positioning System
IMES Indoor MEssaging System
I2C Inter-Integrated Circuit
IEC International Electrotechnical Commission
ISO International Organization for Standardization
LCC Leadless Chip Carrier
LCS LoCation Services (protocol)
LNA Low Noise Amplifier
MSAS MTSAT Satellite Augmentation System
MSL Moisture Sensitivity Level
NMEA National Marine Electronics Association
PPP Point-to-Point Protocol* / Precise Point Positioning*
PCB Printed Circuit Board
PCN Product Change Notification
PPS Pulse Per Second
QZSS Quasi-Zenith Satellite System
RLM Return Link Message
RRLP Radio Resource LCS Protocol
RTC Real Time Clock
RTCM Radio Technical Commission for Maritime Services
SAW Surface Acoustic Wave
SBAS Satellite-Based Augmentation System
SCL Serial Clock
SMD Solder Mask Defined
SUPL Secure User Plane Location
TCXO Temperature-Compensated Crystal Oscillator
TTFF Time-To-First-Fix
UART Universal Asynchronous Receiver/Transmitter
UTC Coordinated Universal Time
WAAS Wide Area Augmentation System
Table 14: Explanation of the abbreviations and terms used
CAM-M8 - Data Sheet
UBX-15031574 - R04 Related documents Page 30 of 31
Production Information
Related documents
[1] CAM-M8 (FW3) Hardware Integration Manual, Doc. No. UBX-15030063
[2] u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification (Public version), Doc.
No. UBX-13003221
[3] u-blox Package Information Guide, Doc. No. UBX-14001652
[4] RTCM 10402.3 Recommended Standards for Differential GNSS, Ver. 2.3, RTCM Aug. 20, 2001
[5] Power Management Application Note, Doc. No. UBX-13005162
[6] Radio Resource LCS Protocol (RRLP), (3GPP TS 44.031 version 11.0.0 Release 11)
For regular updates to u-blox documentation and to receive product change notifications, register
on our homepage (www.u-blox.com).
Revision history
Revision Date Name Comments
R01 15-Sep-2016 ghun Advance Information
R02 31-Oct-2016 ghun Production Information
R03 12-Feb-2018 rmak Updated Sections 1.6.3 and 4.1, and legal statement in cover page and
added Documentation feedback e-mail address in contacts page.
R04 28-Jan-2019 mbab, rmak Reformat, updated Section 6.2 (RoHS statement).
CAM-M8 - Data Sheet
UBX-15031574 - R04 Contact Page 31 of 31
Production Information
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: info_us@u-blox.com
Regional Office West Coast:
Phone: +1 408 573 3640
E-mail: info_us@u-blox.com
Technical Support:
Phone: +1 703 483 3185
E-mail: support@u-blox.com
Headquarters
Europe, Middle East, Africa
u-blox AG
Phone: +41 44 722 74 44
E-mail: info@u-blox.com
Support: support@u-blox.com
Asia, Australia, Pacific
u-blox Singapore Pte. Ltd.
Phone: +65 6734 3811
E-mail: info_ap@u-blox.com
Support: support_ap@u-blox.com
Regional Office Australia:
Phone: +61 2 8448 2016
E-mail: info_anz@u-blox.com
Support: support_ap@u-blox.com
Regional Office China (Beijing):
Phone: +86 10 68 133 545
E-mail: info_cn@u-blox.com
Support: support_cn@u-blox.com
Regional Office China (Chongqing):
Phone: +86 23 6815 1588
E-mail: info_cn@u-blox.com
Support: support_cn@u-blox.com
Regional Office China (Shanghai):
Phone: +86 21 6090 4832
E-mail: info_cn@u-blox.com
Support: support_cn@u-blox.com
Regional Office China (Shenzhen):
Phone: +86 755 8627 1083
E-mail: info_cn@u-blox.com
Support: support_cn@u-blox.com
Regional Office India:
Phone: +91 80 405 092 00
E-mail: info_in@u-blox.com
Support: support_in@u-blox.com
Regional Office Japan (Osaka):
Phone: +81 6 6941 3660
E-mail: info_jp@u-blox.com
Support: support_jp@u-blox.com
Regional Office Japan (Tokyo):
Phone: +81 3 5775 3850
E-mail: info_jp@u-blox.com
Support: support_jp@u-blox.com
Regional Office Korea:
Phone: +82 2 542 0861
E-mail: info_kr@u-blox.com
Support: support_kr@u-blox.com
Regional Office Taiwan:
Phone: +886 2 2657 1090
E-mail: info_tw@u-blox.com
Support: support_tw@u-blox.com

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