Related Manuals for u-blox NEO-8Q Series
Summary of Contents for u-blox NEO-8Q Series
- Page 1 NEO-8Q / NEO-M8 u-blox 8 / M8 GNSS modules Hardware Integration Manual Abstract This document describes the features and specifications of u-blox NEO-8Q and NEO-M8 series modules. www.u-blox.com UBX-15029985 - R04...
- Page 2 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.
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Page 3: Preface
Preface u-blox Technical Documentation As part of our commitment to customer support, u-blox maintains an extensive volume of technical documentation for our products. In addition to our product-specific technical data sheets, the following manuals are available to assist u-blox customers in product design and development. -
Page 4: Table Of Contents
2.4.2 Active antenna design..........................15 Migration to u-blox 8 / M8 modules ..................17 Migrating u-blox 7 designs to NEO-8Q and NEO-M8 series modules ..............17 Hardware migration NEO-6 -> NEO-8Q and NEO-M8 series ................. 17 Software migration ............................. 18 Product handling........................ - Page 5 NEO-8Q / NEO-M8 - Hardware Integration Manual Appendix ............................. 28 Glossary ..........................28 Recommended parts ......................29 Related documents ........................30 Revision history ........................... 30 Contact ............................31 UBX-15029985 - R04 Production Information Contents Page 5 of 31...
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Page 6: Hardware Description
& place and reflow-soldering equipment for cost-efficient, high-volume production enabling short time-to-market. For product features, see the corresponding product data sheet in the Related documents. To determine which u-blox product best meets your needs, see the product selector tables on the u-blox website www.u-blox.com. 1.2 Configuration The configuration settings can be modified using UBX protocol configuration messages, see the u-blox 8 / u-blox M8 Receiver Description including Protocol Specification [4]. -
Page 7: Vdd_Usb: Usb Interface Power Supply
UART. The USB_DP integrates a pull-up resistor to signal a full-speed device to the host. The VDD_USB pin supplies the USB interface. u-blox provides Microsoft® certified USB drivers for Windows Vista, Windows 7, Windows 8 and Windows 10 operating systems. These drivers are available at our website at www.u-blox.com... -
Page 8: Display Data Channel (Ddc)
C industry standard. DDC pins SDA and SCL have internal pull-up resistors. For more information about the DDC implementation, see the u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [4]. For bandwidth information, see the corresponding product data sheet in the Related documents. -
Page 9: I/O Pins
On NEO-8Q and NEO-M8 series modules, a configurable time pulse signal is available. By default, the time pulse signal is configured to one pulse per second. For more information, see the u-blox 8 / u-blox M8 Receiver UBX-15029985 - R04... -
Page 10: Timepulse2
1.5.6 TIMEPULSE2 On the NEO-M8T module, a configurable TIMEPULSE2 signal can be programmed on TP2/SAFEBOOT_N. For more information, see the u-blox 8 / u-blox M8 Receiver Description including Protocol Specification [4] The TIMEPULSE2 output must not be held LOW during start-up. -
Page 11: Design
NEO-8Q / NEO-M8 - Hardware Integration Manual 2 Design 2.1 Pin description Function Description Remarks Power Supply Voltage Provide clean and stable supply. 10,12,13 Ground Assure a good GND connection to all GND pins of the module, , 24 preferably with a large ground plane. V_BCKP Backup Supply It is recommended to connect a backup supply voltage to V_BCKP in... -
Page 12: Pin Name Changes
NEO-8Q / NEO-M8 - Hardware Integration Manual 2.1.1 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. -
Page 13: Minimal Design
NEO-8Q / NEO-M8 - Hardware Integration Manual 2.2 Minimal design This is a minimal design for a NEO-8Q and NEO-M8 series GNSS receiver. Figure 4: NEO-8Q / NEO-M8 passive antenna design NEO-M8M can have a passive antenna, but for optimal operation requires an external SAW and LNA, see Figure 7. -
Page 14: Antenna
NEO-8Q / NEO-M8 - Hardware Integration Manual 2.4 Antenna 2.4.1 Antenna design with passive antenna A design using a passive antenna requires more attention to the layout of the RF section. Typically, a passive antenna is located near electronic components; therefore, care should be taken to reduce electrical noise that may interfere with the antenna performance. -
Page 15: Active Antenna Design
NEO-8Q / NEO-M8 - Hardware Integration Manual Figure 8: NEO-M8N / NEO-M8Q / NEO-M8T / NEO-8Q module design with passive antenna and an external LNA The LNA_EN pin (LNA enable) can be used to turn on and off an optional external LNA. The VCC_RF output can be used to supply the LNA with a filtered supply voltage. - Page 16 Active antenna design powered from external supply Figure 10: Active antenna design, direct external supply The circuit shown in Figure 10 works with all u-blox M8 modules, and also with modules without VCC_RF output. UBX-15029985 - R04 Production Information...
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Page 17: Migration To U-Blox 8 / M8 Modules
If using BeiDou, check the bandwidth of the external RF components and the antenna. For information about power consumption, see the corresponding product data sheet in the Related documents. It is highly advisable that customers consider a design review with the u-blox support team to ensure the compatibility of key functionalities. -
Page 18: Software Migration
Make sure that the RF path (antenna and filtering) matches that of the GNSS constellations used. 3.3 Software migration For an overall description of the module software operation, see the u-blox 8 / u-blox M8 Receiver Description including Protocol Specification [4] For migration, see the u-blox M8 FW SPG3.01 Migration Guide [9]. -
Page 19: Product Handling
NEO-8Q / NEO-M8 - Hardware Integration Manual 4 Product handling 4.1 Packaging, shipping, storage and moisture preconditioning For information pertaining to reels and tapes, Moisture Sensitivity levels (MSL), shipment and storage information, as well as drying for preconditioning see the corresponding product data sheet in the Related documents. - Page 20 Temperature fall rate: max 4 °C/s To avoid falling off, the u-blox module should be placed on the topside of the motherboard during soldering. The final soldering temperature chosen at the factory depends on additional external factors like choice of soldering paste, size, thickness and properties of the base board, etc.
- Page 21 Rework The u-blox module can be unsoldered from the baseboard using a hot air gun. When using a hot air gun for unsoldering the module, a maximum of one reflow cycle is allowed. In general, we do not recommend using a hot air gun because this is an uncontrolled process and might damage the module.
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Page 22: Eos/Esd/Emi Precautions
EMI covers is done at the customer’s own risk. The numerous ground pins should be sufficient to provide optimum immunity to interferences and noise. u-blox makes no warranty for damages to the modules caused by soldering metal cables or any other forms of metal strips directly onto the EMI covers. - Page 23 NEO-8Q / NEO-M8 - Hardware Integration Manual Electrostatic discharge (ESD) Electrostatic discharge (ESD) is the sudden and momentary electric current that flows between two objects at different electrical potentials caused by direct contact or induced by an electrostatic field. The term is usually used in the electronics and other industries to describe momentary unwanted currents that may cause damage to electronic equipment.
- Page 24 NEO-8Q / NEO-M8 - Hardware Integration Manual Most defects caused by ESD can be prevented by following strict ESD protection rules for production and handling. When implementing passive antenna patches or external antenna connection points, then additional ESD measures can also avoid failures in the field as shown in Figure 12. Small passive antennas (<2 dBic and Passive antennas (>2 dBic or performance Active antennas...
- Page 25 NEO-8Q / NEO-M8 - Hardware Integration Manual EOS protection measures For designs with GNSS positioning modules and wireless (e.g. cellular) transceivers in close proximity, ensure sufficient isolation between the wireless and GNSS antennas. If wireless power output causes the specified maximum power input at the GNSS RF_IN to be exceeded, employ EOS protection measures to prevent overstress damage.
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Page 26: Applications With Cellular Modules
Related documents for the absolute maximum power input at the GNSS receiver. See the GPS Implementation and Aiding Features in u-blox wireless modules [8]. Isolation between GNSS and cellular antenna In a handheld type design, an isolation of approximately 20 dB can be reached with careful placement of the antennas. - Page 27 (see Figure 17). Figure 17: Measures against out-band interference For design-in recommendations in combination to cellular operation see the Appendix See the GPS Implementation and Aiding Features in u-blox wireless modules [8] UBX-15029985 - R04 Production Information Product handling...
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Page 28: Appendix
NEO-8Q / NEO-M8 - Hardware Integration Manual Appendix A Glossary Abbreviation Definition ANSI American National Standards Institute BeiDou Chinese navigation satellite system CDMA Code Division Multiple Access Electromagnetic compatibility Electromagnetic interference Electrical Overstress Electrostatic Protective Area Electrostatic discharge Galileo European navigation system GLONASS Russian satellite system Ground... -
Page 29: B Recommended Parts
NEO-8Q / NEO-M8 - Hardware Integration Manual B Recommended parts Recommended parts are selected on data sheet basis only. Other components may also be used. Part Manufacturer Part ID Remarks Parameters to consider Diode ESD9R3.3ST5G Standoff Voltage>3.3 V Low Capacitance < 0.5 pF Semiconductor ESD9L3.3ST5G Standoff Voltage>3.3 V... -
Page 30: Related Documents
GPS Implementation and Aiding Features in u-blox wireless modules, Docu. No. GSM.G1-CS-09007 u-blox M8 FW SPG3.01 Migration Guide, Docu. No. UBX-15028330 For regular updates to u-blox documentation and to receive product change notifications, register on our homepage (http://www.u-blox.com) Revision history... -
Page 31: Contact
NEO-8Q / NEO-M8 - Hardware Integration Manual Contact For complete contact information, visit us at www.u-blox.com u-blox Offices North, Central and South America Headquarters Asia, Australia, Pacific Europe, Middle East, Africa u-blox America, Inc. u-blox Singapore Pte. Ltd. u-blox AG...