Ublox MAX-M5Q Hardware Integration Manual
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Ublox MAX-M5Q Hardware Integration Manual

Ublox MAX-M5Q Hardware Integration Manual

Gps/gnss modules
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MAX-M5Q
GPS/GNSS modules
Hardware Integration Manual
Abstract
This document describes the features and specifications of the
MAX-M5Q in MAX form factor with Mediatek hybrid/parallel
GPS/GGLONASS receiver. This stand-alone module is compact and
easy-to-integrate, and provides an easy upgrade transition to the
future MAX-8 modules.
www.u-blox.com

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  • Page 1 Hardware Integration Manual Abstract This document describes the features and specifications of the MAX-M5Q in MAX form factor with Mediatek hybrid/parallel GPS/GGLONASS receiver. This stand-alone module is compact and easy-to-integrate, and provides an easy upgrade transition to the future MAX-8 modules.
  • Page 2 Document Information - Hardware Integration Manual Document Information Title MAX-M5Q Subtitle GPS/GNSS modules Document type Hardware Integration Manual Document number FTX-HW-13008 Document status Objective Specification Document status information Objective This document contains target values. Revised and supplementary data will be published Specification later.

  • Page 3: Preface

    GPS system functionalities and technology. • MAX-M5Q Receiver Description including Protocol Specification, Docu. No FTX-SW-13001 [2]: Messages, configuration and functionalities of the MAX-M5Q software releases and positioning modules are explained in this document. •...
  • Page 4 MAX-M5Q - Hardware Integration Manual Technical Support Worldwide Web Our website (www.u-blox.com) is a rich pool of information. Product information, technical documents and helpful FAQ can be accessed 24h a day. By E-mail If you have technical problems or cannot find the required information in the provided documents, contact the nearest of the Technical Support offices by email.

  • Page 5: Table Of Contents

    MAX-M5Q - Hardware Integration Manual Contents Preface ..........................3 Contents ..........................5 Quick reference ......................8 Hardware description ....................8 Overview .............................. 8 2.1.1 MAX-M5Q ............................ 8 Architecture ............................8 2.2.1 MAX-M5Q Architecture ........................ 8 Power management operating modes ....................9 2.3.1...
  • Page 6 4.3.3 Recommended GPS & GLONASS passive chip antenna ..............26 Migration ........................27 Migrating from u-blox 7 designs to a MAX-M5Q module ..............27 5.1.1 Software compatibility ......................... 27 Forward compatibility from MAX-M5Q designs to a MAX-8x module ..........27 5.2.1...
  • Page 7 MAX-M5Q - Hardware Integration Manual System sensitivity test ......................... 37 7.3.1 Guidelines for sensitivity tests ...................... 37 7.3.2 ‘Go/No go’ tests for integrated devices ..................37 Appendix .......................... 38 A Abbreviations ......................38 Related documents......................39 Revision history ........................ 39 Contact ..........................

  • Page 8: Quick Reference

    2.1 Overview 2.1.1 MAX-M5Q The u-blox MAX-M5Q is an OEM GNSS receiver module based on the Mediatek MT3333 chip that supports All- in-One GNSS hybrid navigation. The u-blox MAX-M5Q receiver provides extremely low power and very fast TTFF together with weak signal acquisition and tracking capability to meet even the most stringent performance expectations in hybrid navigation, using signals from both GPS + GLONASS GNSS systems.

  • Page 9: Power Management Operating Modes

    The ephemeris for each satellite in view is valid 2.3.2 Power Save modes For power sensitive applications, the MAX-M5Q module also supports low-power operating modes for reduced power consumption by using the embedded power switch. For more information about the power management command, see [2].

  • Page 10: Backup State

    $PMTK001,225,3*35. The module can exit AlwaysLocate™ mode by sending the command $PMTK225,0*2B just after the module wakes up from a previous sleep cycle. The module can control the embedded VCC power switch autonomously only after the MAX-M5Q is set to Periodic or to AlwaysLocate™ mode by an NMEA command.

  • Page 11: Configuration

    (see datasheet for specification). When switching from backup mode to normal operation or at startup, MAX-M5Q modules must charge the internal capacitors in the core domain. In certain situations, this can result in a significant current draw.

  • Page 12: Interfaces

    2.6 Interfaces 2.6.1 UART The MAX-M5Q positioning module includes a Universal Asynchronous Receiver Transmitter (UART) serial interface RxD/TxD that supports configurable baud rates. For information about the supported baud rates, see the MAX-M5Q Receiver Description including Protocol Specification, Docu. No FTX-SW-13001 [2].

  • Page 13: Design

    Placing a filter or other source of resistance at VCC can create significantly longer acquisition times. For ground plane design, see section 3.4.3. Ensure that all power supplies are within the specified range. (See MAX-M5Q Data Sheet, Docu. No FTX-  HW-13003 [1]) Compare the peak supply current consumption of your MAX-M5Q module with the specification of the ...

  • Page 14: Layout Checklist

    GPS for design in combination with GSM or other radio, then check sections 6.3.5 to 6.3.7. For more information dealing with interference issues, see the GPS Antenna Application Note [3]. 3.2 Design considerations for minimal designs For a minimal design with the MAX-M5Q GPS/GNSS module, the following functions and pins need consideration: •...

  • Page 15: Minimal Design

    MAX-M5Q - Hardware Integration Manual 3.2.1 Minimal design This is a minimal setup for a GPS/GNSS receiver: Figure 3: MAX-M5Q passive antenna design For information on increasing immunity to jammers such as GSM, see section 6.3.7. Function Description Remarks Power Supply Voltage Provide clean and stable supply.

  • Page 16: Layout

    3.3.1 Footprint and paste mask Figure 4 describes the footprint and provides recommendations for the paste mask for MAX-M5Q LCC modules. These are recommendations only and not specifications. Note that the Copper and Solder masks have the same size and position.

  • Page 17: Antenna Connection And Ground Plane Design

    MAX-M5Q - Hardware Integration Manual 'emitting' RF & heat RF Part circuits 'emitting' Non 'emitting' circuits circuits Digital Part RF& heat 'emitting' circuits Digital & Analog circuits Digital & Analog circuits Figure 6: Placement (for exact pin orientation, see data sheet) 4.1.2 Antenna connection and ground plane design...

  • Page 18: General Design Recommendations

    MAX-M5Q - Hardware Integration Manual As seen in Figure 7, an isolated ground area exists around and below the RF connection. This part of the circuit MUST be kept as far from potential noise sources as possible. Make certain that no signal lines cross, and that no signal trace vias appear at the PCB surface within the area of the red rectangle.

  • Page 19: Antenna Micro Strip

    MAX-M5Q - Hardware Integration Manual 4.1.4 Antenna micro strip There are many ways to design wave-guides on printed circuit boards. A common factor to all is that calculation of the electrical parameters is not straightforward. Freeware tools like AppCAD from Agilent or TXLine from Applied Wave Research, Inc.

  • Page 20: Antenna And Antenna Supervision

    MAX-M5Q - Hardware Integration Manual 4.2 Antenna and Antenna supervision 4.2.1 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 21: Active Antenna Design Not Using Antenna Supervisor

    GPS system power consumption budget with additional 5 to 20 mA typically. If the supply voltage of the MAX-M5Q receiver matches the supply voltage of the antenna (e.g. 3.0 V), use the filtered supply voltage VCC_RF output to supply the antenna. See section 4.2.2.1.
  • Page 22 MAX-M5Q - Hardware Integration Manual 4.2.2.3 External active antenna supervisor using customer uP Figure 15: External active antenna supervisor using ANT_ON       • bias Equation 1: Calculation of threshold current for open circuit detection For recommended parts, see section 4.3.

  • Page 23: Design With Glonass / Gps Active Antenna

    MAX-M5Q - Hardware Integration Manual Figure 16: External active antenna control For recommended parts, see section 4.3. 4.2.3 Design with GLONASS / GPS active antenna The Russian GLONASS satellite system is an alternative system to the US-based Global Positioning System (GPS).

  • Page 24: Design With Glonass / Gps Passive Antenna

    MAX-M5Q - Hardware Integration Manual 4.2.4 Design with GLONASS / GPS passive antenna In general, GPS patch antennas only receive GPS signals well. A typical return plot (S11 measurement) shows that the GLONASS signal is highly attenuated. (See Figure 18) u-blox 7 modules supporting GLONASS have a GPS &...

  • Page 25: Recommended Parts

    MAX-M5Q - Hardware Integration Manual 4.3 Recommended parts u-blox has tested and recommends the parts listed in Table 2. Other untested components may also be used. Manufacturer Part ID Remarks Parameters to consider Diode ON Semiconductor ESD9R3.3ST5G Standoff Voltage>3.3 V Low Capacitance <...

  • Page 26: Recommended Gps & Glonass Active Patch Antenna (A1)

    MAX-M5Q - Hardware Integration Manual 4.3.1 Recommended GPS & GLONASS active patch antenna (A1) Manufacturer Order No. Comments Taoglas (www.taoglas.com) AA.160.301111 36*36*4 mm, 3-5V 30mA Taoglas (www.taoglas.com) AA.161.301111 36*36*3 mm, 1.8 to 5.5V / 10mA at 3V Additional antenna Manufacturer: INPAQ, Hirschmann, Allis Communications, 2J, Tallysman Wireless Table 3: Recommend GPS &...

  • Page 27: Migration

    5.1.1 Software compatibility No u-blox binary protocol, configuration etc. For a typical NMEA interface usage the MAX-M5Q can be considered as compatible to MAX-7x Review the MAX-M5Q Receiver Description including Protocol Specification, Docu. No FTX-SW-13001 [2] for details. 5.2 Forward compatibility from MAX-M5Q designs to a MAX-8x module Due to differences between Mediatek and u-blox chips, 100% compatibility is not possible.

  • Page 28: Product Handling

    6.1 Packaging, shipping, storage and moisture preconditioning For information pertaining to reels and tapes, Moisture Sensitivity levels (MSD), shipment and storage information, as well as drying for preconditioning see MAX-M5Q Data Sheet, Docu. No FTX-HW-13003 [1]. 6.1.1 Population of Modules When populating our modules make sure that the pick and place machine is aligned to the copper pins of the module and not on the module edge.

  • Page 29: Optical Inspection

    MAX-M5Q - Hardware Integration Manual Cooling phase A controlled cooling avoids negative metallurgical effects (solder becomes more brittle) of the solder and possible mechanical tensions in the products. Controlled cooling helps to achieve bright solder fillets with a good shape and low contact angle.

  • Page 30: Repeated Reflow Soldering

    MAX-M5Q - Hardware Integration Manual 6.2.5 Repeated reflow soldering Only single reflow soldering processes are recommended for boards populated with u-blox 7 modules. u-blox 7 modules should not be submitted to two reflow cycles on a board populated with components on both sides in order to avoid upside down orientation during the second reflow cycle.

  • Page 31: Grounding Metal Covers

    MAX-M5Q - Hardware Integration Manual 6.2.11 Grounding metal covers Attempts to improve grounding by soldering ground cables, wick or other forms of metal strips directly onto the 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.

  • Page 32: Esd Protection Measures

    MAX-M5Q - Hardware Integration Manual • 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, …) •...

  • Page 33: Electrical Overstress (Eos)

    MAX-M5Q - Hardware Integration Manual 6.3.4 Electrical Overstress (EOS) Electrical Overstress (EOS) usually describes situations when the maximum input power exceeds the maximum specified ratings. EOS failure can happen if RF emitters are close to a GPS/GNSS receiver or its antenna. EOS causes damage to the chip structures.

  • Page 34: Applications With Wireless Modules Leon / Lisa

    MAX-M5Q - Hardware Integration Manual 6.3.7 Applications with wireless modules LEON / LISA GSM uses power levels up to 2 W (+33 dBm). Consult the Data Sheet for the absolute maximum power input at the GPS/GNSS receiver. 6.3.7.1 Isolation between GPS and GSM antenna In a handheld type design, an isolation of approximately 20 dB can be reached with careful placement of the antennas.
  • Page 35 MAX-M5Q - Hardware Integration Manual 6.3.7.4 Out-band jamming Out-band jamming is caused by signal frequencies that are different from the GPS carrier (see Figure 25). The main sources are wireless communication systems such as GSM, CDMA, WCDMA, Wi-Fi, BT, etc.

  • Page 36: Product Testing

    MAX-M5Q - Hardware Integration Manual 7 Product testing 7.1 u-blox in-series production test u-blox focuses on high quality for its products. To achieve a high standard it is our philosophy to supply fully tested units. Therefore, at the end of the production process, every unit is tested. Defective units are analyzed in detail to improve the production quality.

  • Page 37: System Sensitivity Test

    MAX-M5Q - Hardware Integration Manual 7.3 System sensitivity test The best way to test the sensitivity of a GPS/GNSS device is with the use of a 1-channel GPS simulator. It assures reliable and constant signals at every measurement. Figure 29: 1-channel GPS simulator u-blox recommends the following Single-Channel GPS Simulator: •...

  • Page 38: Appendix

    MAX-M5Q - Hardware Integration Manual Appendix A Abbreviations Abbreviation Definition ANSI American National Standards Institute CDMA Code Division Multiple Access Electromagnetic compatibility Electromagnetic interference Electrical Overstress Electrostatic Protective Area Electrostatic discharge GLONASS Russian satellite system Ground GNSS Global Navigation Satellite System...

  • Page 39: Related Documents

    MAX-M5Q - Hardware Integration Manual Related documents MAX-M5Q Data Sheet, Docu. No FTX-HW-13003 MAX-M5Q Receiver Description including Protocol Specification, Docu. No FTX-SW-13001 GPS Antenna Application Note, Docu. No GPS-X-08014 GPS Compendium, Doc No GPS-X-02007 All these documents are available on our homepage (http://www.u-blox.com).

  • Page 40: Contact

    MAX-M5Q - Hardware Integration Manual Contact For complete contact information, visit us at www.u-blox.com u-blox Offices North, Central and South Headquarters Asia, Australia, Pacific America Europe, Middle East, Africa u-blox Singapore Pte. Ltd. Phone: +65 6734 3811 u-blox America, Inc.

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