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Ublox NEO-6 Integration Manual

U-blox 6 glonass, gps & qzss modules
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LEA-6 / NEO-6 / MAX-6
u-blox 6 GLONASS, GPS & QZSS modules
Hardware Integration Manual
Abstract
This document describes the features and specifications of the cost
effective and high-performance LEA-6, NEO-6 and MAX-6 GPS and
GPS/GLONASS/QZSS modules featuring the u-blox 6 positioning
engine.
These compact, easy to integrate stand-alone positioning modules
combine exceptional performance with highly flexible power,
design, and connectivity options. Their compact form factors and
SMT pads allow fully automated assembly with standard pick &
place and reflow soldering equipment for cost-efficient, high-
volume production enabling short time-to-market.
www.u-blox.com
UBX-14054794 - R15

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  • Page 1 6 GLONASS, GPS & QZSS modules Hardware Integration Manual Abstract This document describes the features and specifications of the cost effective and high-performance LEA-6, NEO-6 and MAX-6 GPS and GPS/GLONASS/QZSS modules featuring the u-blox 6 positioning engine. These compact, easy to integrate stand-alone positioning modules combine exceptional performance with highly flexible power, design, and connectivity options.
  • Page 2 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Document Information Title LEA-6 / NEO-6 / MAX-6 Subtitle u-blox 6 GLONASS, GPS & QZSS modules Document type Hardware Integration Manual Document number UBX-14054794 Revision and Date 26-Sep-2017 Document status Production Information...

  • Page 3: Preface

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 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

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Contents Preface ..........................3 Contents ..........................4 Hardware description ....................7 Overview .............................. 7 Architecture ............................7 Power management ..........................8 1.3.1 Connecting power ........................8 1.3.2 Operating modes .......................... 9 Antenna supply - V_ANT (LEA-6) ......................
  • Page 5 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.4.1 MAX-6 passive antenna design....................36 2.4.2 Pin description for MAX-6 designs ....................37 Layout ..............................37 2.5.1 Footprint and paste mask ......................37 2.5.2 Placement ........................... 39 2.5.3 Antenna connection and grounding plane design ............... 40 2.5.4...
  • Page 6 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Safety precautions ..........................64 Product testing ......................65 u-blox in-series production test ......................65 Test parameters for OEM manufacturer ....................65 System sensitivity test ......................... 66 4.3.1 Guidelines for sensitivity tests ...................... 66 4.3.2...

  • Page 7: Hardware Description

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1 Hardware description 1.1 Overview The u-blox 6 leadless chip carrier (LCC) modules are standalone GPS and GPS/GLONASS/QZSS modules featuring the high performance u-blox 6 positioning engine. These compact, easy to integrate modules combine exceptional GPS performance with highly flexible power, design, and connectivity options.

  • Page 8: Power Management

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1.3 Power management 1.3.1 Connecting power u-blox 6 receiver modules have three power supply pins: VCC, V_BCKP and VDDUSB. (No VDDUSB for MAX-6) 1.3.1.1 VCC - main power The main power supply is fed through the VCC pin. During operation, the current drawn by the u-blox 6 GPS module can vary by some orders of magnitude, especially, if low-power operation modes are enabled.

  • Page 9: Operating Modes

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1.3.2 Operating modes u-blox 6 modules with FW 7.0x or ROM6.02 have two continuous operating modes (Maximum Performance and Eco) and one intermittent operating mode (Power Save mode). Maximum Performance mode freely uses the acquisition engine, resulting in the best possible TTFF, while Eco mode optimizes the use of the acquisition engine to deliver lower current consumption.

  • Page 10: System Functions

    RS232 standard levels (+/- 12 V) can be realized using level shifters such as Maxim MAX3232. Hardware handshake signals and synchronous operation are not supported. For more information, see the LEA-6 Data Sheet [1], NEO-6 Data Sheet [3],or MAX-6 Data Sheet [11]. 1.6.2 USB (LEA-6/NEO-6) The u-blox 6 Universal Serial Bus (USB) interface supports the full-speed data rate of 12 Mbit/s.

  • Page 11: Display Data Channel (Ddc)

    1.6.3 Display Data Channel (DDC) An I C compatible Display Data Channel (DDC) interface is available with LEA-6, NEO-6 and MAX-6 modules for serial communication. For more information about DDC implementation refer to the u-blox 6 Receiver Description including Protocol Specification [4]. Background information about the DDC interface is available in Appendix C.1.
  • Page 12 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1.6.3.1 Communicating to an I C EEPROM with the GPS receiver as I C master Serial I C memory can be connected to the DDC interface. This can be used to save configuration permanently. It will automatically be recognized by firmware.

  • Page 13: Spi (Neo-6, Lea-6R)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual At start up ensure that the host allows enough time (250 ms) for the receiver to interrogate any external EEPROM over the bus. The receiver always performs this interrogation within 250 ms of start up, and the external host must provide the GPS receiver sufficient time to complete it.
  • Page 14 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Following SPI serial Flash are supported: Manufacturer Order No. Winbond W25X10A Winbond W25X20A AMIC A25L010 AMIC A25L020 Table 4: Supported SPI FLASH memory devices Only use serial FLASH types listed in Table 4. For new designs confirm if the listed type is still available. It is not possible to use other serial FLASH types than those listed in Table 4 with u-blox 6 receivers.
  • Page 15 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1.6.4.3 Pin configuration with module as one of several slaves The buffers enabled by the CS_N signal make sure that the GPS receiver starts up with a known defined configuration, since the SPI pins (MOSI, MISO and SCK) are at start up also configuration pins.

  • Page 16: I/O Pins

    NEO-6 and MAX-6 modules do not include a RESET_N pin. However, this functionality can be implemented for these modules by connecting the NEO-6 and MAX-6 pin 8 to pin 9 with a 3.3 k resistor, instead of connecting them directly. Pin 8 (NEO-6) or pin 9 (MAX-6) can then be used as a RESET_N input with the same characteristics as the reset pin on LEA-6 modules.

  • Page 17: Tx Ready Signal (Fw 7.0X)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1.7.6 TX ready signal (FW 7.0x) The TX ready signal indicates that the receiver has data to transmit. A listener can wait on the TX ready signal instead of polling the DDC or SPI interfaces. The UBX-CFG-PRT message lets you configure the polarity and the number of bytes in the buffer before the TX ready signal goes active.

  • Page 18: Lea-6R Considerations

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 1.7.9 LEA-6R considerations Figure 9: Block schematic of complete LEA-6R design LEA-6R includes the following special pins: SPI_MOSI, SPI_MISO, SPI_SCS2_N, FWD, SPI_ SCS1_N, SPI_SCK, and SPEED. Signal name Direction Usage Input...

  • Page 19: Design-In

    Do you want to be able to upgrade the firmware? Then you will have to use a programmable receiver module: choose an H2 variant.  Do you need USB? All LEA-6 and NEO-6 modules support USB.  Do you need Dead Reckoning – Then choose a LEA-6R or NEO-6V (see section 2.1.3) ...
  • Page 20 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Check Power Supply Requirements and Schematic:  Is the power supply within the specified range? (See data sheet.)  Is the voltage VDDUSB within the specified range?  Compare the peak current consumption of your u-blox 6 module (~70 mA) with the specification of the power supply.

  • Page 21: Design Considerations

    If you need Hot- or Warmstart in your application, connect a backup battery to V_BCKP  Decide whether TIMEPULSE or RESET_N7 options are required in your application and connect the appropriate pins on your module Only available with LEA-6 modules, but see section 1.7.1 for NEO-6 modules. UBX-14054794 Production Information Design-in...

  • Page 22: Automotive Dead Reckoning (Adr) Solutions

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.1.3 Automotive Dead Reckoning (ADR) solutions u-blox’ ADR supports different sensor inputs. The classical setup, called “Gyroscope plus Wheel Tick” (GWT), consists of a gyroscope providing the heading information and wheel tick providing the speed information.

  • Page 23: Lea-6 Design

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2 LEA-6 design 2.2.1 LEA-6 passive antenna design This is a minimal setup for a PVT GPS receiver with a LEA-6 module. Passive Antenna RF_IN LEA-6 Reserved Top View VCC_RF V_BCKP...
  • Page 24 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Passive Antenna RF_IN LEA-6 Reserved Top View VCC_RF V_BCKP V_ANT RESET_N CFG_COM1/ NC AADET_N SPI_SCS2_N /TIMEPULSE2 Reserved / FWD VCC_OUT Reserved / SPI_SCS1_N NReserved / SPI_SCK VDDUSB Micro USB_DM RxD1 Processor...

  • Page 25: Glonass Hw Design Recommendations (Lea-6N, Lea-6H-0-002)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2.2 GLONASS HW design recommendations (LEA-6N, LEA-6H-0-002 The Russian GLONASS satellite system is an alternative system to the US-based Global Positioning System (GPS). LEA-6N modules can receive and process GLONASS signals. LEA-6H-0-002 modules are GLONASS ready and are capable of receiving and processing GLONASS signals via a firmware upgrade8.
  • Page 26 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2.2.4 Passive Antenna The bandwidth of a ceramic patch antenna narrows with size (see Table 7). size Typical bandwidth 36*36*4 mm 40 MHz 25*25*4 mm 20 MHz 18*18*4 mm 10 MHz...
  • Page 27 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Figure 20 show a 36*36*4 mm patch antenna. Due to the large bandwidth, the antenna is also tolerant to changes in the ground plane. Figure 20 36*36*4 mm patch antenna Use at least a 25*25*4 mm patch antenna, (a 36*36*4 mm patch antenna is better) and tune it so that GPS &...

  • Page 28: Lea-6R Design

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2.2.7 Module design with passive antenna and an external LNA Figure 22 shows a GPS & GLONASS passive antenna design with the LEA-6N GLONASS, GPS & QZSS module. For best performance with passive antenna designs use an external LNA.
  • Page 29 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual The following block schematic specifies the A/D converter and temperature sensor for the LEA-6R. The LTC1860 and LM70-5 function at 5 V. A level translation with open-drain buffers and pull-up resistors on the outputs is required.
  • Page 30 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2.3.3 Supported A/D converters The following table lists the supported A/D converters: Manufacturer Device Linear Technology LTC1860 Table 10: Supported A/D converters 2.2.3.4 Supported temperature sensors The following table lists the supported temperature sensors:...
  • Page 31 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2.3.6 Odometer / Speedpulses DR receivers use signals from sensors in the car to establish the velocity and distance traveled. These sensors are referred to as the odometer and the signals can be designated odometer pulses, speedpulses, speed ticks, wheel pulses or wheel ticks.

  • Page 32: Pin Description For Lea-6 Designs

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.2.1 Pin description for LEA-6 designs Function Description Remarks Power Supply Voltage Provide clean and stable supply. Assure a good GND connection to all GND pins of the module, 7, 13-15, Ground preferably with a large ground.

  • Page 33: Neo-6 Design

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.3 NEO-6 design 2.3.1 Passive antenna design (NEO-6) This is a minimal setup for a PVT GPS receiver with a NEO-6 module. Passive Antenna MOSI/CFG_COM0 RF_IN MISO/CFG_COM1 CFG_GPS0/SCK VCC_RF Reserved Reserved...
  • Page 34 Figure 25: NEO-6 passive antenna design for best performance (with external LNA and SAW) Figure 26 below shows a passive antenna design for NEO-6 GPS modules with an external SAW-LNA-SAW for best performance and increased immunity to jammers such as GSM. For lowest power in backup mode use...

  • Page 35: Pin Description For Neo-6 Designs

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.3.2 Pin description for NEO-6 designs Function Description Remarks Power Supply Voltage Max allowed ripple on VCC=50 mVpp Assure a good GND connection to all GND pins of the module, 10,12,13,24 Ground preferably with a large ground plane.

  • Page 36: Max-6 Design

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.4 MAX-6 design MAX-6 modules provide the following signals:  ANTON Signal (to turn on and off external LNA). To save power consumption in Power Save mode. See section 2.6.9. ...

  • Page 37: Pin Description For Max-6 Designs

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.4.2 Pin description for MAX-6 designs Function Description Remarks Power Supply Voltage Max allowed ripple on VCC=50 mVpp 1,10,12 Ground Assure a good GND connection to all GND pins of the module, preferably with a large ground plane.
  • Page 38 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 0.8 mm [31.5 mil] Stencil: 150 m 15.7 mm [618 mil] 17.0 mm [669 mil] 17.0 mm [669 mil] 20.8 mm [819 mil] Figure 29: LEA-6 footprint Figure 30: LEA-6 paste mask 1.0 mm...

  • Page 39: Placement

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual MAX Form Factor (10.1 x 9.7 x 2.5): Same Pitch as NEO for all pins: 1.1 mm, but 4 pads in each corner (pin 1, 9, 10 and 18) only 0.7 mm wide instead 0.8 mm The paste mask outline needs to be considered when defining the minimal distance to the next component.

  • Page 40: Antenna Connection And Grounding Plane Design

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.5.3 Antenna connection and grounding plane design u-blox 6 modules can be connected to passive patch or active antennas. The RF connection is on the PCB and connects the RF_IN pin with the antenna feed point or the signal pin of the connector, respectively. Figure 36 illustrates connection to a typical five-pin RF connector.

  • Page 41: Antenna Micro Strip

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual micro strip line micro strip line Module Module Ground plane Ground plane Either don't use these layers or fill with ground planes Figure 37: PCB build-up for micro strip line. Left: 2-layer PCB, right: 4-layer PCB General design recommendations: ...

  • Page 42: Antenna And Antenna Supervisor

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual –For the correct calculation of the micro strip impedance, one does not only need to consider the distance between the top and the first inner layer but also the distance between the micro strip and the adjacent GND plane on the same layer Use the Coplanar Waveguide model for the calculation of the micro strip.

  • Page 43: Passive Antenna

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.6.1 Passive antenna A design using a passive antenna requires more attention regarding the layout of the RF section. Typically a passive antenna is located near electronic components; therefore care should be taken to reduce electrical ‘noise’...

  • Page 44: Active Antenna Bias Power (Lea-6)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.6.3 Active antenna bias power (LEA-6) There are two ways to supply the bias voltage to pin V_ANT. For Internal supply, the VCC_RF output must be connected to V_ANT to supply the antenna with a filtered supply voltage. However, the voltage specification of the antenna has to match the actual supply voltage of the u-blox 6 Receiver (e.g.

  • Page 45: Active Antenna Supervisor (Lea-6)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual References Value Tolerance Description Manufacturer R_BIAS 10   10% Resistor, min 0.250 W Table 17: Short circuit protection, bill of material Short circuits on the antenna input without limitation (R_BIAS) of the current can result in permanent damage to the receiver! Therefore, it’s recommended to implement an R_BIAS in all...
  • Page 46 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Powerup Disable Supervision Events AADET0_N Active Super- Antenna Enable Supervision User controlled events vision Antenna connected Periodic Short Circuit Disable reconnection detected Supervision attempts open circuit detected, given OCD enabled Open...
  • Page 47 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual References Value Tolerance Description Remarks 10   5% Resistor, min 0.250 W 560   5% Resistor  5% Resistor 100 k LT6000 Rail to Rail Op Amp Linear Technology Table 18: Active antenna supervisor, bill of material ...

  • Page 48: Active Antenna (Neo-6 And Max-6)

    2.6.5 Active antenna (NEO-6 and MAX-6) NEO-6 and MAX-6 modules do not provide the antenna bias voltage for active antennas on the RF_IN pin. It is therefore necessary to provide this voltage outside the module via an inductor L as indicated in Figure 48. u-blox recommends using an inductor from Murata (LQG15HS27NJ02).
  • Page 49 Good Microstrip Microstrip Inductor L Inductor L Antenna Supply Voltage Antenna Supply Voltage (e.g. VCC_RF) (e.g. VCC_RF) Figure 50: Recommended layout for connecting the antenna bias voltage for LEA-6M and NEO-6 UBX-14054794 Production Information Design-in Page 49 of 85...

  • Page 50: External Active Antenna Supervisor Using Antoff (Neo-6)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.6.6 External active antenna supervisor using ANTOFF (NEO-6) Figure 51: External active antenna supervisor using ANTOFF (NEO-6) References Value Tolerance Description Remarks / Manufacturer 10   5% Resistor, min 0.25 W 560 ...

  • Page 51: External Active Antenna Supervisor Using Anton (Max-6)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.6.7 External active antenna supervisor using ANTON (MAX-6) Figure 52: External active antenna supervisor using ANON (MAX-6) References Value Tolerance Description Remarks / Manufacturer 10   5% Resistor, min 0.25 W 560 ...

  • Page 52: External Active Antenna Control (Neo-6)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.6.8 External active antenna control (NEO-6) Figure 53: External active antenna control (NEO-6) When using an external LNA in PSM on / off mode, pin 17 can be programmed as ANTOFF (see section 1.7.7).

  • Page 53: External Active Antenna Control (Max-6)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 2.6.9 External active antenna control (MAX-6) ANTON Signal can be used to turn on and off an external LNA. This reduces power consumption in Power Save Mode (Backup mode). Figure 54: External active antenna control (MAX-6)

  • Page 54: Product Handling

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3 Product handling 3.1 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 the data sheet of the specific u-blox 6 GPS module.

  • Page 55: Optical Inspection

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Heating/ Reflow phase The temperature rises above the liquidus temperature of 217°C. Avoid a sudden rise in temperature as the slump of the paste could become worse.  Limit time above 217°C liquidus temperature: 40 – 60 s ...

  • Page 56: Cleaning

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3.2.4 Cleaning In general, cleaning the populated modules is strongly discouraged. Residues underneath the modules cannot be easily removed with a washing process.  Cleaning with water will lead to capillary effects where water is absorbed in the gap between the baseboard and the module.

  • Page 57: Conformal Coating

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3.2.9 Conformal coating ® Certain applications employ a conformal coating of the PCB using HumiSeal or other related coating products. These materials affect the HF properties of the GPS module and it is important to prevent them from flowing into the module.

  • Page 58: Esd Handling Precautions

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3.3.3 ESD handling precautions ESD prevention is based on establishing an Electrostatic Protective Area (EPA). The EPA can be a small working station or a large manufacturing area. The main principle of an EPA is that there are no highly charging materials in the vicinity of ESD sensitive electronics, all conductive materials are grounded, workers are grounded, and charge build-up on ESD sensitive electronics is prevented.

  • Page 59: Esd Protection Measures

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3.3.4 ESD protection measures GPS receivers are sensitive to Electrostatic Discharge (ESD). Special precautions are required when handling. For more robust designs, employ additional ESD protection measures. Using an LNA with appropriate ESD rating can provide enhanced GPS performance with passive antennas and increases ESD protection.

  • Page 60: Electromagnetic Interference (Emi)

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Small passive antennas (<2 dBic and Passive antennas (>2 dBic or Active Antennas (without internal filter which need performance critical) performance sufficient) the module antenna supervisor circuits) Bandpass Bandpass Filtler Filtler...

  • Page 61: Applications With Wireless Modules Leon / Lisa

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3.3.8 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 receiver.
  • Page 62 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Measures against in-band jamming include:  Maintaining a good grounding concept in the design  Shielding  Layout optimization  Filtering  Placement of the GPS antenna  Adding a CDMA, GSM, WCDMA bandpass filter before handset antenna 3.3.8.4...

  • Page 63: Recommended Parts

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 3.3.9 Recommended parts Manufacturer Part ID Remarks Parameters to consider Diode ESD9R3.3ST5G (3.3.4 C) Standoff Voltage>3.3 V • Low Capacitance < 0.5 pF ON Semiconductor ESD9L3.3ST5G (3.3.4 C) Standoff Voltage>3.3 V •...

  • Page 64: Safety Precautions

    3.4 Safety precautions LEA-6 / NEO-6 / MAX-6 modules must be supplied by an external limited power source in compliance with the clause 2.5 of the standard IEC 60950-1. In addition to external limited power source, only separated or Safety Extra-Low Voltage (SELV) circuits are to be connected to the module, including interfaces and antennas.

  • Page 65: Product Testing

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 4 Product testing 4.1 u-blox in-series production test u-blox focuses on high quality for its products. To achieve a high standard it’s 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 66: System Sensitivity Test

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 4.3 System sensitivity test The best way to test the sensitivity of a GPS device is with the use of a 1-channel GPS simulator. It assures reliable and constant signals at every measurement.

  • Page 67: Testing Neo-6V Designs

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual 4.3.3.2 Speedpulse signal A rectangular waveform with 2 kHz frequency shall be fed into the SPEED input. The result can be read back with the UBX-NAV-EKFSTATUS message: Speed Ticks: 1800...2400 4.3.3.3 Gyroscope (rate) input Do not move the device and check UBX-ESF-MEAS: 2 >...

  • Page 68: Appendix

    LEA-6 / NEO-6 / MAX-6 - 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 Ground Global Positioning System Global System for Mobile Communications...
  • Page 69 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual ANTARIS 4 u-blox 5 u-blox 6 NEO-6M/Q NEO-4S NEO-5M/Q • ROM, 3.0 V NEO-5D/G NEO-6G • ROM, 1.8 V LEA-4P/H LEA-6H LEA-5H • Flash memory, Antenna Supervisor LEA-4A/S LEA-6A/S LEA-5A/S •...

  • Page 70: Software Migration

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual B.2 Software migration B.2.1 Software migration from ANTARIS 4 or u-blox 5 to a u-blox 6 GPS receiver Software migration from ANTARIS 4 or u-blox 5 to a u-blox 6 GPS receiver is a straightforward procedure.

  • Page 71: Software Migration From 6.02 To 7.03

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual The default NMEA message set for u-blox 6 is GGA, GLL, GSA, GSV, RMC and VTG. Contrary to ANTARIS 4, ZDA is disabled by default. Firmware update is supported by all of these interfaces. The firmware update mechanism of u-blox 6 is more sophisticated than with ANTARIS 4.

  • Page 72: Migration Of Lea Modules

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual B.4 Migration of LEA modules B.4.1 Migration from LEA-4 to LEA-6 See also the migration Table in the u-blox5 Hardware Integration Manual. For u-blox6 the Input Voltage thresholds on the pins RXD1 and EXTINT0 have changed.

  • Page 73: Migration Of Lea-4R Designs To Lea-6R

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual LEA-4A/LEA-4S LEA-6A/LEA-6S Remarks for Migration Pin Name Typical Assignment Pin Name Typical Assignment TxD2 3.0 V out SDA2 RxD2 SCL2 1.8 – 5.0 V TxD1 TxD1 3.0 V out Output RxD1 RxD1 1.8 –...

  • Page 74: Migration From Lea-5 To Lea-6

    B.4.3 Migration from LEA-5 to LEA-6 For u-blox6 only the Input Voltage thresholds on the pins RXD1 and EXTINT0 have changed. Be aware, that with u-blox 6 there is no LEA anymore, which supports SPI interface. For SPI consider NEO-6 form factor.

  • Page 75: Migration From Neo-5 To Neo-6

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual B.5.2 Migration from NEO-5 to NEO-6 For u-blox 6 only the Input Voltage thresholds on the pins RXD1 and EXTINT0 have changed. Also check the setting of the configuration pins. Serial termination resistors: Recommendation has changed from 27  to 22 . See section 1.6.2.1.

  • Page 76: C Interface Backgrounder

    For most DDC systems the low and high input voltage level thresholds of SDA and SCL depend on V . See the LEA-6 Data Sheet [1] or NEO-6 Data Sheet [3] for the applicable voltage levels. DDC Device A DDC Device B...

  • Page 77: Ddc Troubleshooting

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual of the device. The default DDC address for u-blox GPS receivers is set to 0x42. Setting the mode field in the CFG-PRT message for DDC accordingly can change this address. The first byte sent is comprised of the address field and R/W bit. Hence the byte seen on the bus 0x42 is shifted by 1 to the left plus R/W bit thus being 0x84 or 0x85 if analyzed by scope or protocol analyzer.

  • Page 78: Spi Interface

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual  Are the high and low level voltages on SDA and SCL correct during I C transfers? The I C standard defines the low level threshold with 0.3 Vcc, the high level threshold with 0.7 Vcc. Modifying the termination resistance Rp, the serial resistors Rs or lowering the SCL clock rate could help here.
  • Page 79 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual device is not selected (i.e. its chip select is not activated), its data output enters a high-impedance state (hi-Z) and does not interfere with SPI bus activities. The data output MISO functions as the data return signal from the slave to the master.
  • Page 80 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual The majority of SPI devices provide all four of these lines. Sometimes MOSI and MISO are multiplexed, or else one is missing. A peripheral device, which must not or cannot be configured, requires no input line but only a data output.

  • Page 81: D Dr Calibration

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual D DR calibration D.1 Constraints The calibration of the DR sensors is a transparent and continuously ongoing process during periods of good GPS reception:  Gyroscope Bias Voltage level of the gyroscope while driving a straight route or not moving ...
  • Page 82 LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual performance can already be expected, as all sensors are calibrated. Still further fine calibration will be ongoing with good GPS reception and, if a temperature sensor is available, the temperature compensation table will be filled.

  • Page 83: Related Documents

    LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual Related documents LEA-6 Data Sheet, Docu. No GPS.G6-HW-09004 LEA-6-N Data Sheet, Docu. No GPS.G6-HW-12004 NEO-6 Data Sheet, Docu. No GPS.G6-HW-09005 u-blox 6 Receiver Description including Protocol Specification, Docu. No GPS.G6-SW-10018 u-blox 6 Receiver Description including Protocol Specification (GPS/GLONASS/QZSS), Docu.

  • Page 84: Revision History

    Integration LEA-6R (1.2), FW7, Data ready indicator (1.7.6), Second time pulse for LEA-6T (1.7.5), Figure 41 and Figure 46, External active antenna supervisor NEO-6 (2.6.6), D DR calibration updated: Rework (3.2.8), Recommended parts (3.3.9), RTCM (B), Migration of LEA-4R designs to LEA-6R (B.4.2), Checklist (2.1), 2.2.1 LEA-6 passive antenna design, 2.3.1 Passive antenna...

  • Page 85: Contact

    LEA-6 / NEO-6 / MAX-6 - 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 Europe, Middle East, Africa America u-blox Singapore Pte. Ltd. u-blox AG Phone: +65 6734 3811 u-blox America, Inc.

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