Ublox NEO-F10N Integration Manual
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Ublox NEO-F10N Integration Manual

Standard precision gnss module professional grade
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NEO-F10N
Standard precision GNSS module
Professional grade
Integration manual
Abstract
This document describes the features and application of the u-blox NEO-
F10N module, an L1/L5 dual-band GNSS receiver for meter-level accuracy
in urban environment.
www.u-blox.com
UBXDOC-963802114-12193 - R02
C1-Public

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Summary of Contents for Ublox NEO-F10N

  • Page 1  NEO-F10N Standard precision GNSS module Professional grade Integration manual Abstract This document describes the features and application of the u-blox NEO- F10N module, an L1/L5 dual-band GNSS receiver for meter-level accuracy in urban environment. www.u-blox.com UBXDOC-963802114-12193 - R02 C1-Public...
  • Page 2 NEO-F10N - Integration manual Document information Title NEO-F10N Subtitle Standard precision GNSS module Document type Integration manual Document number UBXDOC-963802114-12193 Revision and date 07-Nov-2023 Disclosure restriction C1-Public This document applies to the following products: Product name Type number FW version IN/PCN reference...

  • Page 3: Table Of Contents

    NEO-F10N - Integration manual Contents 1 System description.......................5 1.1 Overview..............................5 1.2 Architecture..............................5 1.2.1 Block diagram..........................5 1.3 Pin definition............................6 1.3.1 Pin assignment..........................6 2 Receiver configuration......................8 2.1 Basic receiver configuration........................9 2.1.1 Basic hardware configuration...................... 9 2.1.2 Internal LNA mode configuration....................9 2.1.3 GNSS signal configuration......................
  • Page 4 5.1.2 Safety precautions........................28 5.2 Packaging............................... 29 5.2.1 Reels..............................29 5.2.2 Tapes...............................29 5.2.3 Moisture sensitivity level......................30 5.2.4 Soldering............................30 Appendix............................ 34 A Migration..............................34 A.1 Hardware changes.......................... 34 A.2 Software changes........................... 35 B Reference designs............................36 B.1 Typical design..........................36 B.2 Active antenna design........................37 C External components..........................

  • Page 5: System Description

    NEO-F10N - Integration manual 1 System description This document is an important source of information for all aspects of NEO-F10N software and hardware design. The purpose of this document is to provide guidelines for a successful integration of the receiver with the customer's end product.

  • Page 6: Pin Definition

    NEO-F10N - Integration manual 1.3 Pin definition 1.3.1 Pin assignment Figure 2: NEO-F10N pin assignment Pin no. Name Description SAFEBOOT_N Safeboot mode (leave open) Reserved Not connected TIMEPULSE Time pulse signal (shared with SAFEBOOT_N pin) EXTINT External interrupt Reserved Not connected Reserved...
  • Page 7 Reserved Not connected Reserved Not connected Reserved Not connected Reserved Not connected UART TX UART RX V_BCKP Backup voltage supply Supply voltage Ground Table 1: NEO-F10N pin assignment UBXDOC-963802114-12193 - R02 1 System description Page 7 of 42   C1-Public...

  • Page 8: Receiver Configuration

    NEO-F10N. NEO-F10N is configured using UBX configuration interface keys. The configuration database in the receiver's RAM holds the current configuration, which is used by the receiver at runtime. It is constructed at the receiver startup from several sources of configuration.

  • Page 9: Basic Receiver Configuration

    10 receivers support three modes for the internal low-noise amplifier (LNA): normal gain, low gain, and bypass mode. The NEO-F10N default is the normal mode. With a high-gain external active antenna, the low gain or the bypass mode shall be used to save power.

  • Page 10: Gps L5 Signal Health Status Configuration

    [3]. 2.1.4 GPS L5 signal health status configuration NEO-F10N supports both GPS L1 C/A and L5 signals. Broadcasting of Civil Navigation (CNAV) messages on the L5 signal began in April 2014. At the time of writing, GPS L5 signals remain...

  • Page 11: Message Output Configuration

    NEO-F10N - Integration manual Interface Configuration groups UART CFG-UART1-*, CFG-UART1INPROT-*, CFG-UART1OUTPROT-* Table 6: Interface configuration 2.1.6 Message output configuration The receiver supports two protocols for output messages: industry-standard NMEA and u-blox UBX. Any message type can be enabled or disabled individually and the output rate is configurable.

  • Page 12: Navigation Input Filters

    NEO-F10N - Integration manual Platform Description Stationary Used in timing applications (antenna must be stationary) or other stationary applications. Velocity restricted to 0 m/s. Zero dynamics assumed. Pedestrian Applications with low acceleration and speed, e.g. how a pedestrian would move. Low acceleration assumed.

  • Page 13: Navigation Output Filters

    NEO-F10N - Integration manual Configuration item Description CFG-NAVSPG-INFIL_NCNOTHRS, A navigation solution will only be attempted if there is at least the given number of CFG-NAVSPG-INFIL_CNOTHRS satellites with signals at least as strong as the given threshold. Table 9: Navigation input filter parameters If the receiver has only three satellites for calculating a position, the navigation algorithm uses a constant altitude to compensate for the missing fourth satellite.

  • Page 14: Static Hold

    NEO-F10N - Integration manual 2.2.4.3 Low-speed course over ground filter The CFG-ODO-USE_COG configuration item activates this feature and the CFG-ODO- COGMAXSPEED, CFG-ODO-COGMAXPOSACC configuration items are used to configure a low- speed course over ground filter (also named heading of motion 2D). This filter derives the course over ground from position at very low speed.

  • Page 15: Freezing The Course Over Ground

    NEO-F10N - Integration manual Figure 4: Flowchart of static hold mode 2.2.6 Freezing the course over ground If the low-speed course over ground filter is deactivated or inactive (see section Low-speed course over ground filter), the receiver derives the course over ground from the GNSS velocity information.
  • Page 16 NEO-F10N - Integration manual Figure 5: Flowchart of course over ground freezing UBXDOC-963802114-12193 - R02 2 Receiver configuration Page 16 of 42   C1-Public...

  • Page 17: Receiver Functionality

    3.1.2 PIOs This section describes the PIOs supported by NEO-F10N. All PIO active voltage levels are related to the VCC supply voltage. All the inputs have internal pull-up resistors in normal operation and can be left open if unused.

  • Page 18: Forcing Receiver Reset

    I2C pins are used for antenna supervisor functions. 3.1.2.1 RESET_N NEO-F10N provides a RESET_N pin to reset the receiver. The RESET_N pin is input-only with an internal pull-up resistor to VCC and should be left open for normal operation. Driving RESET_N low for at least 1 ms will trigger a reset of the receiver.
  • Page 19 NEO-F10N - Integration manual to decode the ephemeris (18-36 seconds under strong signal conditions), while the other channels continue to search satellites. Once there is a sufficient number of satellites with valid ephemeris, the receiver can calculate position and velocity data. Other GNSS receiver manufacturers call this the Factory startup mode.

  • Page 20: Power Management

    The receiver maintains time information and navigation data to speed up the receiver restart after backup or standby mode. The NEO-F10N supports two backup modes: hardware backup mode and software standby mode. 3.3.2.1 Hardware backup mode The hardware backup mode allows entering a backup state and resuming operation by switching the main power supply on and off...

  • Page 21: Hardware Integration

    A power supply at VCC must be present for normal operation. A supply at V_BCKP is optional. If present, it enables the hardware backup mode when the VCC supply is off. Refer to the NEO-F10N Data sheet [1] for absolute maximum ratings, operating conditions, and power requirements.

  • Page 22: Internal Lna Modes

    RF front-end. 4.2.1 Internal LNA modes In addition to the L1 and L5 band LNAs integrated in the RF front-end circuit in NEO-F10N, there are internal LNAs in the u-blox F10 receiver. The internal L1 and L5 band LNAs in the receiver have three operating modes: normal gain, low gain, and bypass mode.

  • Page 23: Antenna Power Supply

    NEO-F10N - Integration manual radio systems. Estimation of the RF interference level coupled into the receiver antenna is a starting point for RF front-end design. For designs with other radio systems, the maximum power coupled into the antenna can be estimated from the maximum transmission power and the isolation between the antennas.

  • Page 24: Layout

    NEO-F10N - Integration manual Figure 6: Antenna supply network 4.3 Layout GNSS signals on the surface of the earth have a very low signal strength and are about 15 dB below the thermal noise floor. When integrating a GNSS receiver into a PCB, the placement of the components, as well as grounding, shielding, and interference from other digital devices are crucial issues that need to be considered very carefully.
  • Page 25 The RF_IN trace on the top layer should be referenced to a suitable ground layer. The VCC pad for the NEO-F10N Standard precision GNSS module needs to have as low an impedance as possible with large vias to the lower power layer of the PCB. The VCC pad needs a large pad and the decoupling capacitor must be placed as close as possible.

  • Page 26: Package Footprint, Copper And Solder Mask

    Note that the copper and solder masks have the same size and position. Figure 9: Recommended copper land and solder mask opening for NEO-F10N To improve the wetting of the half vias, reduce the amount of solder paste under the module and increase it outside of the module by defining the dimensions of the paste mask to form a T-shape...
  • Page 27 NEO-F10N - Integration manual Figure 10: Recommended paste mask pattern for NEO-F10N UBXDOC-963802114-12193 - R02 4 Hardware integration Page 27 of 42   C1-Public...

  • Page 28: Product Handling

    (tip). 5.1.2 Safety precautions The NEO-F10N 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 29: Packaging

    For more information, see the u-blox packaging information reference [4]. 5.2.1 Reels NEO-F10N modules are deliverable in quantities of 250 pieces on a reel. They are shipped on reel type B, as specified in the u-blox Packaging information reference [4]. 5.2.2 Tapes Figure 11 shows the feed direction and illustrates the orientation of the components on the tape.

  • Page 30: Moisture Sensitivity Level

    NEO-F10N - Integration manual Figure 12: Tape dimensions (mm) 5.2.3 Moisture sensitivity level The moisture sensitivity level (MSL) for NEO-F10N modules is specified in the table below. Package MSL level LCC (professional grade) Table 12: MSL level For MSL standard see IPC/JEDEC J-STD-020, and J-STD-033 that can be downloaded from www.jedec.org.
  • Page 31 NEO-F10N - Integration manual During the initial heating of component leads and balls, residual humidity will be dried out. Note that the preheat phase does not replace prior baking procedures. • Temperature rise rate: max 3 °C/s. If the temperature rise is too rapid in the preheat phase, excessive slumping may be caused •...
  • Page 32 NEO-F10N - Integration manual Cleaning Do not clean with water, solvent, or ultrasonic cleaner: • Cleaning with water will lead to capillary effects where water is absorbed into the gap between the baseboard and the module. The combination of residues of soldering flux and encapsulated water leads to short circuits or resistor-like interconnections between neighboring pads.
  • Page 33 NEO-F10N - Integration manual 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 34: Appendix

    This section describes important differences to consider when migrating from u-blox M8 to u-blox F10. A.1 Hardware changes Table 13 lists the key hardware-related changes between NEO-F10N and the NEO-M8 modules. Feature Change Action needed / Remarks...

  • Page 35: Software Changes

    You may need to use additional external pull-up resistors to increase the drive strength of the digital IO output pin or adjust the load accordingly. Table 13: NEO-F10N hardware features compared to NEO-8Q/M8 modules A.2 Software changes Table 14 presents a summary of the key software-related changes between u-blox F10 and u-blox...

  • Page 36: B Reference Designs

    • NEO-F10N has an internal SAW filter diplexer, two SAW filters and an LTE band 13 notch filter which provides high out-of-band immunity against RF interference from other sources.

  • Page 37: Active Antenna Design

    • Designs using active antennas must not exceed 25 dB gain. For antenna gain above 25 dB, the internal LNA mode can be changed to low-gain or bypass mode. • The active antenna can be supplied either with the VCC_RF output from NEO-F10N as shown in Figure 16...
  • Page 38 NEO-F10N - Integration manual Figure 15: Design with active antenna controlled by LNA_EN signal Figure 16: Design with active antenna supplied by VCC_RF and controlled by LNA_EN signal UBXDOC-963802114-12193 - R02 Appendix Page 38 of 42   C1-Public...

  • Page 39: C External Components

    C External components This section lists the recommended values for the external components in the reference designs. C.1 Standard capacitors Table 15 presents the recommended capacitor values for NEO-F10N. Name Type / Value RF Bias-T capacitor 10 nF, 10%, 16 V, X7R Table 15: Standard capacitors C.2 Standard resistors...

  • Page 40: Related Documents

    NEO-F10N - Integration manual Related documents NEO-F10N Data sheet, UBX-23002117 u-blox F10 SPG 6.00 Release notes, UBXDOC-963802114-12318 u-blox F10 SPG 6.00 Interface description, UBX-23002975 u-blox Packaging information reference, UBX-14001652 For regular updates to u-blox documentation and to receive product change notifications please register on our homepage https://www.u-blox.com.

  • Page 41: Revision History

    NEO-F10N - Integration manual Revision history Revision Date Status / comments 05-Sep-2023 Initial release. 07-Nov-2023 Added sections: • GPS L5 signal health status configuration • LNA_EN Updated sections: • Block diagram • Pin assignment • Internal LNA modes • Migration UBXDOC-963802114-12193 - R02...
  • Page 42 NEO-F10N - Integration manual Contact u-blox AG Address: Zürcherstrasse 68 8800 Thalwil Switzerland For further support and contact information, visit us at www.u-blox.com/support. UBXDOC-963802114-12193 - R02 Page 42 of 42   C1-Public...

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