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Ublox NEO-M8N User Manual

Ublox NEO-M8N
31 pages
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UBX-15029985 - R08
C1-Public www.u-blox.com
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.
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Ublox NEO-M8N Specifications

General IconGeneral
Channels72
Velocity Accuracy0.05 m/s
Time Accuracy30 ns
Max Update Rate10 Hz
Sensitivity Tracking-167 dBm
Acquisition Sensitivity-160 dBm
Cold Start26 s
Warm Start2 s
Hot Start1 s
Reacquisition1 s
Operating Temperature-40°C to +85°C
Supply Voltage2.7 V to 3.6 V
GNSSGPS, GLONASS, BeiDou, Galileo, QZSS
InterfaceUART, I2C, SPI
Dimensions12.2 mm x 16.0 mm x 2.4 mm
Position Accuracy2.5 m CEP

Summary

Hardware Description

Module Overview and Features

Provides a general overview of the NEO-8Q/NEO-M8 GNSS modules and their capabilities.

Module Configuration Methods

Details how to configure the GNSS module settings using UBX protocol messages or SQI flash.

Power Supply Connections

Explains the three power supply pins (VCC, V_BCKP, VDD_USB) and their functions.

Module Communication Interfaces

Describes the available communication interfaces: UART, USB, DDC, and SPI.

Input/Output Pin Functions

Details the functionality of various I/O pins, including reset, interrupts, and control signals.

EMI Mitigation for I/O Lines

Provides recommendations for preventing interference on I/O lines using resistors or ferrite beads.

Design and Integration

Detailed Pinout Description

Lists and describes each pin of the NEO-8Q and NEO-M8 series modules.

Minimal Hardware Design Example

Illustrates a basic hardware design for the NEO-8Q and NEO-M8 series GNSS receiver.

PCB Layout and Paste Mask Guidelines

Provides recommendations for PCB footprint and paste mask for module assembly.

Antenna Integration and Design

Covers antenna design considerations for both passive and active antennas.

Thermal Management in Layout Design

Discusses placement and shielding to manage thermal effects on GNSS performance.

Module Migration Guide

Migrating from u-blox 7 to NEO-8Q/M8

Guidance on migrating existing u-blox 7 designs to the newer NEO-8Q and NEO-M8 series.

Hardware Migration from NEO-6

Details hardware changes and considerations when migrating from NEO-6 to NEO-8Q/M8.

Software Migration for NEO-8Q/M8

Information on migrating software for use with the NEO-8Q and NEO-M8 series modules.

Product Handling and Safety

Module Packaging and Handling

Information on packaging, shipping, storage, and moisture sensitivity levels (MSL).

Soldering and Reflow Process

Detailed guidelines for soldering paste, reflow soldering, and inspection methods.

Electrical Safety and Interference Precautions

Essential precautions for Electrostatic Discharge (ESD), Electrical Overstress (EOS), and Electromagnetic Interference (EMI).

Integration with Cellular Modules

Discusses interference management and isolation when used with cellular modules.

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