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LEA-M8F Modul

u-blox M8 GNSS-gestütztes Zeit- und Frequenz-Referenzmodul

Multi‑GNSS‑Synchronisation für kostenempfindliche Geräte am Rand des Netzwerks

  • Simultanempfang von GPS/QZSS, GLONASS, BeiDou
  • Integrierter disziplinierter 30.72 MHz Systemreferenzoszillator mit tiefem Phasenrauschen
  • Präzise Messung und Steuerung von externen Oszillatoren
  • Branchenweit führende Aufstart‑Empfindlichkeit und Single‑Satellite Timing
  • Eigenständiges Holdover mit 100 ppb
  • Vorbereitet für die Integration mit externem PTP, Sync‑E und Network Listen
LEA-M8F module
17 x 22.4 x 3.5 mm

Produktvarianten

LEA-M8F

u-blox M8 Time & Frequency Reference
module, Flash, VCTCXO, dual SAW, LNA

ProduktvariantenLEA-M8F
GNSS features 
GNSSBeiDou, GLONASS, GPS/QZSS
Number of concurrent GNSS2
Concurrent GNSS
OscillatorVCTCXO
Antenne 
Pin (active) for external antenna
Pin (passive) for external antenna
Area 
Global
Interfaces 
UART1
USB1
SPI1
DDC (I²C compliant)1
Electrical data 
Minimum supply [V]3.00
Maximum supply [V]3.6
Environmental data, quality & reliability 
Maximum temperature [°C]85
Minimum temperature [°C]-40
Size [mm] 17 x 22.4 x 3.5
Features 
Programmierbarer Flash-Speicher
Frequency output
Zusätzlicher LNA
Zusätzlicher SAW-Filter
Other 
MärkteIndustrie, Infrastruktur

Produktzusammenfassung

LEA-M8F (timing) Product Summary

27-Feb-2018

331 KB

Datenblatt

LEA-M8F (timing) Data Sheet
1.61 MB

Hardware-Integrationshandbuch

LEA-M8F (timing) Hardware Integration Manual
2.03 MB

Interface-Handbuch

u-blox 8 / u-blox M8 Receiver Description, Protocol Specification

07-Nov-2018

3.55 MB

Anwendungshinweis

Data, Clock (IODC) Value Selection Process and IS-GPS-200H Compliance Statement

15-Mar-2018

43 KB
u-blox Production Test Information

22-Nov-2016

549 KB
LEA-M8F System Integration Guide
1.67 MB
Power Management Considerations for u-blox 7 / M8 GNSS receivers
1.09 MB

Freigabe-Information

u-blox M8 UDR 1.21 Firmware Release Notes

30-Aug-2018

192 KB
u-blox GNSS Sensor Device Driver for Windows, v2.40

21-Dec-2017

129 KB
u-blox GNSS VCP Device Driver for Windows, v3.10

01-Nov-2017

126 KB
u-blox GNSS VCP Device Driver for Windows, v3.03

28-Apr-2017

125 KB
u-blox GNSS Sensor Device Driver for Windows, v2.33

28-Apr-2017

125 KB

Treiber

u-blox GNSS Sensor Device Driver for Windows, v2.40

01-Nov-2017

4.95 MB
u-blox GNSS VCP Device Driver for Windows, v3.10

01-Nov-2017

5.47 MB
u-blox GNSS Sensor Device Driver for Windows, v2.33

28-Apr-2017

4.94 MB
u-blox GNSS VCP Device Driver for Windows, v3.03

28-Apr-2017

4.76 MB
u-blox GNSS Standard Driver for Windows, v1.2.0.8
582 KB

Anwender-Führungshandbuch

u-blox GNSS Sensor and VCP Device Driver User Guide

01-Nov-2017

1.87 MB
Selection guide for u-blox GNSS USB Windows driver

01-Nov-2016

354 KB

Konformitätserklärung

LEA-M8F Declaration of Conformity (RED)

10-Jan-2018

68 KB

Übersicht

GNSS product line card

24-Aug-2018

473 KB
u-blox Package Information Guide

21-Aug-2018

2.55 MB
u-blox GNSS module overview

14-Feb-2017

690 KB

Whitepaper

GPS Compendium Book
5.75 MB
GNSS timing and the rise of small cells
281 KB
Anti-jamming techniques in u-blox GPS receivers
854 KB
u-blox’s comprehensive approach to multi-GNSS positioning
1.14 MB
u-blox's GNSS and cellular module philosophy
451 KB
u-blox M8 and u-blox 7: Two u-blox GNSS platform generations address all market requirements
331 KB
The promising marriage of wireless and GPS technologies
1.59 MB

u‑blox time and frequency products provide multi‑GNSS synchronisation for cost‑sensitive network edge equipment including Small Cell and Femto wireless base‑stations. The LEA‑M8F module is a fully self‑contained phase and frequency reference based on GNSS, but can also be used as part of a complete timing sub‑system including macro‑sniff Synchronous Ethernet and packet timing. The LEA‑M8F module includes a low‑noise 30.72 MHz VCTCXO meeting the master reference requirements for LTE Small Cells and provides 100 ppb autonomous hold‑over. The LEA‑M8F module can also measure and control an external TCXO or OCXO for TD‑LTE, LTE Advanced and other applications requiring extended hold‑over. External sources of synchronization are supported through time‑pulse and frequency inputs and a message interface. This allows measurements from macro‑sniff, Sync‑E or packet timing to be combined with measurements from GNSS. u‑blox time and frequency products include timing integrity alarms that report phase and frequency uncertainty both during normal operation and hold‑over. They feature a high dynamic range radio with both analog and digital interference mitigation supporting their inclusion as an integral part of a local area base station design. Example application (Small Cell) In a wireless Small Cell application, the LEA‑M8F can distribute a disciplined low‑phase noise 30.72 MHz reference signal directly to the RF transceivers. GNSS synchronisation is combined with network sources by an exchange of synchronisation signals, status and control messages with the base‑band processor. Source selection and hold‑over may be controlled by either the LEA‑M8F or base‑band application.