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LEA-M8F

u-blox M8高精度タイミング&基準周波数搭載GNSSモジュール

  • GPS/QZSS、GLONASS、BeiDouの同時並行受信
  • 同期低位相ノイズ30.72MHzシステム基準発振器搭載
  • 外部発振器の高精度な測定と制御
  • 業界最高の捕捉感度と衛星1機によるタイミング
  • 自律100ppbホールドオーバー
  • 外部PTP、Sync‑Eおよびネットワーク・リッスンとの統合が可能
LEA-M8F module
17 x 22.4 x 3.5 mm

製品バリエーション

LEA-M8F

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

製品バリエーションLEA-M8F
GNSS features 
GNSSBeiDou, GLONASS, GPS / QZSS
Number of concurrent GNSS2
Concurrent GNSS
OscillatorVCTCXO
アンテナ 
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 
プログラマブル・フラッシュ・メモリ
Frequency output
追加LNA
追加SAW
Other 
マーケット産業, インフラストラクチャ

概要

製品概要

データシート

インテグレーション・マニュアル

Interface Manual

アプリケーション・ノート

ホワイトペーパー

インストール・ガイド

リリースノート

適合宣言書

ドライバー

ユーザーガイド

Technical Note

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.