概要

The 8T49N488I is a quad PLL with FemtoClock® NG technology, integrating low-phase noise frequency translator/synthesizer, jitter attenuator, and alarm and monitoring functions suitable for networking and communication applications. The device has four fully independent PLLs, each PLL can generate any output frequency in the 0.98MHz to 312.5MHz range and most output frequencies in the 312.5MHz to 1,300MHz range. A wide range of input reference clocks and operation reference clocks may be used as the source for the output frequency. Each PLL has three operating modes to support a very broad spectrum of applications: Frequency Synthesizer, High-Bandwidth Frequency Translator, and Low-Bandwidth Frequency Translator.

To see other devices in this product family, visit the Universal Frequency Translators page.

8T49N488I - Block Diagram
8T49N488I - Pinout
8T49N488I - Block Diagram
8T49N488I - Pinout
  • Fourth-generation FemtoClock® NG technology
  • Four fully independent PLLs
  • Outputs are programmable as LVPECL or LVDS
  • Programmable output frequency: 0.98MHz up to 1,300MHz
  • Two differential inputs support the following input levels: LVPECL, LVDS, LVHSTL, HCSL
  • Input frequency range: 8kHz to 710MHz
  • Input clock monitor and alarm
  • Smoothed reference switch
  • I²C serial interface for register programming
  • RMS phase jitter: 465fs (typical), Low Bandwidth mode (FracN)
  • RMS phase jitter: 333fs (typical), Synthesizer mode (Integer FB)
  • Full 2.5V ± 5% supply mode
  • -40 °C to 85 °C ambient operating temperature
  • 10mm × 10mm CABGA lead-free (RoHS 6) package
  • Additional family members include Dual-PLL (8T49N244I), Tri-PLL (8T49N366I) and Quad PLL (8T49N445I) devices

ドキュメント

設計・開発

ECADモデル

[製品選択]テーブル内の製品名をクリックするとSamacSysが提供する回路図シンボル、PCBフットプリント、3D CADモデルがご確認いただけます。 お探しのシンボルやモデルが見つからない場合、Webサイトから直接リクエストできます。

ECADモデルを調べる
Diagram of ECAD Models

製品選択

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    ご購入 / サンプル
    型名
    8T49N488A-000ASGI
    circle廃止品
    memory
    view_in_ar
    今すぐ購入する
    		CABGA 80 I Yes Tray
    8T49N488A-000ASGI8
    circle廃止品
    memory
    view_in_ar
    		CABGA 80 I Yes Reel
    8T49N488A-999ASGI
    circle廃止品
    memory
    view_in_ar
    		CABGA 80 I Yes Tray
    8T49N488A-999ASGI8
    circle廃止品
    memory
    view_in_ar
    		CABGA 80 I Yes Reel
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product