Overview

The 874003-05 is a high performance Differential-to-LVDS Jitter Attenuator designed for use in PCI Express® systems. In some PCI Express® systems, such as those found in desktop PCs, the PCI Express® clocks are generated from a low bandwidth, high phase noise PLL frequency synthesizer. In these systems, a jitter attenuator may be required to attenuate high frequency random and deterministic jitter components from the PLL synthesizer and from the system board. The 874003-05 has a bandwidth of 6.2MHz with <1dB peaking, easily meeting PCI Express® Gen2 PLL requirements. The 874003-05 uses IDT's 3rd Generation FemtoClock® PLL technology to achieve the lowest possible phase noise. The device is packaged in a 20 Lead TSSOP package, making it ideal for use in space constrained applications such as PCI Express® add-in cards.

874003-05 - Block Diagram
874003-05 - Pinout
874003-05 - Block Diagram
874003-05 - Pinout
  • Three differential LVDS output pairs
  • One differential clock input
  • CLK/nCLK can accept the following differential input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
  • Input frequency range: 98MHz to 128MHz
  • Output frequency range: 98MHz to 320MHz
  • VCO range: 490MHz - 640MHz
  • Supports PCI Express® Spread-Spectrum Clocking
  • High PLL bandwidth allows for better input tracking
  • PCI Express® (2.5 Gb/s) and Gen 2 (5 Gb/S) jitter compliant
  • 0°C to 70°C ambient operating temperature
  • Full 3.3V operating supply
  • Available in lead-free (RoHS 6) packages

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    874003BG-05LF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 20 C Yes Tube
    874003BG-05LFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 20 C Yes Reel
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