Skip to main content
874003-04 - Block Diagram
874003-04 - Pinout


PCI Express® Jitter Attenuator

Alternative Products
NOTICE - The following device(s) are recommended alternatives:
Functionally compatible

The 874003-04 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®TM 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 874003-04 has a bandwidth of 6.8MHz. The 6.8MHz provides a high bandwidth that can easily track triangular spread profiles, while providing jitter attenuation. The 874003-04 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.


  • Three differential LVDS output pairs
  • One differential clock input
  • CLK/nCLK can accept the following differential input levels: LVPECL, LVDS, LVHSTL, HCSLSSTL
  • 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
  • Full 3.3V supply mode
  • 0°C to 70°C ambient operating temperature

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
874003AG-04LFObsoletePGG20TSSOP20CYesTubeCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
PDN# : CQ-14-02R2 Product Discontinuation Notice PDF 549 KB Aug 4, 2014
PDN# : CQ-14-02R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 545 KB Feb 11, 2014
PDN# : CQ-14-02 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 544 KB Jan 26, 2014
show all (4)
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
IDT PCI Express Solutions Overview 简体中文, 日本語 Overview PDF 945 KB Aug 4, 2016