PCI Express® Jitter Attenuator

The 9DB306 is a high performance 1-to-6 Differential-to- LVPECL 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 zero delay buffer may be required to attenuate high frequency random and deterministic jitter components from the PLL synthesizer and from the system board. The 9DB306 has 2 PLL bandwidth modes. In low bandwidth mode, the PLL loop BW is about 500kHz and this setting will attenuate much of the jitter from the reference clock input while being high enough to pass a triangular input spread spectrum profile. There is also a high bandwidth mode which sets the PLL bandwidth at 1MHz which will pass more spread spectrum modulation. For serdes which have x30 reference multipliers instead of x25 multipliers, 5 of the 6 PCI Express® outputs (PCIEX1:5) can be set for 125MHz instead of 100MHz by configuring the appropriate frequency select pins (FS0:1). Output PCIEX0 will always run at the reference clock frequency (usually 100MHz) in desktop PC PCI Express® Applications.

Features

  • Six differential LVPECL output pairs
  • One differential clock input
  • CLK and nCLK supports the following input types: LVPECL, LVDS, LVHSTL, SSTL, HCSL
  • Maximum output frequency: 140MHz
  • Input frequency range: 90MHz - 140MHz
  • VCO range: 450MHz - 700MHz
  • Output skew: 135ps (maximum)
  • Cycle-to-Cycle jitter: 30ps (maximum)
  • RMS phase jitter @ 100MHz, (1.5MHz - 22MHz): 3ps (typical)
  • 3.3V operating supply
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package
  • Industrial temperature information available upon request

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9DB306BFLF Active PYG28 SSOP 28 C Yes Tube Availability
9DB306BFLFT Active PYG28 SSOP 28 C Yes Reel Availability
9DB306BLLF Active PGG28 TSSOP 28 C Yes Tube Availability
9DB306BLLFT Active PGG28 TSSOP 28 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
9DB306 Datasheet Datasheet PDF 197 KB Feb 17, 2016
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 14, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 27, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 12, 2015
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1503-01R1 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 333 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 20, 2015
PCN# : TB1503-01 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 291 KB Jul 20, 2015
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013
Other
The IDT Consumer Products Advantage Overview PDF 4.01 MB Jun 30, 2017
IDT PCI Express Solutions Overview 日本語, 简体中文 Overview PDF 768 KB Apr 19, 2017
The IDT Automotive Advantage Overview PDF 3.55 MB May 26, 2017
The IDT Communications Products Advantage Overview PDF 2.54 MB Feb 13, 2017
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
9db306 IBIS Model Model - IBIS ZIP 35 KB Oct 28, 2009
9DB306_Driver Model - HSPICE ZIP 11 KB May 24, 2008