4-output Differential Buffer For PCIe Gen1-2

The 9DB403 is compatible with the Intel DB400v2 Differential Buffer Specification. This buffer provides 4 PCI Express® Gen2 clocks. The 9DB403 is driven by a differential output pair from a CK410B+, CK505 or CK509B main clock generator.

Features

  • 4 - 0.7 V current-mode differential output pairs
  • Supports zero delay buffer mode and fanout mode
  • Bandwidth programming available
  • 50-100 MHz operation in PLL mode
  • 50-400 MHz operation in Bypass mode
  • Spread spectrum modulation tolerant, 0 to -0.5% down spread and +/- 0.25% center spread.
  • Supports undriven differential outputs in PD# and SRC_STOP# modes for power management.
  • Outputs cycle-cycle jitter < 50 ps
  • Outputs skew: 50 ps
  • Phase jitter: PCIe Gen1 < 86 ps peak to peak
  • Phase jitter: PCIe Gen2 < 3.0/3.1 ps rms
  • 28-pin SSOP/TSSOP pacakge
  • Available in RoHS compliant packaging
  • Supports Commercial (0 to +70°C) and Industrial (-40 to +85°C) temperature ranges

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9DB403DFILF Active PYG28 SSOP 28 I Yes Tube Availability
9DB403DFILFT Active PYG28 SSOP 28 I Yes Reel Availability
9DB403DFLF Active PYG28 SSOP 28 C Yes Tube Availability
9DB403DFLFT Active PYG28 SSOP 28 C Yes Reel Availability
9DB403DGILF Active PGG28 TSSOP 28 I Yes Tube Availability
9DB403DGILFT Active PGG28 TSSOP 28 I Yes Reel Availability
9DB403DGLF Active PGG28 TSSOP 28 C Yes Tube Availability
9DB403DGLFT Active PGG28 TSSOP 28 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
9DB403D Datasheet - Datasheet PDF 194 KB Oct 31, 2012
Application Notes & White Papers
AN-815 Understanding Jitter Units - Application Note PDF 476 KB Apr 23, 2014
AN-828 Termination - LVPECL - Application Note PDF 229 KB Jul 5, 2016
AN-843 PCI Express Reference Clock Requirements - Application Note PDF 1.81 MB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection - Application Note PDF 403 KB May 11, 2014
AN-840 Jitter Specifications for Timing Signals - Application Note PDF 349 KB May 7, 2014
AN-827 Application Relevance of Clock Jitter - Application Note PDF 1.06 MB Apr 23, 2014
AN-805 Recommended Ferrite Beads - Application Note PDF 38 KB Jan 14, 2014
Other
The IDT Communications Products Advantage - Overview PDF 2.54 MB Feb 13, 2017
The IDT Consumer Products Advantage - Overview PDF 6.67 MB Jan 27, 2017
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
The IDT Automotive Advantage - Overview PDF 5.67 MB Jan 18, 2017
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016