PCI Express® Jitter Attenuator

NOTICE - The following device(s) are recommended alternatives:

The 9DB202 is a high performance 1-to-2 Differential-to-HCSL 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-attenuating device may be necessary in order to reduce high frequency random and deterministic jitter components from the PLL synthesizer and from the system board. The 9DB202 has two PLL bandwidth modes. In low bandwidth mode, the PLL loop bandwidth is 500kHz. This setting offers the best jitter attenuation and is still high enough to pass a triangular input spread spectrum profile. In high bandwidth mode, the PLL bandwidth is at 1MHz and allows the PLL to pass more spread spectrum modulation. For serdes which have x10 reference multipliers instead of x12.5 multipliers, each of the two PCI Express®™ outputs (PCIEX0:1) can be set for 125MHz instead of 100MHz by configuring the appropriate frequency select pins (FS0:1).

Features

  • Two 0.7V current mode differential HCSL 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: 110ps (maximum)
  • Cycle-to-cycle jitter: 110ps (maximum)
  • RMS phase jitter @ 100MHz, (1.5MHz - 22MHz): 2.42ps (typical)
  • 3.3V operating supply
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free RoHS compliant 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
9DB202CFLF Obsolete PYG20 SSOP 20 C Yes Tube Availability
9DB202CFLFT Obsolete PYG20 SSOP 20 C Yes Reel Availability
9DB202CGLF Obsolete PGG20 TSSOP 20 C Yes Tube Availability
9DB202CGLFT Obsolete PGG20 TSSOP 20 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
9DB202 Datasheet Datasheet PDF 168 KB Mar 13, 2016
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PDN#: N-16-02 PRODUCT DISCONTINUANCE NOTICE ON SELECT DEVICES Product Discontinuation Notice PDF 161 KB Mar 6, 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# : TB1503-01R1 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 333 KB Oct 21, 2015
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1503-01 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 291 KB Jul 20, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 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
PCN# : TB0808-04 QTY PER TUBE CHANGE FOR SSOP-20 Product Change Notice PDF 55 KB Oct 12, 2008

Software & Tools

Title Other Languages Type Format File Size Date
9DB202 IBIS Model Model - IBIS ZIP 43 KB Nov 2, 2009