Overview

The 9DB1904 is electrically compatible to the Intel DB1900GS Differential Buffer Specification. This buffer provides 19-Output clocks for PCI-Express Gen2 or Intel QPI applications. A differential clock from a CK410B+ main clock generator, such as the 932S421 drives the 9DB1904. The 9DB1904 can provide outputs up to 400 MHz in Bypass Mode.

  • 19- 0.7 V HCSL differential output pairs
  • Phase jitter: PCIe Gen2 < 3.1 ps rms
  • Phase jitter: PCIe Gen1 < 86 ps peak to peak
  • Supports zero delay buffer mode and fanout mode
  • Bandwidth programming available
  • 8 selectable SMBus addresses for easy system expansion 90-147 MHz operation in PLL mode
  • 33-400 MHz operation in Bypass mode

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.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    9DB1904BKLF
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 72 C Yes Tray
    9DB1904BKLFT
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 72 C Yes Reel
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