Overview

The 9FGV0431 is a 4-output very-low power clock generator for PCIe Gen 1–4 applications. The device has four output enables for clock management and supports two different spread spectrum levels in addition to spread off.

9FGV0431 - Block Diagram
9FGV0431 - Block Diagram
  • 1.8V operation; reduced power consumption
  • OE# pins; support DIF power management
  • LP-HCSL differential clock outputs; reduced power and board space
  • Programmable slew rate for each output; allows tuning for various line lengths
  • Programmable output amplitude; allows tuning for various application environments
  • DIF outputs are blocked until PLL is locked; clean system start-up
  • Selectable 0%, -0.25%, or -0.5% spread on DIF outputs; reduces EMI
  • External 25MHz crystal; supports tight ppm with 0ppm synthesis error
  • Configuration can be accomplished with strapping pins; SMBus interface is not required for device control
  • 3.3V tolerant SMBus interface works with legacy controllers
  • Space-saving 5mm x 5mm 32-VFQFPN; minimal board space
  • Selectable SMBus addresses; multiple devices can easily share an SMBus segment

Applications

  • PCIe Gen 1-4 clock generation
    • Riser cards
    • Storage
    • Networking
    • JBOD
    • Communications
    • Access points

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.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    9FGV0431AKILF
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    Samples Available
    		 VFQFPN 32 I Yes Tray 3 Get Samples,
    9FGV0431AKILFT
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    		VFQFPN 32 I Yes Reel 3
    9FGV0431AKLF
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    Samples Available
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    		VFQFPN 32 C Yes Tray 3 1.826 Get Samples,
    9FGV0431AKLFT
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    		VFQFPN 32 C Yes Reel 3
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