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Features

  • Integrated terminations
    • 85Ω transmission lines require 0 termination resistors  
    • 100Ω transmission lines require only 2 series resistors per output
  • OE pin for each output supports CLKREQ# applications
  • Intelligent power-down mode when all OE# pins are high (all outputs off)
  • Spread-spectrum tolerant
  • Open drain LOS# output indicates a loss of the input clock and returns the outputs to a Low/Low state
  • Flexible power sequencing: Input clock is internally biased so a floating input clock will not inject noise into the system
  • Power Down Tolerant: Control inputs will not clamp to ground or VDD if a signal is applied before chip VDD is applied
  • Space saving 4mm × 4mm 20-VFQFPN
  • Easy AC coupling to other logic families; see application note AN-891.

Description

The 9DBL0455 device is a 4-output PCIe clock fanout buffer for PCIe Gen 1–7 applications. It has an open drain Loss of Signal (LOS) output to indicate the absence or presence of an input clock.

For information regarding evaluation boards and material, please contact your local sales representative.

Parameters

Attributes Value
Temp. Range (°C) -40 to 85°C

Package Options

Pkg. Type Pkg. Dimensions (mm) Lead Count (#) Pitch (mm)
VFQFPN 4.0 x 4.0 x 1.0 20 0.5

Applications

  • PCIe clock distribution in:
    • PCIe Riser Cards
    • NVME eSSD and JBOD
    • High-Performance Computing and Accelerators

Applied Filters:

A detailed overview of IDT's full-featured PCI Express (PCIe) clock and timing solutions. The presentation addresses PCIe Gen 1, Gen 2, Gen 3, and Gen 4 architectures and how IDT's industry-leading solutions provide all the functions, features, and performance required by the application.

Presented by Ron Wade, System Architect at IDT. For more information visit the PCIe clocks page.