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Description of product

Description:

The PI6C557-05 is a spread spectrum clock generator compliant to PCI Express® 2.0 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce Electromagnetic Interference (EMI). 

The PI6C557-05 provides four differential (HCSL) or LVDS spread spectrum outputs. The PI6C557-05 is configured to select spread and clock selection. Using Diodes' patented Phase-Locked Loop (PLL) techniques, the device takes a 25MHz crystal or reference input and produces four pairs of differential outputs (HCSL) at 100MHz and 200MHz clock frequencies. It also provides spread selection of -0.5%, -1.0%, -1.5%, and no spread.

Features:

  • PCIe® 2.0 complaint
    y Phase jitter - 2.1ps RMS (typ)
  • LVDS compatible outputs
  • Supply voltage of 3.3V ±5%
  • 25MHz crystal or clock input frequency
  • HCSL outputs, 0.7V Current mode differential pair
  • Jitter 40ps cycle-to-cycle (typ)
  • Spread of -0.5%, -1.0%, -1.5%, and no spread