PLL Clock Generator Single 20-Pin TSSOP

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 Pericom"s patented Phase Locked Loop (PLL) techniques, the device takes a 25MHz crystal 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.

• PCIe, 2.0 complaint
• 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
• Industrial temperature range
• Spread Bypass option available
• Spread and frequency selection via external pins
• Packaging: (Pb-free and Green)
  • 20-pin, 173-mil wide TSSOP