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W48S101-04 - Spread Spectrum Motherboard Frequency Generator

Features

  • Key Specifications.
  • Maximized EMI suppression using Cypress’s Spread Spectrum technology.
  • I2C™ interface.
  • Four copies of CPU output.
  • Eight copies of PCI clock (synchronous w/CPU output).
  • Two copies of 14.318-MHz IOAPIC output.
  • One copy of 48-MHz USB output.
  • Selectable 24-/48-MHz clock-through-resistor strapping.
  • Three buffered copies of 14.318-MHz reference input.
  • Input is a 14.318-MHz XTAL or reference signal.

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Full PDF Text Transcription

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PRELIMINARY W48S101-04 Spread Spectrum Motherboard Frequency Generator Features Key Specifications • Maximized EMI suppression using Cypress’s Spread Spectrum technology • I2C™ interface • Four copies of CPU output • Eight copies of PCI clock (synchronous w/CPU output) • Two copies of 14.318-MHz IOAPIC output • One copy of 48-MHz USB output • Selectable 24-/48-MHz clock-through-resistor strapping • Three buffered copies of 14.318-MHz reference input • Input is a 14.318-MHz XTAL or reference signal • Selectable 100-MHz or 66-MHz CPU outputs • Power management control input pins • Test mode and output three-state through I2C interface Supply Voltages:....................................... VDDQ3 = 3.3V±5% VDDQ2 = 2.5V±5% CPU Cycle to Cycle Jitter: ......................................
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