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W48S111-14 - Spread Spectrum Desktop / Notebook System Frequency Generator

Datasheet Summary

Features

  • Maximized EMI suppression using IC WORKS’ Spread Spectrum Technology.
  • Reduces measured EMI by as much as 10dB.
  • I2C programmable to 133MHz.
  • Two skew-controlled copies of CPU output.
  • SEL100/66# selects CPU frequency (100 or 66.8MHz).
  • Seven copies of PCI output (synchronous w/CPU output).
  • One copy of 14.31818 MHz IOAPIC output.
  • One copy of 48MHz USB output.
  • Selectable 24/48MHz clock is determined by resistor straps on.

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Datasheet Details

Part number W48S111-14
Manufacturer IC WORKS
File Size 109.75 KB
Description Spread Spectrum Desktop / Notebook System Frequency Generator
Datasheet download datasheet W48S111-14 Datasheet
Additional preview pages of the W48S111-14 datasheet.

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Full PDF Text Transcription

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Advance Information W48S111-14 Spread Spectrum Desktop / Notebook System Frequency Generator Features • Maximized EMI suppression using IC WORKS’ Spread Spectrum Technology • Reduces measured EMI by as much as 10dB • I2C programmable to 133MHz • Two skew-controlled copies of CPU output • SEL100/66# selects CPU frequency (100 or 66.8MHz) • Seven copies of PCI output (synchronous w/CPU output) • One copy of 14.31818 MHz IOAPIC output • One copy of 48MHz USB output • Selectable 24/48MHz clock is determined by resistor straps on power up • One high drive output buffer that produces a copy of the 14.318MHz reference • Isolated core VDD pin for noise reduction Key Specifications Supply Voltages: VDDQ3 = 3.3V±5% VDDQ2 = 2.
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