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W48C54A - Frequency Synthesizers

General Description

Fixed 1.843-MHz output for serial I/O clock application Fixed 12-MHz output for keyboard clock application Fixed 16-MHz output for APIC or bus clock application Fixed Reference output.

Key Features

  • Proprietary crystal oscillator circuitry provides low REFOUT jitter, excellent duty cycle.
  • Power-on delay feature ensures full VDD is reached prior to output activation.
  • 3.3V and 5V operation supported including the VRE (Voltage Regulated Extended) specification for Pentium® processor.
  • Pin and function compatible with AV9154/AV9155.
  • Integral PLL loop filter components ensures stable PLL operation in noisy system environment Block Diagram.
  • S.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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A W48C54A/55A Frequency Synthesizers Features • Proprietary crystal oscillator circuitry provides low REFOUT jitter, excellent duty cycle • Power-on delay feature ensures full VDD is reached prior to output activation • 3.