W158 Spread Spectrum System Frequency Synthesizer Features • Maximized EMI suppression using Cypress’s spread spectrum technology • Intel® CK98 Specification compliant • 0.
5% downspread outputs deliver up to 10 dB lower EMI • Four skew-controlled copies of CPU output • Eight copies of PCI output (synchronous w/CPU output) • Four copies of 66-MHz fixed frequency 3.
3V clock • Two copies of CPU/2 outputs for synchronous memory reference • Three copies of 16.
67-MHz IOAPIC clock, synchronous to CPU clock • One copy of 48-MHz USB output • Two copies of 14.
31818-MHz reference clock • Programmable to 133- or 100-MHz operation • Power management control pins for clock stop and shut down • Available ...

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