PRELIMINARY W196 Spread Spectrum FTG for 440BX and VIA Apollo Pro-133 Features • Maximized EMI suppression using Cypress’s Spread Spectrum Technology • System frequency synthesizer for 440BX, 440ZX, and VIA Apollo Pro-133 • I2C programmable to 155 MHz (32 selectable frequencies) • Two skew-controlled copies of CPU output • Seven copies of PCI output (synchronous w/CPU output) • One copy of 14.
31818-MHz IOAPIC output • One copy of 48-MHz USB output • Selectable 24-/48-MHz clock is determined by resistor straps on power up • One high-drive output buffer that produces a copy of the 14.
318-MHz reference • Isolated core VDD pin for noise reduction CPU Cycle to Cycle Jitter: ...

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