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W48S111-14 Datasheet

Part Number W48S111-14
Manufacturers Cypress Semiconductor
Logo Cypress Semiconductor
Description Spread Spectrum Desktop/Notebook System Frequency Generator
Datasheet W48S111-14 DatasheetW48S111-14 Datasheet (PDF)

PRELIMINARY W48S111-14 Spread Spectrum Desktop/Notebook System Frequency Generator Features Key Specifications • Maximized EMI suppression using Cypress’s Spread Spectrum Technology • Reduces measured EMI by as much as 10 dB • I2C programmable to 133 MHz • Two skew-controlled copies of CPU output • SEL100/66# selects CPU frequency (100 or 66.8 MHz) • 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.

  W48S111-14   W48S111-14






Part Number W48S111-14
Manufacturers IC WORKS
Logo IC WORKS
Description Spread Spectrum Desktop / Notebook System Frequency Generator
Datasheet W48S111-14 DatasheetW48S111-14 Datasheet (PDF)

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 d.

  W48S111-14   W48S111-14







Spread Spectrum Desktop/Notebook System Frequency Generator

PRELIMINARY W48S111-14 Spread Spectrum Desktop/Notebook System Frequency Generator Features Key Specifications • Maximized EMI suppression using Cypress’s Spread Spectrum Technology • Reduces measured EMI by as much as 10 dB • I2C programmable to 133 MHz • Two skew-controlled copies of CPU output • SEL100/66# selects CPU frequency (100 or 66.8 MHz) • 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 Supply Voltages:.... VDDQ3 = 3.3V±5% VDDQ2 = 2.5V±5% CPU Cycle to Cycle Jitter: .. 200 ps CPU, PCI Output Edge Rate: . ≥1 V/ns CPU0:1 Output Skew: .


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