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W164

Cypress Semiconductor
Part Number W164
Manufacturer Cypress Semiconductor
Description Spread Spectrum Desktop/Notebook System Frequency Generator
Published Apr 17, 2005
Detailed Description W164 Spread Spectrum Desktop/Notebook System Frequency Generator Features • Maximized EMI suppression using Cypress’s S...
Datasheet PDF File W164 PDF File

W164
W164


Overview
W164 Spread Spectrum Desktop/Notebook System Frequency Generator Features • Maximized EMI suppression using Cypress’s Spread Spectrum technology • Reduces measured EMI by as much as 10 dB • I2C programmable to 153 MHz (16 selectable frequencies) • 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 output 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 Key Specifications Supply V...



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