CY2280 datasheet(8/12 Pages) CYPRESS

Part #	CY2280

Description	100-MHz Pentium II Clock Synthesizer/Driver with Spread Spectrum for Mobile or Desktop PCs

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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8 / 12 page

CY2280

Document #: 38-07207 Rev. *A

Page 8 of 12

Spread Spectrum Clocking

Frequency (MHz)

Spread Spectrum Enabled

Spread Spectrum Disabled

Description

Configuration

Outputs

Min.

Max.

Unit

Modulation Frequency

All (except -1)

30.0

33.0

kHz

Down Spread Margin at the Fundamental Frequency

-11S

CPU, PCI

0.0

–0.6

%

Down Spread Margin at the Fundamental Frequency

-21S

CPU, PCI, APIC

0.0

–0.6

%

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