ICS9250-22 Datasheet PDF - Integrated Circuit Systems Frequency Generator & Integrated Buffers Specs

ICS9250-22 - Frequency Generator & Integrated Buffers

Datasheet Summary

Description

The ICS9250-22 is a single chip clock solution.

Spread spectrum typically reduces system EMI by 8dB to 10dB.

This simplifies EMI qualification without resorting to board design iterations or costly shielding.

Features

4 Differential CPU Clock Pairs @ 3.3V.
2 - 3V MREF clocks for memory reference seeds, (separate single ended but 180 degrees out of phase).
4 - 66MHz reference output.
10 - 3V 33MHz PCI clocks.
2 - 48MHz clocks.
2 - 14.318 reference output Features:.
Support power management: Power Down Mode.
Supports Spread Spectrum modulation: 0 to -0.5% down spread.
Uses external 14.318MHz crystal.
Select logic for Di.

Datasheet Details

Part number	ICS9250-22
Manufacturer	Integrated Circuit Systems
File Size	106.47 KB
Description	Frequency Generator & Integrated Buffers
Datasheet	ICS9250-22 Datasheet
Additional preview pages of the ICS9250-22 datasheet.

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Full PDF Text Transcription

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Integrated Circuit Systems, Inc. ICS9250-22 Frequency Generator for P IV™ Recommended Application: P IV Chipset Support Output Features: • 4 Differential CPU Clock Pairs @ 3.3V • 2 - 3V MREF clocks for memory reference seeds, (separate single ended but 180 degrees out of phase) • 4 - 66MHz reference output • 10 - 3V 33MHz PCI clocks • 2 - 48MHz clocks • 2 - 14.318 reference output Features: • Support power management: Power Down Mode • Supports Spread Spectrum modulation: 0 to -0.5% down spread. • Uses external 14.318MHz crystal • Select logic for Differential Swing Control, Test mode, Tristate, Power down, Spread Spectrum, limited frequency select, selective clock enable.

Published: Dec 11, 2005 |