ICS9248-72 Datasheet PDF - Integrated Circuit Systems Frequency Generator & Integrated Buffers Specs

ICS9248-72 - Frequency Generator & Integrated Buffers

Datasheet Summary

Description

The ICS9248-72 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs.

This chip provides all the clocks required for such a system when used with a Direct Rambus Clock Generator(DRCG) chip such as the ICS9211-01.

Features

Up to 200MHz frequency support. Power Down feature. Spread Spectrum for EMI control (0 to 0.5% down spread , + 0.25% center spread) I2C interface. VDDL=2.5V,VDD=3.3V CPU Output Jitter:.

Datasheet Details

Part number	ICS9248-72
Manufacturer	Integrated Circuit Systems
File Size	552.91 KB
Description	Frequency Generator & Integrated Buffers
Datasheet	ICS9248-72 Datasheet
Additional preview pages of the ICS9248-72 datasheet.

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Full PDF Text Transcription

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Integrated Circuit Systems, Inc. ICS9248-72 Preliminary Product Preview Frequency Timing Generator for PENTIUM II Systems General Description The ICS9248-72 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs. This chip provides all the clocks required for such a system when used with a Direct Rambus Clock Generator(DRCG) chip such as the ICS9211-01. Spread Spectrum may be enabled by driving the SPREAD# pin active. Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS924872 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations.

Published: Oct 7, 2005 |