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ICS9148-93 - Frequency Generator & Integrated Buffers

Datasheet Summary

Description

The ICS9148-93 is the single chip clock solution for Desktop/ Notebook designs using the VIA MVP3 style chipset.

It provides all necessary clock signals for such a system.

Spread spectrum may be enabled through I2C programming.

Features

  • • Generates the following system clocks: - 4 CPU(2.5V/3.3V) upto 100MHz. - 6 PCI(3.3V) @ 33.3MHz - 2AGP(3.3V) @ 2 x PCI - 12 SDRAMs(3.3V) @ either CPU or AGP - 2 REF (3.3V) @ 14.318MHz Skew characteristics: - CPU – CPU.

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Datasheet Details

Part number ICS9148-93
Manufacturer Integrated Circuit Systems
File Size 648.52 KB
Description Frequency Generator & Integrated Buffers
Datasheet download datasheet ICS9148-93 Datasheet
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Full PDF Text Transcription

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Integrated Circuit Systems, Inc. ICS9148-93 Advance Information Frequency Generator & Integrated Buffers for PENTIUM/ProTM General Description The ICS9148-93 is the single chip clock solution for Desktop/ Notebook designs using the VIA MVP3 style chipset. It provides all necessary clock signals for such a system. Spread spectrum may be enabled through I2C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9148-93 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations. Serial programming I C interface allows changing functions, stop clock programming and frequency selection.
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