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MK1491-09 - AMD Geode GX2 Clock Source

General Description

The MK1491-09 is a low-cost, low-jitter, high-performance clock synthesizer for AMD’s Geode-based computer and portable appliance applications.

Using patented analog Phased-Locked Loop (PLL) techniques, the device accepts a 14.318 MHz crystal input to produce multiple output clocks.

Key Features

  • Packaged in 28-pin SSOP (209 mil body).
  • Available in Pb (lead) free packaged.
  • Provides all critical timing for the AMD Geode companion chip.
  • Four selectable PCI clocks Three LPC interface clocks One Fixed 66 MHz clock 2 Reference clocks 48 MHz USB and 48 MHz IO support Power down mode Low EMI Enable pin reduces EMI radiation on PCI clocks, LCLKS, and 66 MHz clock.
  • Operating voltage of 3.3.

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Datasheet Details

Part number MK1491-09
Manufacturer Integrated Circuit Systems
File Size 156.42 KB
Description AMD Geode GX2 Clock Source
Datasheet download datasheet MK1491-09 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MK1491-09 AMD Geode™ GX2 Clock Source Description The MK1491-09 is a low-cost, low-jitter, high-performance clock synthesizer for AMD’s Geode-based computer and portable appliance applications. Using patented analog Phased-Locked Loop (PLL) techniques, the device accepts a 14.318 MHz crystal input to produce multiple output clocks. It provides selectable PCI local bus clocks, 48 MHz clocks for Super I/O and USB, as well as multiple Reference outputs. The device has multiple power-down modes to reduce power consumption.