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MK1491-06J - AMD Geode Clock Source

Download the MK1491-06J datasheet PDF. This datasheet also covers the MK1491-06RLF variant, as both devices belong to the same amd geode clock source family and are provided as variant models within a single manufacturer datasheet.

General Description

The MK1491-06 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 SOIC or in 28-pin SSOP.
  • Available in Pb (lead) free.
  • Provides all critical timing for the AMD Geode companion chip.
  • Four PCI clocks.
  • Selectable PCIF on up to 2 outputs.
  • Early PCI clock selectability.
  • Up to 4 Reference clocks.
  • 48 MHz USB and 24MHz SIO support.
  • AC97 audio clock.
  • Multiple power down modes.
  • Low EMI Enable pin reduces EMI radiation on PCI clocks (patented).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MK1491-06RLF_IntegratedCircuitSystems.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number MK1491-06J
Manufacturer Integrated Circuit Systems
File Size 215.90 KB
Description AMD Geode Clock Source
Datasheet download datasheet MK1491-06J 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.

View original datasheet text
MK1491-06 AMD Geode™ Clock Source Description The MK1491-06 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 and AC97 audio clocks, 24 MHz and 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.