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SM802108 - ClockWorks 10GbE & GbE (156.25MHz 125MHz) Ultra-Low Jitter - LVPECL Frequency Synthesizer

General Description

The SM802108 is a member of the ClockWorks™ family of devices from Micrel and provides an extremely low-noise timing solution for GbE and 10GbE Ethernet clock signals.

It is based upon a unique patented RotaryWave® architecture that provides very low phase noise.

Key Features

  • Generates two LVPECL clock outputs at 156.25MHz and two LVPECL clock outputs at 125MHz.
  • 2.5V or 3.3V operating range.
  • Typical phase jitter @ 156.25MHz (1.875MHz to 20MHz): 110fs (typical) at 3.3V.
  • Industrial temperature range.
  • Green, RoHS, and PFOS compliant.
  • Available in 24-pin 4mm × 4mm QFN package.

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Datasheet Details

Part number SM802108
Manufacturer MICREL
File Size 487.72 KB
Description ClockWorks 10GbE & GbE (156.25MHz 125MHz) Ultra-Low Jitter - LVPECL Frequency Synthesizer
Datasheet download datasheet SM802108 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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SM802108 ClockWorks™ 10GbE & GbE (156.25MHz, 125MHz) Ultra-Low Jitter, LVPECL Frequency Synthesizer General Description The SM802108 is a member of the ClockWorks™ family of devices from Micrel and provides an extremely low-noise timing solution for GbE and 10GbE Ethernet clock signals. It is based upon a unique patented RotaryWave® architecture that provides very low phase noise. The device operates from a 3.3V or 2.5V power supply and synthesizes two LVPECL output clocks at 156.25MHz and another two at 125MHz. The SM802108 accepts a 25 MHz crystal or LVCMOS reference clock. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features • Generates two LVPECL clock outputs at 156.25MHz and two LVPECL clock outputs at 125MHz • 2.5V or 3.