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SM840002 - Ultra-Low Jitter LVCMOS Clock Frequency Synthesizer

Description

The SM840002 is a dual 10-Gigabit Ethernet and Gigabit Ethernet, 62.5MHz, 125MHz, or 156.25MHz LVCMOS clock frequency synthesizer and a member of the ClockWorks™ family of devices from Micrel.

It provides a low-noise timing solution for high-speed, high-accuracy synthesis of clock signals.

Features

  • Generates two LVCMOS outputs.
  • Operating supply modes:.
  • Core/Output.
  • 3.3V/3.3V, 2.5V/2.5V.
  • Typical phase jitter @156.25MHz~64 fs (1.875MHz.
  • 20MHz).
  • Crystal frequency: 25MHz.
  • 62.5MHz, 125MHz, or 156.25MHz output frequency.
  • Output Skew: 12ps (maximum).
  • Phase Noise @ 156.25MHz:.
  • 1KHz:.
  • 126dBc/Hz.
  • 10KHz:.
  • 130dBc/Hz.
  • 100KHz:.
  • 126dBc/Hz.
  • 1MHz:.
  • 1.

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Datasheet preview – SM840002

Datasheet Details

Part number SM840002
Manufacturer MICREL
File Size 344.24 KB
Description Ultra-Low Jitter LVCMOS Clock Frequency Synthesizer
Datasheet download datasheet SM840002 Datasheet
Additional preview pages of the SM840002 datasheet.

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Full PDF Text Transcription

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SM840002 ClockWorks™ Dual 10-Gigabit/Gigabit Ethernet 62.5MHz, 125MHz, or 156.25MHz, Ultra-Low Jitter LVCMOS Clock Frequency Synthesizer General Description The SM840002 is a dual 10-Gigabit Ethernet and Gigabit Ethernet, 62.5MHz, 125MHz, or 156.25MHz LVCMOS clock frequency synthesizer and a member of the ClockWorks™ family of devices from Micrel. It provides a low-noise timing solution for high-speed, high-accuracy synthesis of clock signals. It includes a patented RotaryWave® architecture that provides a very stable clock with very-low noise. Power supplies of either 2.5V or 3.3V are supported, with superior jitter and phase-noise performance. The device synthesizes a 62.5MHz, 125MHz, or 156.25MHz, lownoise LVCMOS output pair for Ethernet applications.
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