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 tw...

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