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Datasheet Microchip SM844256

ManufacturerMicrochip
SeriesSM844256

The SM844256 provides a low-noise timing solution for high speed, high accuracy synthesis of clock signals

Datasheets

  • Download » Datasheet PDF, 247 Kb, File published: Nov 9, 2015
    SM844256 - 10 Gigabit Ethernet and SONET, 6 output, Ultra-Low Jitter LVDS Freq
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    SM844256
    10 Gigabit Ethernet and SONET, 6 Output,
    Ultra-Low Jitter LVDS Frequency
    Synthesizer General Description Features The SM844256 provides a low-noise timing solution for
    high speed, high accuracy synthesis of clock signals.
    Common applications include SONET, Gigabit Ethernet,
    10 Gigabit Ethernet, and similar networking standards. It
    includes a power reduction methodology, along with a
    patented RotaryWaveTM architecture that provides a very
    stable clock with very low noise.
    Power supplies of either 3.3V or 2.5V are supported, with
    superior jitter and phase noise performance. The device
    synthesizes different low noise LVDS output frequencies
    such as 125MHz, 156.25MHz, 312.5MHz, and 625MHz for
    Ethernet applications; 77.76MHz, 155.52MHz, 311.04MHz,
    and 622.08MHz for SONET applications. The crystal
    reference frequencies used include 25MHz and 19.44Mhz
    for Ethernet and SONET applications, respectively.
    The SM844256 is an excellent replacement for IDT Femtoclocks, with improved accuracy, power consumption,
    waveform integrity, and jitter.
    Data sheets and support documentation can be found on
    Micrel’s web site at: www.micrel.com. Generates six LVDS outputs 2.5V or 3.3V operating range Typical phase jitter @ 125MHz
    (1.875MHz to 20MHz): 80 fs (typical) @ 3.3V 75MHz to 625MHz output frequencies Industrial temperature range Green, RoHS, and PFOS compliant Available in 24-pin TSSOP EPAD Operating supply modes: ...

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Manufacturer's Classification

  • Clock and Timing > Clock Generation > Low Jitter MEMS

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