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FIFO as a Logic Analyzer; Clock synthesizer

Discussion in 'Electronic Components' started by [email protected], Apr 21, 2005.

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  1. Guest

    I have a big FIFO chip covered by dust, that I'd like to finally use.
    The most useful application I'm imagining for it is to finally make
    myself a logic analyzer. This FIFO (Texas Instruments SN74V3690-6PEU)
    is a 3.3V device, but has 5V tolerant inputs. "Great!" I thought.

    What I'm asking you is: should I connect the probes (just a header
    cable) directly to the FIFO, or should I use an high speed buffer
    inbetween? Consider that the chip is specced at 166MHz.

    Moreover, what is the cheapest way to produce a variable clock
    speed up to 166MHz (and possibly beyond, for other applications)?
    A PLL? Any chip you may suggest me?

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