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Timing diagram understanding....

Discussion in 'Electronic Basics' started by JJ, Mar 4, 2006.

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  1. JJ

    JJ Guest

    Hi Folks,
    I've just switched jobs from being an RF/uWave engineer to a position
    in a logic division. There's a reason for this and the reason is that the
    guys really need an RF engineer. There have been some changes in the world
    of ICs for things like cellular, particularly the new DigRF and OBSAI/CIPRI
    interfaces in chipsets, where the associated companies need to look at both
    the logic side of things and the demodulation side of things.

    My company is wonderful-and we have lots of canned training, but it's not
    quite enough.
    The folks I'm working with will teach me quite a bit, but I'm hoping to
    learn some
    things on my own to minimize the time those folk need to spend teaching me.
    In the past I've used Logic Analyzers a few times. What I'm looking for is
    on-line stuff that will teach me how to understand a timing diagram. The
    simple ones I do understand but now I'm finding I don't understand the
    and the timing associated with clocks, data, strobe lines etc.

    If anyone can point me to a good resource, I'd be very grateful!
  2. John Fields

    John Fields Guest

    Excellent resources are this newsgroup,, and
    alt.binaries.schematics.electronic, where binaries can be posted.

    I've cross-posted this reply to all of those groups in order that
    anyone who frequents any of those groups and can help will have
    their posts posted to all of the groups.

    Basically, a timing diagram is a picture of what happens at
    particular places in a circuit as time goes by, with time increasing
    along the "X" axis in quadrant I of a Cartesian plot and the nodes
    of interest of the circuit in question "stacked" on the Y axis.

    As time goes by, the amplitude changes of the nodes are plotted in
    Y, with the result that cause and effect relationships can be seen
    between the various signals on the diagram, with reference to time.

    I don't understand what you mean by the 'symbolism', but if you'd
    care to explain in a little more detail I'm sure someone here will
    be able to help you.
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