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CPCI
passes potholes, enters the on-ramp
CompactPCI, a blend of VME and desktop-PC technology,
holds promise as an industrial computer bus. A growing mass of
products is making that promise a reality.
--Richard
A Quinnell, Technical Editor
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RF-component
diversity complicates design
Designers of RF circuitry now have too much of a good
thing. Discrete components, building blocks, system-level ICs,
and even ASICs can meet your application requirements, but
each choice carries important trade-offs in performance, cost,
and flexibility.
--Bill
Schweber, Technical Editor
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A
tale of three buses:
DeviceNet, Profibus-DP, Foundation Fieldbus
The best of buses for one industrial-automation
application can be the worst of buses for another.
Wide-ranging requirements have spurred the creation of
specialized networks. Understanding the forces driving each of
these networks can help you make a far, far better choice for
your next system.
--Mike
Santori, National Instruments
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General-purpose
µPs for DSP applications:
consider the trade-offs
Using general-purpose processors instead of dedicated
DSPs for DSP-intensive applications has some advantages, as
well as some pitfalls. General-purpose µPs are a viable
option in some system designs.
--Garrick
Blalock, Berkeley Design Technology Inc
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Some
designs send mixed signals
The phrase "mixed signal" typically refers to
designs containing both analog and digital functions or
components, but this idea is an oversimplification. In the
real world, every electronic component behaves in an analog
fashion, but you can connect these components to form
functions amenable to digital approximations.
--Clive
Maxfield, Intergraph Computer Systems
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