Crystal
oscillators: looking good in wireless
systems
Bountiful quartz, with the assistance of
stabilization and tuning tricks, makes an
ideal frequency reference for wireless
systems. --Bill Travis, Senior
Technical Editor
Design Features
CTI converges on
a single TDM bus
Computer-telephony resource boards use
the CT Bus in new designs and upgrades.
The transition to PCI cards is timely for
the industry to come together on one
time-division-multiplex bus. The CT Bus
enables interoperable products for
computer-telephony-integration systems
that cost-effectively scale from
small-office to large-call-center
applications. --Stephen Kempainen,
Technical Editor
Moving beyond
programmable logic: if, when, how?
The decision to migrate from PLDs and
FPGAs to lower cost ASICs seems easy at
first glance but may be more complicated
than you think. Do a little research and
analysis before you proceed, and
carefully choose which migration path to
follow. --Brian Dipert, Technical
Editor
Specialized test
judges DMT-amplifier performance Traditional
analog test techniques and
specifications, which are based on
sine-wave testing, don't reflect the true
performance of devices that process the
discrete multitone waveform. A unique
specification--the multitone power
ratio--is a better performance indicator
for this application. --Richard Roberts, Harris
Semiconductor
