EDN Europe March 2005 Archive
MARCH 2005
FEATURES:
Software-defined radio breaks cover
Software-defined radio has long been the holy grail of communications
engineers working mainly with military projects. Although all-digital
implementations are still some way off, hybrid architectures now appearing may
pave the way for strategic development
within the commercial sphere.
By David Marsh, Contributing Technical Editor
Working with wideband scopes:
dos & don'ts
Despite high-performance scopes' copious built-in intelligence, you
still must employ lots of your own brainpower to obtain meaningful results in
high-speed serial-bus debugging.
By Dan Strassberg, Contributing Technical Editor
S-parameters and
digital-circuit design
As bus speeds move into the microwave range, digital designers need
thorough knowledge of S-parameters.
By Jeff Loyer, Intel Corp.
LEADING EDGE:
VOIP goes visual
$99 microcontroller-development kit includes IDE,
software
Structured ASICs widen market reach
Differential op-amp improves acquisition resolution
Digital amplifier topology aims high in audio
Dual-core device adds networking
Real-time DSO bandwidth jumps to 15 GHz
Stable, flexible clock-recovery module broadens
sampling scopes' appeal
DESIGN IDEAS:
Use an off-the-shelf signal source as a
jitter/wander generator
Temperature controller saves energy
Calculator program finds closest standard-resistor
values
Laser simulator helps avoid destroyed diodes
Touch switch needs no dc return path
JFETs offer LC oscillators with few components
Charge pump converts -5V to 5V
DEPARTMENTS & COLUMNS
And so proceed, ad infinitum By
Graham Prophet, Editor
