Contents
May 1, 2008

Cover Story
- 10-GbE in the mainstream
10-GbE edges closer to major product rollouts as silicon prices and power consumption fall. But it may be two years or more before widespread deployments start meeting demand.
Design Features
- Buck-boost converters change with the times
Buck-boost converters provide voltages both above and below the input voltage. This feature is useful if your design's input voltage changes drastically or if its load voltage varies. - EDN’s 2007 Innovator and Innovations of the Year: Yet another vintage year for engineering genius
EDN’s 18th Annual Innovation Awards ceremony has once again recognized outstanding individuals, team efforts, and great ideas from the year past. We would like to take a moment to present to you the winners, with a brief summary of their achievements.
Pulse
- RF screen coating saves space
- Processor supports capacitive touch sensing for button and slider replacement
- Process makes silicon circuits that can fold, bend, and stretch
- Solid-state cooling device harnesses corona discharge
- Active-matrix display employs nanowire transistors
- Small footprint value-priced scopes offer bigger displays, deeper memory, bus debugging, and more
- Receivers reinforce digital-display-interface ecosystem
- Rugged, high-voltage RF transistor uses vertical process, yielding better gain
Design Ideas
- Circuit and software provide accurate recalibration for baseline PIC microcontroller’s internal oscillator
- Microcontroller moving-dot display interface uses three I/O lines
- Microcontroller displays multiple chart or oscilloscope timing ticks
- Fast-settling synchronous-PWM-DAC filter has almost no ripple
- Switched-gain op amp serves as phase detector or mixer
Departments and Columns
- edn.comment
Be careful what you promise: Lawsuit hinges on 'out-of-the-box end-to-end solution'
- Signal Integrity
Scrape it: How to probe a microstrip trace with no accessible test points or vias
- Supply Chain
Counterfeiting still a top concern for distributors
- Supply Chain
Analog demand holds strong
- Supply Chain
Greenpeace raises bar with energy criteria
- Tales From The Cube
Watch those power leads!


