Simple networks will free many sensors from wires By Dan Strassberg, Contributing Technical Editor
With a suitable protocol, such as Zigbee, sensors that don't have a lot to say or hear needn't consume much energy to keep in touch. Sometimes, an alkaline cell can provide all the power they need for as long as a decade.
Design Features
Easing the modeling of lossy lines By Wolfgang Maichen, PhD, Teradyne Inc
Simple measurements and straightforward techniques not only can often obviate the need for expensive simulation tools, but also can provide a more intuitive feel for network behavior.
Flatten DAC frequency response By Ken Yang, Maxim Integrated Products
Equalizing techniques can cope with the nonflat frequency response of a DAC.
Power-management techniques for multimedia mobile phones By Crystal Lam, On Semiconductor
Asia and other markets are racing to launch digital TV and streaming video and music in handheld formats. These technologies bring benefits, but designers still face the constraints of incorporating multimedia functions in small form factors in the face of increasing battery life.
FROM EDN EUROPE: Photosensors brighten consumer and industrial
products By David Marsh, Contributing Technical Editor
Accurate detection of light levels finds limitless applications in automotive, consumer, and industrial equipment. A new generation of photosensors simplifies the designer's task and makes colour analysis available at minimal cost.
