Direct Digital Synthesis (DDS) is a method for generating arbitrary frequency sine waves with high accuracy and spectral purity. The ability to generate spectrally pure sine waves at programmable arbitrary frequencies is useful for instrumentation, communications products, and other applications. Today’s Direct Digital Synthesis components (DDS) provide highly accurate, spectrally pure sine wave generation with reasonable power requirements. Modern DDS components have added communications features such as chirp programming, FM modulation, AM modulation, programmable gain settings, and the ability to generate period digital data strobes. All terrific features for an electronic engineer’s bag of tricks.
MontaVista Software announced a professional services offering for design engineers developing commercial products with Google Android. MontaVista’s Android Commercialization Services offering is designed to help Android developers deliver innovative commercial products to market quickly and efficiently. MontaVista’s Android Commercialization Services is designed to help designers realize the full potential of the Android framework while reducing the time and effort required to deliver an Android-based product.
By Paul Nickelsberg
Designers use Programmable Logic Controllers (PLCs) extensively for industrial control applications. A PLC features a general processor architecture, a general input / output architecture, a general mechanical architecture, and a general software development architecture. Industrial designer engineers, factory automation engineers, and industrial controls developers can meet their needs with generalized solutions. However, there are times when the generalized architecture of a PLC is unsuitable.
By Paul Nickelsberg
Many Original Equipment Manufacturers (OEM’s) struggle to continue shipping aging or obsolete electronic products. Electronic products designed five to ten years ago are still relevant in the marketplace. Often these venerable old products have gained particular acceptance amongst a select group of customers. In many cases these old products fulfill a need in a unique manner. Examples include: designs that are grandfathered into an application due to regulatory considerations; designs having unique form-fit-and-function; designs running special software; designs subject to contractual support and service requirements; designs in which a new contract stipulates delivery of older gear as part of a larger system offering. Any one or all of these reasons can lead an OEM to continue the production of electronic equipment well into its end of useful component life.