High-accuracy AC current sensors save board space Product News 7/30/2007 Post a comment Silicon Laboratories has introduced the Si8500 family of low-loss, high-accuracy AC current sensors for a wide range of power applications. The Si8500 integrates the functional equivalent of a current transformer circuit into a 4 x 4 x 1-mm QFN package.
ESD protection for HDMI 1.3 Design How-To 7/27/2007 Post a comment The higher the data speed and the more advanced the process technology, the harder it is to protect the IC from over-voltage stresses caused by ESD or CDE. As a result, HDMI designs often include additional transient protection to ensure the IC's reliability. Adding external transient protection for HDMI is difficult, however, due to HDMI's sensitivity to signal integrity. Each additional device added to the signal line implies extra parasitic elements that can affect signal transmission.
Touch screen capability added to PSoC mixed-signal arrays Design How-To 7/25/2007 Post a comment For applications ranging from mobile handsets to white goods, Cypress has developed a flexible touch screen capability for integration with three of its PSoC mixed-signal arrays with on-chip controllerthe CY8C20x34, CY8C21x34 and CY8C24x94 device families, all of which are in full production.
Dolby Volume: An innovative global solution to television's inconsistent volume issues Design How-To 7/25/2007 1 comment Volume level inconsistencies have been a serious, global problem in television for many years. Television audiences around the world encounter vast differences in the perceived volume level of content each and every day. Whether it is a simple channel change or switching sources such as from a DVD to TV, television viewers are frequently required to make volume adjustments via their remote control.
DC/DC controller draws 30-microamps in automotive systems Product News 7/24/2007 Post a comment Check out Linear Technology's ultra-low quiescent current, two-phase dual output synchronous step-down DC/DC controller that draws only 30µA when one output is active and only 50µA when both outputs are active, making it well-suited for automotive applications.
24-bit ADCs address precision industrial apps Product News 7/20/2007 Post a comment TI's 4-channel ADS1274 and 8-channel ADS1278 analog-to-digital converters (ADCs) target demanding multi-channel signal acquisition applications such as vibration analysis, medical monitoring, industrial and energy metering equipment.
Silicon Line rolls ultra-low power VCSEL driver Design How-To 7/19/2007 Post a comment With its SL82020 laser driver chip, German startup Silicon Line GmbH targets novel applications in which fiber optical links replace copper lines within computing devices. The company claims that the chip sets records for ultra-low power consumption.
Research center to fathom terahertz applications Product News 7/19/2007 Post a comment German research group Leibniz-Gemeinschaft has launched a terahertz research center. The institute, based in Braunschweig, will explore technology and applications for terahertz radiation with emphasis on semiconductor material research.
Basics of ADCs and DACs, part 1 Design How-To 7/19/2007 Post a comment Part 1 of this 5-part series introduces the concept of sampling and explains Nyquist's sampling criteria. It also shows how to use undersampling and antialiasing filters.
Vishay rolls out ChipFET power MOSFET line Product News 7/18/2007 Post a comment Vishay Siliconix PowerPAK ChipFET power MOSFETs replace TSOP-6 devices with 75% lower thermal resistance in 33% smaller footprint, and offer the same 3-W maximum power dissipation as larger SO-8 devices, but provide greater thermal efficiency.
ADC delivers fast sampling Product News 7/18/2007 Post a comment Maxim Integrated Products has unveiled its high performance 8-bit, 2.2 Gsps analog-to-digital converter (ADC), aimed at broadband communication receivers, radar systems and high-end instrumentation.
Blog Make a Frequency Plan Tom Burke 17 comments When designing a printed circuit board, you should develop a frequency plan, something that can be easily overlooked. A frequency plan should be one of your first steps ...