Novel audio topology aims to increase efficiency

Have you ever heard of an audio amplifier operating in Class-DG? Neither had I until I came across an unusual amplifier from Maxim, that slipped below Electronics Weekly’s radar when it first came out. Class-D audio amplifiers (switching audio amplifiers) have done a lot to increase efficiency and cut heat compared with traditional analogue Class-AB amplifiers, without sacrificing much audio quality when it ...

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Global Unichip delivers ASIC with 2GHz DDR2/3 interface on 40nm LP process

Global Unichip, TSMC’s design arm, is manufacturing a consumer electronic applications processor ASIC with a DDR2/3 interface delivering 2.0GHz Mbps from its 40nm low power (LP) process. Key steps were designing to the performance sweet spot of GUC’s DDR2/3 high speed interface IP, a condensed package substrate, and a PCB through a precise DDR system simulation flow and measurement correlation. The consumer ...

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Silicon Labs adds to capacitive sensing MCUs

Silicon Labs is sampling capacitive sensing microcontrollers (MCUs) for human-machine interfaces (HMI). The C8051F97x MCU is for Internet of Things, home/building automation, consumer and industrial markets. It targets battery-powered and capacitive touch sensing applications for handheld industrial devices, toys, gaming machines and remote controls, as well as touch-panel switch replacements for white good ...

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Plessey prepares for LED lighting push

Plessey Semiconductor seems to be gearing up for increased production of its GaN-on-silicon LED devices. Plymouth-based Plessey has upgraded its production facility by buying the latest Temescal UEFC-4900 material deposition system from Ferrotec. Plessey manufactures LEDs on 6-inch wafers using a GaN-on-silicon process which it claims is cost-effective because it uses standard semiconductor manufacturing te ...

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AMD G-Series processors get more security

AMD has announced its latest x86 AMD Embedded G-Series processor and system-on-chip (SoC) devices which are being used in HP thin clients for healthcare, finance, education and retail. Advantech will also design the SoC processor into industrial boards for rugged environments. The processors have integrated security with enterprise-class error-correction code (ECC) memory support, dual- and quad-core varian ...

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Lightfair: Temp-tuneable LED light engine dims to 0.5%

At LightFair, LED Engin will demonstrate a 2200 lm light engine that has halogen-style dimming from 1,600K to 3,000K as well as colour temperature (CCT) tuning between 2,100K and 4,300K. Called LuxiTune Generation 3.0 and aimed at replacing 120W halogen lamps, “both tuning curves track the black body curve closely and light intensity [flux] is adjustable from 100% to less than 0.5%”, said LED Engin. Includi ...

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FPGAs can clean up video picture noise

Using High-Level Synthesis, software-based algorithms that have data-dependent execution time can be easily accelerated in hardware, with deterministic results, writes Daniele Bagni  Video is rapidly becoming more significant in embedded systems, where the information gathered can be analysed, recorded or otherwise used for real-time control. As a result, the demand for higher quality video content is also ...

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How to make slow software run quicker

Have you ever written some software that, despite your best coding efforts, didn’t run as fast as desired? I have, writes David C. Black, Senior Member of Technical Staff at Doulos. Have you thought, “If only there were an easy way to put some of the code into multiple custom processors or custom hardware that wasn’t so expensive”? After all, your application is one of many, and custom hardware takes time a ...

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Imagination works with Oracle on Java for MIPS

Imagination Technologies has said it is working with Oracle to optimise Java for the processor firm’s MIPS CPU architecture to support new web-based and enterprise content, and applications. Oracle and Imagination are working together to bring the Oracle JDK (Java Development Kit), Oracle Java SE Embedded, and other product support to MIPS32 and MIPS64 systems. “With broad Java support for MIPS32 and MIPS64 ...

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Honeywell changes magnetic sensor design, forever

Honeywell Sensing and Control has designed a position sensor IC which combines the sensitivity of an anisotropic magnetoresistive (AMR) sensor with the low power operation of a Reed switch. The range of magnetoresistive sensor ICs is called Nanopower reflecting a typical power consumption of 360nA. This is a ten-fold reduction in power consumption on previous AMR position sensors. Magnetic sensitivity for t ...

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