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Analog Design in the 21st Century: Challenges, Tools, and IC Advances

January 19, 2012 -- Let’s take a look into the analog sector’s crystal ball and see what’s coming to the rescue of analog designers to help them in the scope of variables they must manage, the extreme sensitivities to circuit constraints, and the quality of results necessary to make analog design as much of an art form as it is a science. ... read more

Teardown: The Power Inverter - From Sunlight to Power Grid

January 13, 2012 -- This teardown article will delve into the architectural design and components of a solar inverter card starting from the Solar panel DC inputs and working our way through the DC to AC conversion process to the AC output that is sent out to the power grid. We will show what features need to be implemented into such a design to meet various safety and other performance standards as well as stringent power company demands upon the signal that is put onto their grid. ... read more

The Prototype Comes of Age

January 5, 2012 -- Over the past few years, interest in prototyping electronic designs has grown. The rising size and complexity of systems and the limitations of using a single-purpose model—the hardware-design model—have fueled this growth. Engineers have traditionally modeled the hardware-design model at the RTL (register-transfer level) and then performed a number of refinement steps until that model becomes the implementation model. This single-purpose model has in the past found use only in hardware design, although engineers are now considering its use for other purposes. ... read more

Aligning Software Development Teams through Collaborative Design Management

December 22, 2011 -- After months of hard work, the team was finally ready to flip the switch on the new heads- up display on a vehicle prototype. The system would be supplied to a major automotive manufacturer and would make or break the company. The CEO and VP of engineering were present to see it working for the first time. All the subsystem tests were flawless and it should only be academic at this point. Just flip a switch and time to celebrate. But something was amiss and no display was seen. After several hours of debugging it was discovered that the display team missed a change in the angle of the windshield causing the display to not work. The supply contract was awarded to the competition and the team started working on their resumes. This fictional story is one that plays out all too often in developing today’s complex systems. ... read more

Applying the Interrupt Features of a MEMS Accelerometer

December 15, 2011 -- Most of the latest 3-axis digital-MEMS accelerometers on the market can generate interrupts for a number of applications. Some of the applications—such as screen rotation, wakeup, freefall, single click and double click recognition—have been very popular and implemented in various devices. ... read more

Optimize SDR Performance

December 15, 2011 -- The concept of software defined radio (SDR) has existed for many years. Consequently, you can find many descriptions of an SDR. A concise definition of an SDR is a radio in which some or all of the physical layer functions are software-defined. The physical layer function is the layer within the wireless protocol in which processing of RF, IF, or baseband signals (including channel coding) occurs. Many of today’s SDRs have part of the signal processing implemented in software. ... read more

Audio Converter Subsystem Design Challenges in the 21st Century

December 6, 2011 -- It seems to me that the plan of campaign for most engineers setting out to design an audio converter subsystem (by which I mean a stand-alone converter or that part of an equipment which deals with audio conversion) is as follows: First, choose a data converter device (by which I mean an ADC, DAC or CODEC chip) which will meet the project requirements - performance, channel count, cost, features etc. Then implement a design around it based on the manufacturer's application note plus whatever additional features, interfaces etc. are required. ... read more

The 2010 EDN DSP Directory

April 22, 2010 -- Digital-Signal processing is finding its way into everything. As such, it is difficult to do more than Scratch the surface of what is available in this constantly evolving marke. ... read more

Online since Monday, December 26, 2011

Define Drain-Current Conditions When Calculating Power for Multi-Core SoCs

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For more than three decades, Intel has developed technology enabling the computer and Internet revolution that has changed the world. Founded in 1968 to build semiconductor memory products, Intel introduced the world's first microprocessor in 1971. Today, Intel supplies the computing and communications industries with chips, boards, systems, and software building blocks that are the "ingredients" of computers, servers and networking and communications products. ... learn more

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