1530 results found for Analog /Mixed Signal, displaying items 1 - 20
September 5, 2008
[Technology In The News] Wolfson DACs Enhance Blu-ray Player’s Audio
Pioneer Electronics has chosen the WM8740 high-performance stereo digital-to-analog converter (DAC) from Wolfson Microelectronics for use in Pioneer’s latest Blu-ray home theater disc player. Pioneer said the player (model BDP-LX71 in the EU and Japan and model BDP-05FD in North America) aims to outperform current desktop players and bring a true cinema experience to the home.
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ED News Staff
September 2, 2008
[Web Exclusive] Engineering A Hall Of Famer
Once a year we at Electronic Design ask our readers to stand up and recognize those who have made major contributions to the electronic engineering world. Our “2008 Electronic Design Hall of Fame” is primed to hoist another class of engineer superheroes onto your proverbial shoulders.
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John Arkontaky
August 27, 2008
[Designed In] BlueGenie Voice Interface Runs Bluetooth Headset
The newly introduced BlueAnt V1 Bluetooth headset uses Sensory Inc.’s BlueGenie Voice Interface to provide integrated voice control and high-quality speech synthesis technology. The V1 is the first Bluetooth headset with a true voice user interface (VUI) and the first stand-alone headset with Bluetooth version 2.1, according to the company.
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ED News Staff
August 28, 2008[Analog/Mixed-Signal Design] Using Delta-Sigma Can Be As Easy As ADC (Part 2)
In my previous column, I took a historical approach to delta-sigma modulation with the single-slope converter (May 8, p. 18, ED Online 18747). Jim Williams of Linear Tech responded, and he sent me a copy of a 1949 article by D.H. Wilkinson on single-slope analogto- digital converters (ADCs). “I’m aware of their obvious weaknesses, but the simplistic elegance of the...
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Dave Van Ess
August 28, 2008[Pease Porridge] What's All This Output Impedance Stuff, Anyhow? (Part 2)
When I present seminars, I often ask the members of the audience to hold up their hands if they think bipolar op amps have better gain and linearity than CMOS. I get a good majority of hands. But neither is bad! The good-old LM301A (well over 30 years old) has a good gain of 260,000 at no load, with just 75 µV p-p of gain error while its output is swinging 20 V p-p (Fig. 1). What happens ...
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Bob Pease
August 28, 2008[TechView: Analog & Power] Chips Help Supercaps Flash White LEDs Brighter For Higher-Res Photos
As digital-camera and phone-camera resolution increases, high-resolution image sensors require more light. Firstgeneration low-res camera phones provided barely adequate flash intensity for taking closeups of friends at parties. Even second-generation camera-phone flash is still unsuitable for image sensors with greater than 3-Mpixel resolution. And that’s just talking about still photography. Video requires in-phone camera lighting to provide...
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Don Tuite
August 21, 2008
[Technology In The News] Verilog-AMS Update Integrates With HDL Standard
The latest version of Accellera’s Verilog-Analog Mixed-Signal (AMS) standard, Verilog-AMS 2.3, unifies the standard’s previous version with IEEE Std. 1364-2005, the Verilog hardware description language (HDL) standard. Verilog-AMS 2.3 enables users to develop standard and tightly integrated Verilog-AMS modules, and allows EDA software tool developers to implement EDA tools without ambiguities in the language interpretation.
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ED News Staff
August 14, 2008[Leapfrog: First Look] RF/IF VGA Chip Does It All
According to Maxim Integrated Products, the MAX2065 fully programmable, multistate, analog and digital IF/RF variable-gain amplifier (VGA) aims to solve a number of automatic gain control (AGC) design problems in GSM/EDGE, CDMA, WCDMA, LTE, and WiMAX receiver applications (see the figure). But what does that mean? In explaining the thinking that went into the design of the...
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Don Tuite
August 14, 2008[TechView: Analog & Power] Set-Top Tuner Simplifies Design And Assembly
Tuners for set-top boxes, DVRs, PC TVtuner cards, and the like keep getting simpler to design in and less demanding to assemble into end products. Anadigics’ AIT1032 1-GHz double-conversion tuner implements upconverter, downconverter, voltage-controlled oscillator (VCO), synthesizer, RF and IF amplifier, and RF and IF gain control functions with a combination of gallium-arsenide (GaAs) and silicon technologies. It’s designed to avoid...
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Don Tuite
August 14, 2008[Ideas For Design] Driver Offers Proportional Solenoid Control Without PLC, Microcontroller
The proportional-control solenoids used in some industrial hydraulic systems are usually driven by microcontrollers or programmable logic controllers (PLCs). Such complex drivers typically require several different supply voltages for logic and control. (The purpose of proportional control is to move the solenoid plunger to an arbitrary position and leave it there.) A set-and-leave solenoid driver, however, should not require a costly PLC or the...
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Robert Brewster
, et al.
August 1, 2008
[ED Bookstore] Maxwell's Equations For Dummies?
One of the perks of being an Electronic Design editor is that we get lots of books that publishers would like us to review. The last time I went through the stack, A Student’s Guide to Maxwell’s Equations by Daniel Fleisch caught my eye. I settled down in the nearest chair and started to skim. Then I slowed down and started to read. Professor Fleisch is a great scientific communicator.
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Don Tuite
July 28, 2008
[Web Exclusive] Ham Radio's Rejuvenation
Hypothesis: Doing away with the code requirement last March has completed a rejuvenation of ham radio that was triggered by the World Trade Center attacks and Katrina. I’m looking for reader comments yea and nay.
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Don Tuite
July 24, 2008[Design FAQs] Digital Potentiometers
Download the full article as a .PDF, sponsored by Analog What are digital potentiometers, and how are they used? Digital potentiometers are integrated circuits that implement a resistive ladder and a digital means of addressing a particular tap on the ladder that corresponds to the wiper position of a mechanical potentiometer. They’re used to...
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Don Tuite
July 24, 2008[Pease Porridge] Bob's Mailbox
HI BOB, I am trying to build a test circuit that will produce a pulse current from a capacitor. My target is around 200 A at 100 ms. Is this possible? We have an instrument called a PVI that does the same only at lower current and at shorter duration, but I don’t know how it is being controlled. I hope you can give me advice or a basic control circuit that I can start working on. –ROMMEL C. VILLON HELLO, MR. VILLON, You...
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Bob Pease
July 15, 2008
[Technology In The News] Checklist Helps Pick Analog/M-S, RF Foundry
The Global Semiconductor Alliance’s Analog/Mixed-Signal/Radio Frequency (AMS/RF) Process Checklist Version 1.0 aims to make it easier for semiconductor companies to obtain information on an AMS/RF foundry process. It specifically targets the information need to evaluate a foundry’s AMS/RF process and determine if it addresses all of the company’s needs.
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ED News Staff
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