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2005-09-21 Zetex Acoustar technology used in Theta's digital audio amplifier
Zetex and Theta Digital announced that Zetex' Acoustar digital amplifier processing technology is being used to provide unprecedented sound fidelity in Theta's new digital audio amplifierthe Virtu PowerDAC
2003-11-07 Tripath amplifier to power Denon receiver
Japan-based Denon Ltd has selected Tripath Technology Inc.'s TA2022, Class-T audio amplifier for its latest AV receiver - the AVR-770SD
2005-06-03 TI power amplifier matches sound quality with high-quality image
The new digital-input Class-D audio power amplifier for flat panel displays from TI enables designers to develop products with sound quality that matches the display's high-quality image, while minimizing cost and component count
2007-10-17 TI intros next-generation digital amp power stages
TI introduced its next generation of high-performance digital amplifier power stages.
2005-02-08 TI digital technology supports MMC wireless audio module
Texas Instruments Inc. (TI)'s PurePath Digital technology has been selected by Mitsubishi Materials Corp. (MMC) for its latest power line communication (PLC), a module designed for transmitting audio signals, targeting wireless audio solutions for home theater applications and audio distribution networks
2003-12-17 TI digital amplifier powers Jamo, KiSS DVD receivers
Texas Instruments Inc. (TI) announced that Denmark-based companies Jamo and KiSS Technology A/S are shipping its digital audio amplifiers in their home theater systems
2005-01-14 TI digital amplifier chipset reduces DVD costs
TI announced a six-channel digital amplifier chipset that it claims offers the highest channel density in the industry.
2005-03-30 TI 'boosts' audio amplifier design
Texas Instruments announced that they gave audio amplifier design a boost by developing two high-performance digital amplifier power stages.
2005-10-12 SigmaTel acquires DDX digital amplifier technology
SigmaTel Inc., a mixed-signal multimedia semiconductor company, has acquired the Direct Digital Amplification (DDX) technology, design team and intellectual property from Apogee Technology Inc. for an undisclosed amount. DDX is a class-D digital amplifier technology that converts digital audio directly into power without the need for a DAC. The technology boasts of an all digital solution with a high efficiency level for small form factor designs and low power dissipation than average analog solutions
2003-06-27 Sharp LCD modules feature built-in terrestrial digital HDTV tuner
Sharp Corp. has introduced five models of its Aquos LCD TV receiver with the 37V- and 30V-inch models featuring a built-in terrestrial digital HDTV tuner that is claimed by the company as an industry's first
2002-05-10 Pulsus to supply Taekwang with amplifier ICs
Pulsus Technology Co. Ltd has signed a supply agreement with Taekwang Ind. Co. Ltd, where Pulsus will provide Taekwang with the Model PS9702B digital amplifier ICs.
2007-06-01 Performing SE design with digital audio amps
A single-ended operation is a common mode where the digital amp is used. This article discusses the basics of single-ended design and the engineering trade-offs involved
2003-06-20 Macnica, Tripath collaborate on amplifier module
Macnica Inc. and Tripath Technology Inc. have agreed to jointly develop an 8-channel digital amplifier that will be integrated into a single module.
2004-12-01 Hearing, seeing the sound of change: From analog to digital audio amplifiers
Digital amplifier systems keep audio signal in the digital domain virtually all the way to the speaker; analog-based systems convert the signal to analog early in the process.
2005-07-18 Digital feedback pulls class D into high-end audio
Earlier this year, Zetex Semiconductors plc announced the development of an amplifier technology that it claims is so different that it warrants the creation of its own new class-one that Zetex calls "class Z
2006-08-11 Digital audio amplification: a new approach
Now that virtually all audio source data is digital, we are compelled to re-examine the basic principals behind conventional amplification to see if it is adequate for today's digital source material
2005-07-06 Digital amplifier board jams audiophile quality in a tiny package
Flying Mole Electronics' latest digital amplifier board is said to be the first of its kind to mount an individual power supply to two 30W channels of audiophile quality soundall in about the size of a pack of cigarettes
2007-11-14 Digital amp puts home-theater sound in TV speakers
D2Audio has announced a digital amplifier IC for TV that it says will enable speakers inside flat-panel TVs to produce home theater sound without adding any cost.
2008-12-10 Digital amp for flat-screen TVs unveiled
Renesas Technology Europe has announced the R2J15116FP, a compact, high-performance digital amplifier supporting IIS*1 digital audio signal input with a built-in 24bit audio DSP. It is intended for use in thin flat-screen TVs using LCD or PDPs.
2006-10-02 Design tricks for digital amps
Kevin Belnap gives design tips on how to avoid common design problems with an SMPS and digital amplifier.
2004-01-12 Crest Audio multichannel digital amps to use Actel FPGAs
Professional audio systems manufacturer Crest Audio has selected Actel's APA075 ProASICPLUS FPGA devices for its new line of advanced multichannel amps.
2002-03-20 Cirrus' digital entertainment bet may pay off
It may be too soon to tell whether venerable Cirrus Logic Inc. can ride the digital consumer wave to another crest of prosperity. But early reviews of CEO David French's bold move appear for the most part to favor Cirrus' chances
2004-07-15 Cirrus enters digital amplifier market
Cirrus Logic Inc. entered the market for Class D digital amplifier controllers on Monday (July 12, 2004), aiming at the high-end of the audio/video (A/V) recorder market as well as recordable DVD players with built-in amplifiers and captive speakers.
2004-11-22 Chipset platform's DSP performs all digital audio, video processing
Cirrus Logic's new chipset platform merges its Class D-based digital amplifier IC together with its reference platform of ICs and software for DVD recorder products.
2006-04-13 Amplifier reference design targets Class-D products
Cirrus Logic launched a quad amplifier and a 2.1-channel Class-D amplifier reference design for DTVs and home theater receivers
2002-11-18 Zetex amplifier handles 192kHz digital audio signals
Zetex's Acoustar ZXCW8100 two-channel digital audio amplifier controller handles digital audio signals sampled at up to 192kHz via 32-bit data processing.
2005-01-07 Wireless transmitter/amplifier works without audio degradation
Amphony's 5.8GHz digital wireless audio transmitter/amplifiers are capable of transmitting audio to loudspeakers wirelessly and without any audio degradation
2007-03-20 What is digital power
The advantages of digital power control make it a suitable approach for power supply design and board mounted power supplies in particular
2006-06-02 VFA, CFA, Bipolar or CMOS - Which high-speed amplifier is best for your low-noise application
Both current- and voltage-feedback amplifier topologies are popular choices for high-speed applications. An understanding of the differences in circuit topology along with basic noise and distortion characteristics is crucial for optimal product selection
2001-06-11 Using Xicor digitally controlled potentiometers in commercial RF power amplifier applications
This application note describes how to implement Xicor's digitally controlled potentiometers in commercial RF power amplifier applications
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