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2009-10-05 Class D audio amp boasts 1W constant power
The constant-power filterless Class D audio amplifier delivers
2006-01-13 Class D amps tout true fidelity
JAM Technologies is setting its sights on digital TVs with its latest True Fidelity digital-input stereo amplifiers.
2008-04-16 Class D amps liven up audio in flat-panels
The latest developments in audio power amplifier echnology are increasing the sound quality in flat-panel displays to match the superb image quality
2008-04-29 Class D amps claim 'lowest' solution cost
Maxim Integrated Products has introduced the MAX9736A/B, a family of versatile single-supply, filterless Class D speaker amplifiers, which provide high-performance, thermally efficient amplifier solutions at the lowest solution cost
2007-08-23 Class D Amplifiers: Fundamentals of operation and recent developments
This article discusses the advantages of Class D filters and the recent improvements that can not only reduce board space, but can also significantly reduce the cost of many portable/compact systems
2009-09-11 Class D amp saves board space, cost
STMicroelectronics' 50W+50W stereo Class D amplifier IC delivers audiophile sound quality
2010-04-08 Class D amp improves sound quality in portable apps
Analog Devices Inc. is rolling out a pair of Class D audio amplifiers for smart phones, GPS units and other handheld electronics where premium sound quality offers a major competitive advantage.
2006-10-17 Class D amp delivers 15W per channel for LCD TVs
Microsemi's LX1725 class D amplifier delivers 15W per channel, or a single channel output of 30W, for LCD TVs and home theaters
2008-02-18 Class AB/D speaker driver fits space-constrained apps
Wolfson Microelectronics has introduced the WM9001 mono 1W switchable Class AB/D speaker driver in a low-profile 3mm x 3mm QFN-16 or 1.64mm x 1.64mm CSP package, making it suitable for space-constrained applications
2007-02-01 Class AB amps retain place in audio design
A quick look at many new low-power speaker amplifiers on the market highlights the move to Class D audio performance. But when it comes to low cost, distortion and noise, Class AB still has the edge. The differential input/differential output amplifier is similar to the conventional single-ended output op amp in terms of the equations that determine its gain.
2012-08-10 Cirrus Logic to overtake Dialog in audio chips race
Adding power management functions to its ICs could land Cirrus a bigger slice in Apple's design sockets pie.
2013-05-08 Choosing the right audio amp topology
Here's an examination of the most important characteristics of each class of audio amplifier available today
2011-10-04 Choosing audio amplifiers for portable devices
Read about the various means of improving audio in mobile phone and portable audio systems, many of which use a processor with integrated analog audio outputs
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
2008-12-05 Chip fuses analog switch, Class D amp in single casing
By consolidating an analog switch achieving -80dB isolation and a 1.6W class D amplifier in a single package, the TS4961T simplifies board design and saves space in cellphones and personal media players
2005-06-13 Cellphone sound chip from Yamaha includes class-D amplifier
Yamaha recently started shipping its AudioEngine mobile phone sound chip that features the company's proprietary hybrid synthesizer, a high-quality sound processor, and an energy-saving Class-D amplifier
2008-03-31 Bringing multizone digital audio to life
Rallying around an emphasis on software upgradability and wireless connectivity and control, Sonos Inc. developed a multi-zone digital music system with a wireless, full-color LCD screen controller that lets users play all their digital music.
2006-06-21 Boomer audio subsystems offer RF suppression
Two new Boomer audio subsystems from National promise to integrate RF suppression tech to improve noise performance in portable apps
2013-05-31 Bluetooth audio module bolsters speaker battery life
HiWave Audio's DyadBA3 modules come equipped with the HiAS2002 boost amplifier, delivering two channels of 15W burst power output into 8ohm speaker drive units
2014-09-03 Automotive-grade audio amp aimed at eCall, telematics apps
By using the TAS5421-Q1, TI said designers can remove multiple discrete components, shorten automotive-grade diagnostic design and extend battery back-up power.
2010-02-24 Audio subsystems integrate Class D, H amps
Maxim Integrated released mono audio subsystems that combine Class D mono speaker amplifier with distortion limiter; DirectDrive II Class H stereo amplifier; and ultralow-noise, analog bypass switch.
2011-08-02 Audio subsystem reduces board space
IDT's audio subsystem with integrated clock IC boasts space and cost efficiency for tablets, game consoles, personal navigation devices and portable projectors
2006-01-11 Audio subsystem integrates smart phone, VoIP phone functions
The audio subsystem with a mono Class D speaker driver from National integrates all the analog and digital audio functions needed for smart phones and VoIP phones.
2008-08-15 Audio subsystem improves capacity for handsets
Texas Instruments has released an analog-input audio subsystem that combines its field-proven stereo Class-D power amplifier and stereo DirectPath headphone amplifier into one package.
2011-08-09 Audio SoC ICs optimised for flat panel TVs
STMicroelectronics has released the STA381BW and STA381BWS digital-audio system-on-chip ICs for home entertainment applications
2007-01-12 Audio processors improve flat-panel TV sound
ST's new TV sound processor chips provide high-end audio algorithms for supporting mainstream flat-panel TVs and U.S., European and Asian analog broadcast standards
2008-01-10 Audio processor with Class D codec promises high flexibility
ST's STA331 audio processor, with integrated, high-efficiency Class D codec, offers a very high level of flexibility that enables it to be used across the full range of consumer audio products.
2006-06-29 Audio processor integrates DSP, converters
Micronas announced it has developed a cost-effective and highly integrated audio SoC that combines a DSP with digital and analog audio interfaces
2012-01-19 Audio processor incorporates MEMS microphones
ST's Smart Voice device integrates an acoustic processing core with a tunable 10-band equalizer, a peak limiter, and gain and volume controls for mobile devices.
2008-03-10 Audio processor delivers high fidelity sound
The TAS3308 audio SoC from TI offers high processing power for audio equipment manufacturers to create demanding applications such as DTV audio subsystems and other consumer audio electronics
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