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2004-09-02 IR rolls out reference design for audio amplifier
IR disclosed the availability of its IRAUDAMP1 Class D audio amplifier reference design featuring the 200V-rated IR2011S high-speed gate driver IC.
2004-07-02 IR rolls out driver IC for Class D amps
International Rectifier unveiled a high- and low-side MOSFET driver IC for 100W to 1,000W Class D audio amplifier circuits.
2004-12-13 IR MOSFET improves Class D audio performance
International Rectifier recently released the IRF6665 DirectFET MOSFET for medium power Class D audio amplifiers.
2010-05-12 Integrated codecs, DACs improve eBook audio
TI launched audio codecs and DACs for eBooks, MIDs and portable navigation apps that support enhanced audio features to improve the consumer's listening experience
2010-01-08 Integrated Class-D audio amps deliver 600W
Audio bandwidth over 73kHz achieves HD media playback in Blu-ray home theater systems and other apps
2009-11-03 Integrated audio SoCs pack digital, analog I/Os
Conexant Systems Inc. has rolled out an audio SoC product line for embedded audio and voice applications
1999-06-29 High-efficiency audio amplification using class-D audio power amplifiers
The paper deals with audio amplifiers based on a Class-D topology, its advantages with portable audio applications and the potential problems these amplifiers incur when designing without linear audio amplifiers in PDAs, multimedia notebooks, and other portable battery operated equipment.
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
2006-08-03 Freescale Class D amp enables HiFi audio
Freescale has unveiled the new Symphony Class D amplifier the promises a high-fidelity system solution
2008-02-14 Flexible Class AB/D speaker driver suits portable apps
Wolfson Microelectronics has introduced the WM9001 mono 1W switchable Class AB/D speaker driver designed to deliver enhanced flexibility to portable applications system designers
2007-10-09 Flexible chipset targets 50-500W Class D audio amps
IR has unveiled a chipset that features the new IRS2092 integrated audio driver IC with protected PWM switching and IR's full complement of digital audio MOSFETs
2008-10-21 First digital audio amps set to invade car radios
STMicroelectronics has unveiled what it claims to be the first car audio amplifier with digital input
2010-08-05 Filterless Class D amps offer anticlipping
A family of filterless Class D amplifiers integrates anticlipping circuitry that avoids clipping by automatically reducing the amplifier's gain when the supply voltage in insufficient to deliver the desired output voltage
2006-11-03 Fairchild analog switches manage audio, USB sources
The FSA201 (USB 1.1; 12Mbps) and similar FSA221 (USB 2.0; 480Mbps) multimedia-oriented, analog DPDT switches from Fairchild Semiconductor are designed to pass both single-polarity USB signals as well as bipolar analog audio signals
2008-02-18 Enhance the audio experience in flat-panel TVs
Designers trying to achieve high-quality audio from flat-panel TVs are faced with several obstacles, but digital audio processors and amplifiers can be used to both compensate for problems and to improve the audio experience
2012-01-03 Employ audio amplifier for MP3 docking station
Know how to use the MAX98400 Class D audio amplifier in a stereo audio docking station application.
2010-10-01 EMI-shielding Class D amplifier targets portable audio systems
Silicon Labs introduces Class D amplifier with improved EMI shielding
2012-05-07 Efficient amplifier design for real-world audio
Know how to design amplifiers to maximize efficiency in real-world audio and not just test signals
2008-07-04 Driver streamlines Class-D audio amplifier performance
Supertex has introduced the MD7120, a high voltage, high speed, N-channel, full-bridge power MOSFET driver for use in Class-D audio amplifiers.
2013-11-04 Diodes intros compact 20W mono Class-D audio amp
PAM8320's low-impedance drive capability enables it to deliver 20W into a 4 bridge-tied-load speaker, aimed at small-enclosure speakers in wireless headphones, PCs and docking station products.
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
2009-01-16 Digital audio engine boasts improved quality, low cost
Intersil Corp. has started sampling the D2Audio's D2-41X58-LR family of devices that use the fourth generation digital audio engine (DAE-4), which delivers high quality sound at low cost
2006-06-21 Digital audio delay chip eases 'lip sync
TI's new digital audio delay device provides cost-effective synchronization of audio and video in a single integrated package
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
2007-10-18 Design Class D audio amps into portable applications (Part 2)
To maximize the benefits of using Class D amps, it is important to understand the fundamental difference in operation between Class D and Class AB amplifiers, since each amplifier technology requires different considerations when designing systems that incorporate audio.
2007-09-05 Design Class D audio amps into portable applications (Part 1)
To maximize the benefits of using Class D amps, it is important to understand the fundamental difference in operation between Class D and Class AB amplifiers, since each amplifier technology requires different considerations when designing systems that incorporate audio.
2006-01-13 Design and analysis of a basic class D amplifier
Deceptively complex, Class D amplifiers have a whole series of practical problems that must be overcome to achieve an acceptable result
2009-04-01 Design 101: Class D amplifiers
Class D audio amplification is fast becoming the solution of choice in consumer audio because of its ability to extend long battery life and compact dimensions.
2009-05-26 DAC/amp enhances audio quality in mobile apps
Wolfson Microelectronics has begun sampling a single-chip mono DAC and speaker amplifier targeted at improving audio quality in a range of devices such as mobile phones, conference speakerphones, digital radios and PNDs
2005-09-27 Control IC tailored for Class D audio apps up to 500W/channel
International Rectifier (IR) introduced a 200V control IC developed specifically for Class D audio applications up to 500W per channel.
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