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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
2008-03-12 WLED driver integrates audio amp, LDOs
Maxim Integrated Products has introduced the MAX8821, said to be the only WLED driver to combine a highly efficient, negative charge pump with a fully differential, bridged audio amplifier and two low-noise, LDO current regulators
2008-03-03 Maximize Class-D driver benefits
Notes Alex Mihalka of International Rectifier, Class-D audio amplification circuits offer high efficiency and small size compared to the more prevalent linear Class-AB topology. Solid-state drivers that deliver 1A or more gate-drive current with 100V capability for driving half-bridge topologies to power levels of 500W into 8 ensure quality audio
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.
2007-07-11 IR unrolls Class D audio amp reference design
International Rectifier has introduced the IRAUDAMP4 Class D audio power amp reference design
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
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
2009-04-03 Audio subsystems aim to simplify design
National Semiconductor Corp. has expanded its line of low-power Boomer Class D audio subsystems with two devicesthe LM49352 mixed-signal audio subsystem and LM49151 analog subsystemaimed at simplifying portable product design
2010-06-11 Audio ICs simplify signal management in mobile apps
Cirrus Logic Inc. is rolling out a pair of audio ICs that improve audio quality, simplify signal management and reduce EMI in mobile consumer electronics applications
2010-02-15 Audio amps deliver high-quality sound at low cost
Wolfson Microelectronics has developed two cost-effective audio amplifiers that provide high quality audio and low power consumption for optimal audio playback time
2008-02-20 2Vrms audio line driver operates from 3.3V supply
TI's 2Vrms DirectPath audio line driver provides customers with the flexibility to operate from a 3.3V power supply to reduce total system cost and to adjust input gain levels to optimize performance in TV peripherals
2009-06-25 Stereo codec packs Class D speaker driver
Wolfson Microelectronics has releases the second device in its stereo chip line is being promoted as the industry's lowest power codec.
2007-12-14 Class-D driver IP meets advanced SoC requirements
Chipidea has released a Class-D audio driver IP specifically designed for SoC devices manufactured in 65nm process and below
2007-12-19 Class D audio subsystems render 3D stereo sound
Maxim Integrated Products has introduced the MAX9775/MAX9776 highly efficient Class D audio subsystems that provide 3D stereo enhancement
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
2008-09-23 IR rolls Class D audio power amplifier reference design
IR has introduced the IRAUDAMP7 reference design for Class D audio amplifiers above 25W per channel including home theatre applications, musical instruments and car entertainment
2010-10-04 Maxim undergoes a makeover
Maxim president and chief executive Tunc Doluca presented “Maxim 2.0?, a makeover of the erstwhile analog chip-focused business. The company has shaken up its corporate culture and expanded its range.
2009-11-25 LED drivers improve energy efficiency in LCD TVs
Intelligent control of LED current sinks in direct/matrix backlight applications gives truer blacks and improved contrast.
2006-09-07 Stereo codecs extend battery life in portable devices
TI said its new audio codecs extends battery life by lowering power consumption in portable devices like digital still cameras and portable media players
2010-07-30 Low-power mobile sound system has noise suppression
The LM49155 analog audio subsystem from National Semiconductor has announced features integrated noise reduction for mobile phones and other portable handheld applications
2007-11-20 Leadis exec discusses class G technology
Leadis Technology's Jim Hauer, senior director for new business development, recently spoke with Vivek Nanda, EE Times-India editor, about the company's new class-G amplifier technology and product road map
2004-07-20 AKM modulator generates 110dB SNR
Asahi Kasei Microsystems released a Class-D two channel modulator that can generate 110dB signal-to-noise ratio
2013-05-16 Exploring the gallium nitride technology
Discover why GaN technology is touted to displace silicon MOSFET devices.
2010-03-24 Power management IC packs Class G codec
Dialog Semiconductor plc has is rolling out the DA9057system-level power management IC that includes a Class G codec.
2006-06-27 Portable speakers roll for the iPod
Logitech's mm50 portable speakers, the first integrated iPod dock from the company, is examined in this article.
2010-07-28 MCU-equipped PMIC targets portable consumer apps
Integrated Device Technology Inc. launches a CPU-equipped power management IC (PMIC) that can manage all on-chip resources and offload general housekeeping and I/O tasks from the application processor.
2007-03-14 LED backlight to replace CCFL in large-screen LCD TVs
Power Analog Microelectronics suggests that replacing CCFL backlight with LED backlight in LCD TVs will address the issue of power consumption in China.
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