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2004-03-16 Software becomes manager of power
The biggest roadblock to continuing integration of highly mobile devices is the analog and simple digital functions necessary to support the SoC and RF components.
2011-11-22 Signal chain basics: Save power, reduce heat with power supply volume control
Find out how power supply volume control can reduce dissipation and increase run time, without compromising performance
2012-04-24 Signal chain basics: How 20W amplifier can ruin a speaker system
Know the causes of this surprisingly common problem, and how to work around them.
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
2008-11-20 SCART saves power in STBs, A/V receivers
Maxim Integrated Products introduces the MAX9597, a fully integrated, +3.3V SCART solution for set-top boxes and A/V receivers that have one SCART connector.
2004-01-14 Samsung selects Tripath audio amp for flat panel products
Samsung Electronics Co. Ltd has chosen Tripath Technology Inc.'s TA2024, Class-T audio amplifier to power additional Samsung flat panel products, such as LCD and Plasma TV receivers, and LCD monitors.
2006-12-01 Reduce RF noise effects in headphone amplifier
Audio amps are being increasingly exposed to strong RF electric fields. Many are not designed with high-frequency RF interference in mind and thus can inadvertently demodulate information from an RF carrier into the audio band. There are several ways to minimize RF noise effects
2010-10-20 Power-efficient stereo audio codec for mobile Internet devices launched
Conexant offers new power-efficient stereo audio codec
2008-10-16 Power struggles: slashing power use in mobile audio
Portable media players and multimedia handsets are becoming more capable, in terms of their range and complexity of the functions provided to the consumers.
2008-01-17 Portable audio codec 'first' to integrate FM transmitter
Leadis Technology's latest audio codecs with FM transmitters and its Gmax audio amplifier technology, maintains best-in-class SNR and extends battery life in portable audio apps
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.
2006-02-02 PAM unveils new Class-D audio amps
Power Analog Microelectronics announced the introduction of six Class-D audio amplifiers, including the new 2W family, and the expansion of its 1.2 W product offerings
2005-01-11 Output audio transistors eliminate thermal lag, bias
ON Semi's new family of output audio transistors comes with internal bias control that eliminate amplifier warm-up period
2004-04-28 ON Semi audio amplifier improves sound quality
The company has introduced the NCP2809 stereo audio amplifier that improves sound quality and reduces part count in space-restricted wireless apps
2002-12-23 ON Semi audio amplifier fits mobile phones, PDAs
The NCP2890 Class AB audio amplifier from ON Semiconductor is available in a Micro-8 (14.72mm?) and a Microbump-9 (2.25mm?) package
2003-11-24 NSC cellphone audio subsystem offers 3D sound
National Semiconductor Corp. has introduced a Boomer audio subsystem for cellphones that integrates amps, volume and mixing controls and 3D sound in a miniature micro SMD package
2007-02-08 National intros new Boomer class D audio amp
National Semiconductor has introduced the first product in its new line of Boomer class D audio amplifiers with integrated converter technology that eliminates the need for an external boost converter
2004-11-12 National introduces WEBENCH environment for audio amplifiers
National Semiconductor Corp. has expanded its WEBENCH online design environment to include audio amplifiers, providing the industry's first online tool created to speed the selection, design and evaluation of many types of audio amplifiers for a variety of applications
2004-11-05 National expands feature sets on audio subsystems
National launched two boomer audio subsystems that provide a wide variety of features for cellular phones and portable apps
2010-06-24 National boosts analog audio portfolio via GTronix
National Semiconductor Corp. has acquired the technology of GTronix, a fabless semiconductor specializing in programmable and adaptive analog sensory processing technology.
2004-11-10 National Boomer audio subsystems suit portable apps
National launched two Boomer audio subsystems that provide a variety of features for cellular phones and portable apps
2007-09-14 Multiphase DC/DC controller suits power audio amps
Linear Technology had unveiled the LTC3811 dual output synchronous step-down DC/DC controller with multiphase operation, differential output voltage sensing and integrated PLL synchronization.
2011-12-21 Microphone combines pre-amplifier, LDO, ADC
Fairchild's FAN3850A and FAN3850T convert electret condenser microphone outputs to digital pulse density modulation data streams.
2002-01-11 Micronas offers secure audio platform solutions
In combination with a Zenon controller, the SAC 3590 audio chip enables system manufacturers to realize cost-effective audio players, which are compliant to the latest security requirements
2010-04-28 MEMS mics deliver high-fidelity audio playback
ADI offers MEMS mics that enable advanced audio functions including high-fidelity A/V playback and voice recognition with built-in wind noise suppression
2016-02-17 MCUs from ST promise notable performance, power savings
The STM32L4 series achieves 176.70 ULPMark-CP, vaulting over the scores of other major brands, without the help of a buck converter that adds external components such as a coil and capacitor.
2002-07-08 Maxim headphone amplifier eliminates dc-blocking capacitors
Employing an architecture that produces a ground-referenced output from a single supply, the MAX4410 DirectDrive stereo headphone amplifier eliminates the need for two bulky dc-blocking capacitors
2004-12-01 Maxim audio DAC with built-in DirectDrive headphone amplifiers
Maxim Integrated Products expanded its line of audio integrated circuits with the release of the MAX9850 stereo audio DAC
2004-03-29 Maxim audio amps eliminate bulk heatsink designs
The 15W, mono, filterless, Class-D audio amplifier from Maxim Integrated Products eliminates the need for bulky, expensive heatsink designs
2002-08-13 Maxim audio amps deliver up to 1.4W
The MAX4364 bridged audio amplifier from Maxim Integrated Products can deliver 1.4W from a single 5V supply and 0.5W from a 3V supply into an 8-ohm load
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