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2003-07-31 Headphone amplifier suits portable audio systems
The Boomer stereo headphone amplifier from National Semiconductor is designed for use in apps that require a single 1.5V battery.
2003-01-02 Fairchild headphone amplifier draws 0.1mA shutdown current
The FAN7005 stereo headphone amplifier draws 2.2mA during normal operation and 0.1mA during shutdown, making them suitable for use in desktop PCs.
2009-04-03 DirectPath tech powers Class-G headphone amps
Texas Instruments Inc. has released two new 25mW Class-G stereo headphone amplifiers that include TI's DirectPath technology, which removes the need for large DC-blocking capacitors to improve low-frequency audio fidelity.
2009-12-11 Codec integrates Class W headphone, line drivers
Wolfson's ultralow-power codec with Class W headphone and line drivers extends playback time in portable applications, such as media players, headsets, voice recorders and multimedia phones.
2011-01-31 Class-G headphone amp delivers 100dB SNR at 6.5mW
Texas Instruments's TLV320DAC3202 Class-G headphone amplifier integrates DAC and power rails to deliver audio playback quality and extend battery life in moderately priced phones and other portable CE.
2010-03-30 Class G headphone amp extends listening time
STMicroelectronics is rolling out a stereo headphone amplifier IC that achieves high efficiency enabling listeners to enjoy high-quality sound for longer between battery charges.
2006-05-24 Capacitor-less headphone amps target portable apps
National Semiconductor introduced headphone amplifiers that eliminate external blocking capacitors for portable applications.
2006-04-06 Audio codec integrates capless headphone amplifier
AKM Semiconductor released a low-power audio codec with an integrated capless headphone amplifier.
2006-11-09 Audio chip adds headphone, loudspeaker to portables
STMicroelectronics has introduced a compact stereo headphone and loudspeaker driver chip, with an I?C bus control interface, for mobile phones, PDAs and laptop computers.
2006-05-16 Audio amplifiers detect headphone input
Maxim's audio amplifiers combine a stereo 3W bridge-tied load audio amplifier, stereo headphone amp, headphone sensing, and a 2:1 input multiplexer in a thin TQFN package.
2010-05-31 ANC ICs enhance mobile headphone listening
austriamicrosystems is rolling out a duo of active noise canceling (ANC) ICs for mobile accessories such as headphones.
2016-05-05 Will Apple mark the end of 3.5mm headphones?
Since Apple's already navigated the 30-pin to Lightning transition, what's the incremental motivation to additionally drop the legacy headphone jack connection?
2007-09-21 Tiny Class D audio subsystem touts high output power
Maxim Integrated Products has introduced a Class D audio subsystem that combines a mono Class D amplifier, a DirectDrive headphone amplifier and a DirectDrive mono receiver amplifier.
2010-11-30 Stereo audio amplifier improves listening experience, other features
STMicroelectronics stereo audio amplifier offers power- and space-saving features
2003-11-21 Sanyo LSI incorporates Dolby functions
Sanyo Electric Co. Ltd has developed a single-chip LSI that incorporates all the functions required in the Dolby Virtual Speaker System.
2005-07-25 Reference design for Bluetooth headsets cuts costs by 20%
CSR plc announced the availability of a new reference design for Bluetooth stereo headphones that offers the lowest ever total bill of materials cost for this type of product.
2004-05-17 Near-field magnetic comms emerges
What makes NFMC a compelling alternative to RF is the unique attenuation property of the magnetic field.
2006-08-17 National unveils 'smallest' Boomer Class AB amps
National Semiconductor has introduced two Boomer Class AB amplifiers in a 0.4mm-pitch package, said to be the world's smallest micro SMD package.
2006-06-02 ISL84684ii CSP to DIP converter board with mounted IC
The ISL84684ii CSP to DIP converter board was design to provide customer's with a quick and easy method to handle and evaluate the ISL84684ii dual SPDT switch.
2005-10-20 Freescale DSP brings Dolby capabilities to consumer, auto apps
Freescale Semiconductor introduced an advanced cost-effective digital signal processor (DSP) that features Dolby Digital, Dolby Virtual Speaker and Dolby Headphone technology functionality.
2007-06-01 DirectDrive delivers better audio quality
DirectDrive is a patented architecture that eliminates the DC-blocking capacitor required on the output of traditional headphone amplifiers. This article describes the DirectDrive approach, how it works and its advantages.
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.
2002-11-08 Chia Ping mylar speaker measures 9.3mm(?)
Chia Ping's CP-091NTG mylar speaker measures 9.3mm(?) and is suitable for use in headphones, personal digital voice recorders, and other audio apps.
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.
2010-08-06 ASIC boasts digital ambient noise cancellation
Wolfson Microelectronics plc has started to sample what it claims is the industry's first commercially available digital ambient noise canceling (ANC) ASIC.
2014-05-14 Apple's Beats buy signals bolstered wearables push
The potential acquisition, said to be worth $3.2 billion, is indicative of how Apple is likely to do a lot more with headsets and wearables, possibly around health, according to Analysys Mason.
2011-07-21 Amplifiers offer louder audio, longer battery life
The FAB1200 and FAB2200 mobile audio ICs enable handsets, tablets/MIDs and other portable audio applications to sound louder while reducing overall systems cost, says Fairchild.
2002-12-02 Amplifier eliminates dc-blocking capacitors, resistors
The MAX4411 headphone amplifier combines the Maxim's stereo DirectDrive technology and a fixed-gain configuration.
2009-04-16 Amp doubles playback time in portable apps
National Semiconductor has launched a new PowerWise stereo headphone amplifier that draws only 0.9mA of quiescent current to double the audio playback time of smart phones, full-featured mobile phones and portable music players.
2004-04-02 Yuasa NiMH batteries rated at 0.8Ah
The AAAC800 rechargeable NiMh battery from Yuasa (Tianjin) Technology is designed for use in communications equipment, CD players and headphone stereos.
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