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2012-04-20 HiWave outs Bluetooth wireless speaker design
The DyadBA3 reference design that provides 2 x 13W burst power and runs for 30 hours from its 2200mAh Li-ion battery.
2000-12-07 Guidelines for the speaker in a line-powered speakerphone
This application note is intended to provide some guidelines in selecting the optimum speaker impedance, drive configuration, and the mounting within the speakerphone enclosure.
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.
2002-12-18 Fairchild amp delivers 1W of continuous speaker power
The FAN2703 CMOS power amplifier delivers 1W of continuous rms power into an 8-ohm speaker at 5V.
2005-06-15 Designs better be holistic, says DAC keynote speaker
The electronics industry is in danger of stagnating unless innovators take a holistic approach to design in everything from systems architecture to corporate alliances, according to IBM fellow Bernard Meyerson.
2003-02-21 DB mylar speaker integrates dynamic receiver
DB Products Ltd has announced a mylar speaker that integrates a dynamic speaker and is suitable for use in mobile phones and hands-free systems.
2007-07-02 Codec with speaker, video buffer is small at 4-by-4mm
Wolfson Microelectronics launches the WM8941, a high-performance low-power codec with an integrated video buffer and speaker driver to enhance the performance of digital still and video cameras.
2006-02-15 Codec integrates Class-D speaker driver
The new WM8960 codec from Wolfson is the company's first 24bit codec that integrates a filterless Class-D speaker driver.
2007-04-19 Class G speaker amp loads more output power
Maxim's MAX9730 speaker amplifier features Class G architecture and integrated charge-pump power supply that enable this device to deliver two times more output power than conventional Class AB or Class D speaker amplifiers provide from a Li-ion battery.
2008-07-23 Class D speaker amplifier minimizes design cost, space
Maxim introduces the MAX9744, the industry's first 20W stereo Class D speaker amplifier, which offers a filterless modulation mode that eliminates the large LC filters required by traditional amplifiers reducing design cost and space.
2007-11-08 Class D speaker amp has dual-mode volume control
Maxim Integrated Products has introduced the MAX9768 highly efficient, 10W, mono, single-supply, Class D speaker amplifier with versatile, analog/digital volume control.
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.
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.
2013-09-18 Cancellation speaker driver ICs boast zero audible hiss
The AS3435 and AS3415 ANC speaker drivers from Ams feature integrated bypass switches and claim to provide users with an improved listening experience.
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.
2014-06-27 Audio processor boosts clarity, protects speaker systems
ST's MCU boasts the best combination of technologies including HDR sound acquisition and full flexible modulation scheme, optimising acoustic performance appropriate to a given set of system.
2004-12-01 Audio converter with built-in microphone, speaker amplifiers
AKM developed a low power consumption 16bit mono A/D and D/A audio converter that features built-in microphone and speaker amplifiers and automatic level control.
2005-02-11 Atmel audio chip includes DAC, power speaker
Atmel's AT73C213 audio companion chip for multimedia portable apps integrates an audio-quality 20bit stereo DAC and an audio power amplifier providing up to 1W.
2000-12-05 Adding digital volume control to speaker phone circuits
This application note describes how to replace the potentiometer used in the volume of speakerphones with a digital circuit that allows control of the speaker volume from a set of "UP" and "DOWN" pushbutton switches.
2012-06-25 Active noise sol'n integrates speaker driver ICs
The AS3421 and AS3422 single-chip active noise cancellation devices are designed for Bluetooth-enabled headsets, headphones and earpieces.
2012-12-04 A*STAR embeds speaker verification tech in Lenovo smartphone
A*STAR and Baidu develop technology that unlocks smartphones with user's voice.
2005-06-13 1.6V to 3.6V BTL speaker driver reference design
This app note presents two different BTL configurations that can be implemented with the TPA610xA2 family.
2003-11-12 Yungtech Electronics speakers offer 1.2W rated input
Yungtech Electronics Corp. has announced the availability of its 888M1-1 1.5W mylar speakers that have a rated input of 1.2W and maximum input of 1.5W. With a frequency range of 650Hz to 20kHz, the product has an impedance of 4 ohms 15 percent at 1kHz, and resonant frequency of 900Hz 20 percent. Measuring 68-by-20-by-11mm, mean SPL is 813dB.
2015-03-16 Wireless brings new meaning to connected home audio
Annual shipments of connected audio products such as wireless speakers and connected AV receivers are expected to grow from 1.5 million units in 2010 to nearly 66 million units in 2018, IHS predicted.
2004-05-17 Wireless audio design made simple
Audio performance becomes an important aspect in modern mobile system design and great challenge to most R&D engineers.
2014-12-15 WiFi SDK claims to lower audio device BOM
The fourth-gen JukeBlox 4 software development kit from Microchip allows the development of high quality products such as standalone or multi-room wireless speakers, AV receivers and sound bars.
2004-12-28 Wabony mini speakers rated at 0.2W
Wabony Electronic recently released its MD015B0M-EE mini speakers that are designed for radios.
2003-07-17 Wabony mini speakers fit cellphone kits
The MD010B0M-EE series of mini speakers from Wabony Electronic Co. Ltd features a compact size, and is suitable for cellphone kits.
2004-11-24 Using the TINIm400 for remote audio control
This app note describes the TINIm400 reference module and the Java runtime environment as a remotely controlled speaker, used in a distributed public address system.
2004-07-26 Tongda-WK mylar speakers rated at 10mW
The latest TDE1xN series of mylar speakers from Tongda-WK features a resonant frequency between 500Hz (TDE10N-A and TDE13N-R4) and 550Hz (TDE15N-RY).
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