Class-D amplifier device reduces distortion and prevents early phone software shutdown
April 10, 2012 // Paul Buckley
Fairchild Semiconductor has developed the FAB3103 2.3 watt class-D audio amplifier with integrated boost regulator and battery automatic gain control (AGC) which is suitable for use in mobile handsets, smart phones, and tablets, as well as portable media players.
Suitable for use in mobile handsets, smart phones, and tablets, as well as portable media players, the FAB3103 has an integrated boost regulator that allows for high audio output power over a power supply range of 2.5 V to 5.2 V from a 3.6 V Li-Ion battery.
At low power output, the device’s boost regulator automatically shuts down for greater efficiency and lower quiescent current consumption, resulting in longer battery runtime. The FAB3103 audio amplifier also features battery automatic gain control (AGC) that reduces gain when the power supply voltage is low in order to limit maximum power consumption, reducing distortion and preventing early device shutdown.
Availability and Pricing
Available in a 12-bump, WL-CSP, the FAB3103 device also offers several protection features including short circuit protection, low voltage shutdown, and click and pop suppression. Additionally, the low EMI design of the device allows for filterless operation with high noise rejection using differential audio inputs, improving sound quality. The device is priced at $0.44 in 1,000 quantity pieces.
Visit Fairchild Semiconductor at www.fairchildsemi.com
Osram announces massive job cuts
July 30, 2014
Amidst the decline of conventional illuminants like incandescent bulbs and fluorescent tubes, lighting manufacturer Osram ...
IoT: sensor fusion or confusion?
Next-gen HiFi competition takes place in the car
Rohde & Schwarz acquires IT security company
Pure lithium anode promises more efficient rechargeable batteries
High-temperature superconductivity discovery paves way for energy superhighways
July 29, 2014
Physicists at University of Illinois at Chicago (UIC) working with Cornell University and Brookhaven National Laboratory ...
BMW invoke fast battery chargers to spark EV sales
Study pinpoints how to make Li-ion batteries last longer
Audi, BMW, Daimler drive open source measurement data management
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
- Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
- Exploring the Business Model Evolution of High-Tech Equipment Manufacturers
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.