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
Noise cancellation: The sounds of silence in the car
October 24, 2014
Infotainment system vendor Harman has succeeded in applying noise cancellation technology, hitherto known mostly from headphones ...
HPLEDs double light output, cut costs by 40 percent
Startup creates virtual cores
Photochemical compounds for tunable OLED devices
Consumer chips in the car? Experts demand adequate design processes
Murata cheerleaders demonstrate sensors, swarm intelligence
October 23, 2014
The Murata cheerleaders are a team of small robots that use both sensing and communications to achieve stability and group ...
Radon and VOCs detection goes personal
Cree patent integrates LED and OLED technologies
Tiny display rides maker wave
- 5 Best Practices for Designing Flexible Test Stations
- Intelligent PLCs Expand the Internet of Things
- Solutions for Millimeter Wave Wireless Backhaul
- Enter Linduino
InterviewCEO interview: AMS' Laney on driving a sensor-driven business
Kirk Laney, CEO of Austrian mixed-signal chip and sensor company AMS, wants to leverage the opportunity that technology affords to create new markets for sensors and sensor interfaces.
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, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...MORE INFO AND LAST MONTH' WINNERS...
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.