Date: 05/05/2010

Active Noise Canceling (ANC) ICs for mobile-phone headphones

Austriamicrosystems has introduced the AS3410 and AS3430 Active Noise Canceling (ANC) ICs for mobile accessories such as headphones. These devices are fully analog and reduce low frequency noise on the receive path to enhance speech intelligibility. These devices aim to produce high functional efficiency using less amount of power and at low costs.

The AS3410 ANC IC is suited for feed-forward topology enabling small, cost-effective solutions targeting on-ear and in-ear devices. The AS3430 addresses devices with complex design to produce high noise canceling abilities. Both devices include mic pre-amps, filter op amps, true ground headphone amp, mic gain calibration, LED driver, volume control and a hearing mode.

The AS3410 and AS3430 provides an achievable noise reduction of higher than 20 dB and SNR greater than 100 dB and THD of 0.1%. Powered by single AAA battery, these devices support operating life of greater than 100 hours, making them well suited for headsets for mobile phones, music players, netbooks and eTablets.

"With an extensive set of development tools and comprehensive documentation, these new ANC products enable rapid prototyping and system optimization, simplifying development and reducing time to market," commented Oliver Jones, austriamicrosystems' Marketing Manager for Audio products. "In addition, this expansion to our existing Active Noise Cancelling portfolio simplifies the production process for headsets due to the integrated calibration feature and reprogrammability."

Package: 24-pin 4x4 mm QFN, 32-pin 5x5 mm QFN

Price: AS3410 is priced at $2.55 for 1000 piece quantities
AS3430 is priced at $455 for 1000 piece quantities

Availability: Now

For further information visit: www.austriamicrosystems.com/ANC