Low power ANC ICs improve listening quality in mobile accessories
May 04, 2010 // Paul Buckley
Austriamicrosystems has released a duo of active noise cancelling (ANC) ICs for mobile accessories such as headphones.
The fully analog devices enhance speech or music intelligibility by reducing low frequency noise on the receive path. The AS3410 and AS3430 claim the industry's lowest BOM cost and low power consumption through a high level of functional integration.
The AS3410 ANC IC is ideally suited for feed-forward topology enabling small, cost-effective solutions targeting on-ear and in-ear devices. The AS3430 addresses feedback topologies resulting in end products with superior noise cancelling capabilities but with a more complex design. Both devices include; mic pre-amps, filter op amps, true ground headphone amp, mic gain calibration, LED driver, volume control and an assisted hearing mode. These features enable PCB space savings of up to 50 percent as compared to discrete implementations.
The AS3410 and AS3430 Active Noise Cancellation ICs provide a level of performance unmatched by competitive solutions with >20 dB noise reduction achievable and SNR of >100 dB and THD of 0.1 percent. Running off a single AAA battery these devices support operating life of > 100 hours, making them well suited for headsets for mobile phones, music players, netbooks and eTablets.
Availability and Pricing
The AS3410 is available in a 24-pin 4x4 mm QFN package and is priced at 2.55 US Dollars for 1000 piece quantities. The AS3430 is housed in a 32-pin 5x5 mm QFN package and is priced at 4.55 US Dollars for 1000 piece quantities. Both operate from a 1.0 to 1.8 V supply over a temperature range of -20 to +85 degrees C.
Related link: AS3410/30 Active Noise Cancellation ICs
Printed OLEDs make large advertising more communicative
March 03, 2015
The VTT Technical Research Centre of Finland is now able to print large Organic Light-Emitting Diodes (OLEDs) to create patterned ...
Motor drive analyser leverages 8-channel, high-definition oscilloscope
Tronics offers to license MEMS processes to foundries
OmniVision, eyeSight, push gesture towards the smartphone
Fraunhofer, Nokia jointly run LTE-A testbed
NXP, Freescale plan mega merger
March 02, 2015
In one of the biggest consolidations in the semiconductor industry to date, NXP and Freescale have announced plans for a ...
Semitrex' ultimate goal: "one size fits all" power conversion
Graphene polymer speeds electron transport
Samsung phones pack 14nm SoC
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
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
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...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.