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
SMIC to report Tunnel-FET extension to CMOS
October 08, 2015
Chinese foundry Semiconductor Manufacturing International Corp. has manufactured complementary Tunnel FETs (C-TFETs) that ...
Moroccan camera packager to exit market, auction equipment
Dresden's chilling evening stroll
Next-gen ADAS focuses on urban driving
Chip market decline accelerated in August, says ESIA
Standardisation of vehicle data makes progress
October 07, 2015
Representatives from electronic map provider HERE and companies active along the automotive value chain have met in Auburn ...
NFC concrete slabs for a smart city
Update: IMEC, Cadence tape out first 5nm test chip
Sony to spin off image sensor business
- Determine Balancing Current for the LTC3305 Lead-Acid Battery Balancer
- 3 Ways to Simplify Medical Device Testing
- Thread Networking Protocol Simplifies Connecting “Things” in the Home and Beyond
- High Voltage CMOS Amplifier Enables High Impedance Sensing with a Single IC
InterviewMEMS platforms are way to go, says Bosch's Finkbeiner
In the two years since we last interviewed Stefan Finkbeiner, CEO of Bosch Sensortec, the company has taken over from STMicroelectronics as the leading global supplier of MEMS components. Here he explains ...
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, LabNation is giving away three of its SmartScope open source USB oscilloscopes, worth 229 Euros each, for EETimes Europe's readers to win.
Successfully funded through Kickstarter last year, the SmartScope is claimed to be the world's first test equipment designed to run on multiple operating systems and platforms such as smartphones, tablets and PCs. It is powered directly from... 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.