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
Private ID as a service leverages smartphone-enabled biometrics
November 26, 2015
Kicked-off in July last year, the PIDaaS (Private Identity as a Service) project aims to leverage today's smartphone sensors' ...
Like Micron, SK Hynix rejects Chinese advances
NXP, Freescale merger clears FTC hurdle
Thin film micro-lenses stretch to focus
Report: Abu Dhabi holding talks over GloFo sale
InvenSense to add PUF security to sensors
November 25, 2015
MEMS vendor InvenSense Inc. (San Jose, Calif.) has partnered with Intrinsic-ID BV (Eindhoven, The Netherlands) to develop ...
Flexible sensor detects multiple ions in fluids
Microsemi sees off Skyworks to win PMC-Sierra
Starting all over again on plastic: ARM
- Battery Size Matters
- Software-Defined Radio Handbook - 11th edition
- Multichemistry Buck Battery Charger Controller
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
InterviewCEO interview: InvenSense's Abdi on expanding MEMS horizons
InvenSense Inc. is a MEMS company that has epitomized a fabless approach to a sector that is still highly reliant on a thorough grasp of the manufacturing and packaging processes. We interviewed CEO Behrooz ...
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, FTDI Chip is giving away six MCU development board packages complete with a dedicated compiler (including a full integrated development environment).
Worth Euro 315 each, the packages include a credit card sized Clicker 2 board for the FT90X 32-bit MCU supplied alongside a powerful dedicated compiler from MikroElektronika.
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.