Digital ANC - Augmented Hearing

ams Digital Active Noise Cancellation (ANC) technology tunes out ambient noise through market leading ANC performance >40dB. The technology simultaneously tunes in speech and music with its natural and boosted transparency modes.

The ams Augmented Hearing device supports feedforward, feedback and hybrid ANC topologies as well as featuring Automatic Leakage Compensation (ALC) algorithms which enable for the very first time in the audio industry hybrid ANC functionality in loose fit earbuds.

Find out more about ams Audio Sensing Technology

Read more about  Applications for Mobile Devices

Analog Active Noise Cancellation

Analog Active Noise Cancellation (ANC) solutions greatly reduce the level of unwanted noise from the environment, improving the experience of listening to mobile communications and multimedia devices. The portfolio supports feedforward, feedback and hybrid ANC topologies .

ANC solutions are highly cost effective and consume the lowest power of any other equivalent solution. Therefore ANC helps to significantly reduce noise-induced stress and enhance the listening experience in everyday life.

PartNo Description Function

Topology

Output Type

Max. Output Power

SNR, THD

ANC Performance

Supply Voltage

Package

Datasheet Demo Buy PartNo
AS3460 Digital Augmented Hearing Digital ANC and Augmented Hearing FF, FB, Hybrid Stereo Fully Differential 30mW@32 Ohm load; 50mW@16 Ohm load 110dB, 80dB @10mW output power (32 Ohm load) >40dB 1.8V (typ) FBGA36 AS3460
AS3435 Active noise cancellation solutions for stereo headsets Receive path Feedback Stereo/ SE / Mono BTL with bypass 150mW mono differential @ 16 Ohm load; 110mW mono differential @ 32 Ohm load >106dB, <0.1% (SE, 34mW, 32 Ohm) >25dB 1.0V to 1.8V QFN-36 (5x5) AS3435
AS3422 Low power ambient noise cancellation speaker driver Receive path Feedback Stereo SE 34mW@16 Ohm load; 24mW@32 Ohm load >100dB, <0.1% (SE, 34mW, 16 Ohm) >20dB 1.0V to 1.8V QFN-32 (5x5) AS3422
AS3421 Low power ambient noise cancellation speaker driver Receive path Feedforward Stereo SE 34mW@16 Ohm load; 24mW@32 Ohm load >100dB, <0.1% (SE, 34mW, 16 Ohm) >25dB 1.0V to 1.8V QFN-24 (4x4) AS3421
AS3418 Enhanced ultra-small ANC speaker driver Receive path Feedforward, Feedback, Hybrid Stereo/BTL 130mW (Mono Differential; 32 Ohm load) 118.5dB, 0.007% (SE, 30mW, 32 Ohm load) >30dB 1.4V to 1.8V WL-CSP30 package (2.645 x 2.545mm; 0.4mm pitch) AS3418
AS3415 Active noise cancellation solutions for stereo headsets Receive path Feedforward Stereo/BTL 150mW mono differential @ 16 Ohm load; 110mW mono differential @ 32 Ohm load >110dB, 0.1% (SE, 34mW, 32 Ohm) >20db 1.0v to 1.8v QFN-32 (5x5) AS3415
AS3412 Ultra small ANC speaker driver Receive path Feedforward Stereo/BTL 50mW mono differential @16 Ohm load; 34mW mono differential @32 Ohm load >112dB, 0.008% (single ended, 10mW, 32 Ohm load) >30dB 1.6V to 1.8V WL-CSP25 (2.2x2.2) AS3412

Audio Sensing

ams is the leading provider of Active Noise Cancellation (ANC) chips for headphone applications. The ANC products from ams are smaller than competing solutions, use less power, and offer better noise attenuation.

Active Noise Cancellation (ANC)