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Digital Active Noise Cancellation

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

Tech - Audio - Video

Analog ANC

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.

Asset Publisher

PartNo Description Function

Topology

Output Type

Max. Output Power (BTL, 1.8V, 32 Ohm)

mW

 SNR, THD (SE, 34mW, 32 Ohm)

dB

 ANC Performance

dB

 Supply Voltage

V

 Package

Datasheet Demo Buy PartNo
AS3412

Ultra small ANC speaker driver

 Receive path Feedforward Stereo/BTL 90 >112, 5% >30 1.8 to 1.6 WL-CSP25 (2.2x2.2) AS3412
AS3415

Active noise cancellation solutions for stereo headsets

 Receive path Feedforward Stereo/BTL 110 >110, 0.1% >20 1.0 to 1.8 QFN-32 (5x5) AS3415
AS3418

Enhanced ultra-small ANC speaker driver

Receive path Feedforward, Feedback, Hybrid Stereo/BTL 90 118.5 >30 1.4 to 1.8 WL-CSP25 (2.45x2.93) AS3418
AS3421

Low power ambient noise cancellation speaker driver

 Receive path Feedforward Stereo SE 32 SE: 35 >100, <0.1% >25 1.0 to 1.8 QFN-24 (4x4) AS3421
AS3422

Low power ambient noise cancellation speaker driver

 Receive path Feedback Stereo SE SE: 35 >100, <0.1% >20 1.0 to 1.8 QFN-32 (5x5) AS3422
AS3435

Active noise cancellation solutions for stereo headsets

 Receive path Feedback Stereo/ SE / Mono BTL with bypass 125 >106, <0.1% >25 1.0 to 1.8 QFN-36 (5x5) AS3435

Mobile Application - rel. Tech

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.