AS3422 Active Noise Cancellation

Low power ambient noise cancellation speaker driver


  • >20dB noise reduction achievable
  • High quality audio chain
  • Fully electronic calibration
  • Differential line inputs
  • 1.0V - 1.8V supply


  • Superior performance
  • Pure, unadulterated audio
  • No manual intervention during production
  • Seamless connection to BT SoC's
  • Optimised system efficiency

Product parameters

Function Receive path
Topology Feedback
Output Type Stereo SE
Max. Output Power 34mW@16 Ohm load; 24mW@32 Ohm load
SNR, THD >100dB, <0.1% (SE, 34mW, 16 Ohm)
ANC Performance >20dB
Supply Voltage 1.0V to 1.8V
Package QFN-32 (5x5)

General Description

Analog ANC solution

Integrated active noise cancellation solution addressing feedback architecture for stereo wireless headsets, suitable for music, video or mobile use.

Not Recommended for New Designs
ams AG is discontinuing production of this device.

This product suits for the following applications:

  • Stereo Bluetooth headsets
  • Stereo wireless headsets


Title Category Headline Buy
AS3422EvalKit Application Board Evaluation Kit for AS3422

Technical Documents

Type Description Language
Datasheet Document version 1.10 English


Type Description Language
EoL Notification AS3422 (issued 2019-Jan) English

Other Information

Type Description Language
Factsheet Stereo Bluetooth ANC Headphone Speaker Driver English

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