AS3412 Active Noise Cancellation

Ultra small ANC speaker driver


  • 30dB noise reduction achievable
  • Integrated bypass switches
  • Up to 34mW stereo output power
  • Full digital control
  • Support of feedforward topology
  • WL-CSP 2.2x2.2mm package; 0.4mm pitch


  • No mechanical switch for passive playback
  • Reduced hiss noise level
  • Ultra small PCB size

Product parameters

Function Receive path
Topology Feedforward
Output Type Stereo/BTL
Max. Output Power 50mW mono differential @16 Ohm load; 34mW mono differential @32 Ohm load
SNR, THD >112dB, 0.008% (single ended, 10mW, 32 Ohm load)
ANC Performance >30dB
Supply Voltage 1.6V to 1.8V
Package WL-CSP25 (2.2x2.2)

General Description

Analog ANC solution

Active Noise Cancellation technology maximizes the end-user experience in today's advanced world of mobile communications, enabling crystal clear sound during phone conversations or music listening regardless of the surrounding environment noise.

A highly integrated system in combination with lowest power consumption on the market plus a cost-effective price model makes the AS3412 ideally suited for smartphones or other mobile devices.

The AS3412 is targeting feed-forward topology and is able to effectively reduce ambient noise up to 3 kHz. Used in a true wireless ear piece AS3412 even enables state of the art hybrid noise cancellation.

This product suits for the following applications:

  • Mobile accessory
  • Stereo on-ear headsets
  • Stereo earpieces
  • Multimedia devices


Title Category Headline Buy
AS3412EvalKit Application Board Evaluation Kit for AS3412

Technical Documents

Type Description Language
Datasheet Document version 1-00 English


Type Description Language
Product Change Notification CN43-2020 (issued 2020-Aug) English

Other Information

Type Description Language
Block Diagram AS3412 Block Diagram English
Factsheet Active Noise Cancellation English

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