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AS3421 Active Noise Cancellation

Low power ambient noise cancellation speaker driver

Features

  • >25dB noise reduction achievable
  • High quality audio chain
  • Fully electronic calibration
  • Differential line inputs
  • 1.0V - 1.8V supply

Benefits

  • 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 Feedforward
Output Type Stereo SE
Max. Output Power (BTL, 1.8V, 32 Ohm) [mW] 32 SE: 35
SNR, THD (SE, 34mW, 32 Ohm) [dB] >100, <0.1%
ANC Performance [dB] >25
Supply Voltage [V] 1.0 to 1.8
Package QFN-24 (4x4)

General Description

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

This product suits for the following applications:

  • Stereo Bluetooth headsets
  • Stereo wireless headsets

Tools

Title Category Headline Buy
AS3421EvalKit Application Board Evaluation Kit for AS3421

Resources

Name Type Description Language
AS3421_22_SW000175_1-00.zip Software Driver source v0.9.3 English

Technical Documents

Name Type Description Version Language
AS3421_22_DS000194_1-00.pdf Datasheet Document version 1.10 1-00 English
AS3421_AS3422_FS000195_1-00.pdf Factsheet Stereo Bluetooth ANC Headphone Speaker Driver 1-00 English
AS3421_PD000343_1-00.png Other Product Document AS3421EvalKit Image 1-00 English

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