ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

AS3400 Active Noise Cancellation

Single channel (differential) ANC solution for accessories

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Integrated Active Noise Cancelling solution addressing feedforward and feedback architectures for Mono wired headsets, such as unified communications solutions and wired phone applications.


Not Recommended for New Designs!

ams AG is discontinuing production of this device. Final lifetime buy order must be placed by January 31, 2018.

Key Features

  • >20dB noise reduction achievable
  • No pop/click, high quality audio chain
  • Fully electronic calibration
  • Monitor or assisted hearing mode

Key Benefits

  • Superior performance
  • Pure, unadulterated audio
  • No manual intervention during production
  • Acoustic transparency when needed

Product Facts

Function Receive path
Topology Feedforward or feedback
Output type Mono BTL
Max output power (BTL, 1.8V, 32 Ohm) [mW] 125
SNR, THD (SE, 34mW, 32Ohm) [dB] >100, <0.1%
ANC performance [dB] >20
Supply voltage [V] 1.0 to 1.8
Package QFN-24 (4x4)

Additional Information

  • Mono wired or wireless headsets
  • Headsets with High Impedance speakers