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

AS3435 Active Noise Cancellation

Active noise cancellation solutions for stereo headsets


Integrated Active Noise Cancellation solution with integrated bypass function addressing feedback and hybrid architectures for Stereo wired headsets, suitable for music, video or mobile use.

Key Features

  • Bypass function
  • >20dB noise reduction achievable
  • High quality audio chain
  • Fully electronic calibration
  • Single Cell (AA/AAA) or 1.0V - 1.8V supply

Key Benefits

  • Listen to audio even without power
  • Superior performance
  • Pure, unadulterated audio
  • No manual intervention during production
  • Unparalleled battery life

Product Facts

Function Receive path
Topology Feedback
Output type Stereo/ SE / Mono BTL with Bypass
Max output power (BTL, 1.8V, 32 Ohm) [mW] 125
SNR, THD (SE, 34mW, 32Ohm) [dB] >106, <0.1%
ANC performance [dB] >25dB
Supply voltage [V] 1.0 to 1.8
Package QFN-36 (5x5)

Additional Information


The devices are ideal for:

  • Ear pieces
  • Headsets
  • Hands-free kits
  • Mobile phones
  • Voice communicating devices


AS3501/02 wins EDN China Innovation Award

ams AS3501/02 ANC solution to win EDN China's Annual Innovation Awards Competition

austriamicrosystems to win EDN China Innovation award 2010 - leading poduct