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AS3420 Active Noise Cancellation

Mono Bluetooth ANC Solution

ntegrated Active Noise Cancellation solution addressing feedforward and feedback architectures for Mono wireless headsets, such as unified communications solutions and phone applications.

Diagram for AS3415 Active Noise Cancellation Solution

(Click to Enlarge)

Key Features

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

Key Benefits

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

AS3420 Applications

Mono Wireless Headsets

AS3420 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-20 (4x4)