Low Power Smart Codec with Active Noise Cancellation and Echo Cancellation

The WM8281 is a highly integrated low-power audio system that combines an advanced DSP feature set with a flexible, high-performance codec. The programmable DSP cores support advanced audio features, including multi-mic wideband noise reduction, high-performance acoustic echo cancellation (AEC), mono active noise cancellation (ANC), speech enhancement, advanced media enhancement, and many more.

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Smart Codecs, Audio DSPs

Application Categories

Mobile Audio Devices


  • 600 MIPS, 600 MMC multi-core audio-signal processor
  • Programmable wideband, multi-mic audio processing
  • Multi-channel asynchronous sample rate conversion
  • Integrated 6/8 channel 24-bit hi-fi audio codec
  • Analog and digital microphone inputs
  • Multi-purpose headphone / earpiece / line output drivers
  • Stereo Class D speaker output drivers
  • Four-channel digital speaker (PDM) interface
  • SLIMbus audio and control interface
  • 3 full digital audio interfaces
  • Flexible clocking interface
  • Advanced accessory detection feature
  • Configurable functions on GPIO pins
  • Integrated LDO regulators and charge pumps
  • Small WLCSP package, 0.4mm pitch

Parametric Specifications

DACs 8
ADCs 6
DAC THD+N (dB) -90
ADC THD+N (dB) -88
Sample Rate (kHz) 4-192
Analog Power Supply (V) 1.8
Digital Power Supply (V) 1.2;
Power Consumption (mW) 4.1-1568
Package 138 WLCSP

Software and Tools

Device Pack for WM8281

Sep 26, 2017, v1.4.7 : 27.8 Mb

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