Low Power Smart Codec with Ambient Noise Cancelation and Echo Cancelation

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 cancelation (AEC), stereo ambient noise cancelation (ANC), speech enhancement, advanced media enhancement, and many more.


Smart Codecs, Audio DSPs

Product 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 Dynamic Range (dB) 121
ADC Dynamic Range (dB) 100
DAC THD+N (dB) -92
ADC THD+N (dB) -89
Sample Rate (kHz) 192
Analog Power Supply (V) 1.7-5.5
Supply Current (µA) 1.14-1.9
Package 138 WLCSP




Comprehensive Solutions