Products > Integrated Circuits (ICs) > Audio ICs > BR281W31A101V1G
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Manufacturer :
ON Semiconductor, LLC
Package/Case :
Product Categories :
Audio Special Purpose
BR281W31A101V1G PDF
RoHs Status:
Pb-free Halide free

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BR281W31A101V1G Product Details

Always-Listening, Voice Trigger Audio DSP System, BelaSigna- Always Listening, Voice Trigger Solution (WLCSP)


  • Ultra-Low-Power
  • ~ 300 µW power consumption for true "always-on" operation without affecting battery Standby life
  • Superior Performance
  • Unique pattern-matching audio algorithm developed internally by ON Semiconductor
  • Mixed-Signal
  • Supports analog or digital microphone inputs
  • Easy Design-In
  • Available in ultra-miniature form-factors for fast and simple integration


  • "Always Listening" Hands-Free Voice Trigger
  • Smartphones
  • Tablets
  • Wearables
  • Smart Watches
  • Portable Electronic Devices
  • Personal Communication Devices
  • Any device with an extremely low-power sleep mode which could benefit from "always listening" voice trigger technology

Technical Parameters

Function Audio Signal Processor Operating Temperature -40??C ~ 85??C (TA)
Applications Voice Trigger Solution Package / Case 31-UFBGA, WLCSP
Interface I2C Supplier Device Package 31-WLCSP (2.77x2.45)
Voltage Supply 1.62V ~ 3.63V

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