Product Documentation

AKU240 Family (Top-port)

AKU240/AKU241/AKU242/P Datasheet

AKU243 Datasheet


AKU440 Family (Bottom-port)

AKU440/AKU441/AKU443/P Datasheet

More information

Akustica AKU240 & AKU440 Digital Microphone Families

Product Features

  • 3.0mm x 4.0mm x 1.0mm digital-output MEMS microphones  in top- and bottom-port form factors
  • Excellent acoustic performance
  • Tightly matched -26dBFS with +1dB, +1.5, or +2dB sensitivity options
  • Frequency response supporting super-wideband audio specifications (+5dB) 50Hz-14kHz
  • Power supply rejection of -73 dBFS
  • Immune to RF/EM interference
  • Lead-free, RoHS2 compliant, and Halogen Free in acordance with IEC62020-2-21

Target Applications

  • Voice recognition applications in notebooks, PC's, mobile phones, and media tablets where digital microphones with high SNR and tightly matched sensitivity and phase are required.
  • Other microphone array applications where noise cancellation performance is optimized by using closely-matched microphones
  • Cutting-edge, thin form factor smartphones and mobile accessories

Detailed Description

The AKU240 & AKU440 digital microphone families are well-matched, top- and bottom-ported, surface mountable, digital output MEMS microphones in a space saving 3.0mm x 4.0mm x 1.0mm form factors. Designed for use in notebooks, PC's, smartphones, and media tablets, the AKU240 & AKU440 family of products offer excellent SNR of 63dB, a tightly controlled sensitivity, and a super-wideband frequency response with a digital-output that is virtually immune to RF and EM interference. The output of the AKU240 & AKU440 family of digital microphones is a standard Pulse Density Modulation (PDM) output, a single-bit digital stream which enables the multiplexing of stereo microphone data onto a single wire. With a user selectable L/R channel option, these microphones are ideal for use in multiple microphone applications such as microphone arrays for laptops or media tablet.