AKU3400 pages

Product Brief

AKU340
Analog Silicon MEMS Microphone
www.akustica.com

Key Features
Low noise microphone with 62dB SNR
High performance, omni-directional, analog output
Tightly matched sensitivity of -38dBV/Pa ± 2 dBV
Flat frequency response (+/- 3dB) 60Hz – 12.5 kHz
3

2.50 x 3.35 x 1.00mm space saving form factor
Metal lid package for robust RF/EM immunity
Power supply rejection above -60dBV
Industry-standard form, fit, and function for easy
integration into existing designs
Low current consumption of 230µA

General Description

Pb-free and RoHS compliant

The AKU340 is a surface mountable, analog output
microphone, in a space saving 2.50 x 3.35 x 1.00mm

Halogen Free in accordance with IEC61249-2-21

bottom port package.

Target Applications
Smartphones and mobile phones which require high

Designed specifically to meet the demanding
requirements of mobile handset OEMs, the AKU340

quality acoustic performance in a small form factor
microphone.

offers excellent acoustic performance with 62dB signalto-noise ratio (SNR) and a flat wideband frequency

Multi-mic applications and noise cancellation
algorithms which benefit from microphones with

response, with deviations less than +/-3dB from 60Hz
to 12.5kHz, delivering uniform audio capture across a

tightly-matched sensitivity and phase.
Products designed to capture wideband audio that

broad acoustic spectrum. In addition, with its tight
sensitivity matching of just +/-2dB between

require a microphone with little to no frequency
response variation from 100Hz – 10 kHz.

microphones, the AKU340 is ideal for use in
microphone array applications where more uniform

Small, thin consumer electronic devices using more
than one microphone

microphones lead to increased performance of noise
suppression algorithms.

Functional Block Diagram

Leveraging a metal lid package and robust design, the
AKU340 provides a high degree of RF and ElectroMagnetic immunity, enabling consistent acoustic
performance in noisy wireless environments.

Data subject to change without notice | © Akustica, Inc. 2014. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as
in the event of applications for industrial property rights. October 2014