The Future is Here! Akustica Digital Microphones

Akustica's digital microphones are the world's first and only surface mountable monolithic digital microphone chips that integrate an acoustic transducer, analog output amplifier, and sigma-delta modulator on a single chip.  The single-bit digital output stream connects to downstream electronics without shielded cabling or complex signal routing, providing the highest degree of design flexibility and freedom.  Acoustic performance of Akustica digital microphone chips is equal to or better than conventional analog microphones.

An important benefit of Akustica digital microphones is their immunity to RF (radio frequency) and EM (electromagnetic) interference, which allows placement in optimal acoustic locations regardless of proximity to displays, WiFi antennae or other sources of interference that would degrade or preclude use of conventional microphones.   In addition, the output of two digital microphones can be multiplexed onto a single data wire.  The overall result is that manufacturers can achieve enhanced voice quality with a reduced component and wire count.

All Akustica digital microphones meet the microphone array performance requirements for Microsoft Vista™.

The latest generation of digital microphone from Akustica is the AKU2002C which is a top port microphone designed specifically to be a drop-in replacement for the AKU2002A/B as well as other digital MEMS microphones used today that have a 3.76mm x 4.72mm footprint.  The AKU2002C has also been designed with enhanced robustness for improved manufacturing yields.

The AKU2002C is ideal for use for dual microphone applications where the microphones are placed in an RF/EM rich environments such as microphone arrays mounted to embedded camera modules for laptop PCs, dual microphone wireless headsets, and smartphone applications.

Advantages of AKU2002C:

• Robust digital output and monolithic design eliminate RF and EM Interference for greater design flexibility (Shielded cabling not required for signal routing)
• PDM (Pulse Density Modulated) output supports dual-microphone, single-wire multiplexing
• Small form factor enables placement in thin profile areas and very small products
• Integrated PSR (Power Supply Rejection) eliminates the need for a regulated power supply to the microphone
• Power-down mode reduces current consumption when microphones not in use
• Drop-in replacement for AKU2002A/B or other industry standard digital microphone footprints
• Industry standard output compatible with multiple CODECs for PC, headset, and mobile phone applications
• Lead-free surface mountable and automated pick and place compatible

Mono or stereo AKU2002C digital microphones will interface directly to most HD Audio CODECs available today for laptop and desktop PCs.  Akustica has also developed a microphone array module, the AKU2xxx-Module-B, that can be used to evaluate stereo digital output microphones.  This module can interface to any CODEC which accepts the standard digital microphone interface (PDM) or you can use the included harness to directly connect the microphone array module to the Texas Instruments TLV320AIC33/3106/34 Stereo Audio Converter evaluation board.

		Download AKU2002C Product Brief
		Download AKU2002C Evaluation Kit Info
		Download AKU2xxx-Module-B Product Brief
		Request Detailed Information

AKU2002C Digital microphones

1mm x 1mm microphone die