| The Future is Here! Akustica Digital Microphones |
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Akustica's digital microphones are the world's first 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.
All Akustica digital microphones meet the microphone array performance requirements for Microsoft Vista™.
Akustica Digital Microphone Advantages:
- Surface mountable and automated pick and place compatible
- Digital output and monolithic design eliminate RF and EM Interference for greater design flexibility
- Shielded cabling not required for signal routing
- 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
- Highly matched in frequency and phase response
| Comparison of Akustica Digital Microphone Products |
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AKU2000 |
AKU2001L/R |
AKU2004 |
| Output Type |
PDM Output |
Tri-state PDM Output |
Tri-state PDM Output |
| Package Footprint |
4mm x 4mm |
4mm x 4mm |
4mm x 6mm |
| Package Type |
Undermount |
Undermount |
Topmount |
| Number of Leads |
4 |
4 |
6 |
| L/R Selection |
N/A |
Hardwired |
User Select |
| Ideal Applications |
Single microphone applications. |
Embedded microphone arrays for laptops or other array applications requiring a minimum number of wires. |
Embedded camera modules with high quality voice input. |
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