Infineon Mikrofon Digital Omnidirektional -25dBFS 69dB

This digital microphone is a high-performance MEMS device designed for applications demanding exceptional audio quality. With a compact footprint of 4mm x 3mm x 1.2mm, the omnidirectional microphone effectively captures sound from all angles. The robust construction allows operation over a temperature range of -40°C to 70°C, ensuring reliability in various conditions.

• Very low self-noise enhances audio quality in recordings
• High sensitivity supports clear voice recognition in noisy environments
• Adjustable power modes optimise battery usage for portable electronics
• Precision phase matching improves performance in array applications
• Rapid digital conversion provides quick response times for real-time processing

• Utilised in smart speakers for enhanced voice interaction
• Ideal for home automation systems requiring precise audio capture
• Integrated into headphones for effective noise cancellation
• Used in cameras and camcorders for high-quality audio recording
• Suitable for industrial monitoring and audio detection

Das Hochleistungs-Digital-XENSIV-MEMS-Mikrofon von Infineon wird in einer 16-Bit-Audio-Signalkette verwendet. Die volle SNR-Leistung würde nicht realisiert, da der Rauschgrund durch den Systemdynamikbereich begrenzt wird. Der IM69D120 wurde speziell entwickelt, um 69 dB(A) SNR in einem 16-Bit-System zu erhalten. Dies wird erreicht durch Erhöhung der Mikrofonempfindlichkeit auf -26 dBFS und Reduzierung des akustischen Überlastpunkts auf 120 dBSPL.

Hochfrequenz- und Fernfeld-Audioaufzeichnung
Extrem niedrige Gruppenverzögerung für Latenzkritische Anwendungen
Keine analogen Bauteile erforderlich

Its low equivalent noise floor of 25dBSPL and high signal-to-noise ratio of 69dB(A) ensure that the audio signal is not limited by microphone noise, enhancing accuracy for voice recognition algorithms.

It offers different operational modes selected via the PDM clock frequency, accommodating various current consumption needs while maintaining performance efficiency.

Thanks to its tight manufacturing tolerances, sensitivity and phase response are closely matched, allowing for seamless integration and improved audio clarity in beamforming applications.