Knowles versatile, multi-mode analog microphone
- Low (15Hz) LFRO and Tight Phase Tolerance enhance and
improve ANC and beam forming algorithm performance - 1% THD at 131 dB SPL and a large dynamic range enables
improved barge-in performance and resilience to wind
noise turbulence - 65dB Signal-to-Noise Ratio (SNR) in a small footprint,
ideal for a wide range of use cases and devices - Multiple operating modes facilitates both high-performance
and low-power/Always On applications
Typical Applications
Such as earphones with Noise Cancellation (active or not), Headsets / Earbuds, Action Cameras, Noise Cancellation, Speech Enhancement, etc.
The high-performance MEMS microphone
Key Parameters & Specs:
- Signal-to-noise ratio (SNR) (Diff/SE): 63/64.5 dB (A) for LPM and 65/65 dB (A) for SPM
- Acoustic Overload Point (1%/10% THD): 128/132 dBSPL for LPM and 131/134 dBSPL for SPM
- Low Frequency Roll Off (LFRO): 15 Hz
- Resonant Frequency: 45 Hz
- Current consumption: 70uA for LPM and 220 uA for SPM
- Sensitivity and Tolerance: -38 ± 1 dB FS (Diff) / -44 ± 1 dB FS (SE)
- Supply voltage: 1.6 to 1.9V for LPM and 2.3 to 3.6V for SPM
- Interface: Analog Differential or Single-Ended
- Port location: Bottom Port
- Package dimensions: 3.10 x 2.65 x 0.96 mm
Solutions, Samples and Datasheets are available at SELTECH
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