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Knowles – Using differential microphones
Designing ANC Earphones (74 mins, downloadable)
Want to learn more about active noise cancelling (ANC) design? Learn more in this in-depth video from Knowles Corporation covering ANC theory, design methods, and hardware selection.
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The Huddly video conferencing camera
The Huddly video conferencing camera has impressive zoom in / zoom out functionality using an array of 5 Knowles Crawford microphones designed by SELTECH. ????
@huddly_official .
Azoteq – Power supply of capacitive sensors
Back in the office
Following our work-from-home phase, the SELTECH team in France is back in the office – ready to support the R&D and production needs of our European customers that are ramping up again.
SELTECH – Recommended design guideline for micro speakers
SMARTWATCH: SELTECH IS YOUR SOLUTION PROVIDER
Product overview
SELTECH provides expertise in designing and product supply of high end acoustic components. Our selected and trusted range perfectly matches the performance and aesthetic requirements of smartwatches. |
Our partner
Solutions, Samples and Datasheets are available at SELTECH
Interested in this product or need more information ? Ask your Seltech contact or click below :
Knowles – Analog vs Digital microphones
NEW MEMS Microphone: Ellen SPW0878LR5H-1
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
| Interested in this product or need more information ? Ask your Seltech contact or click below : |
