21ic News TDK recently introduced the C928 microphone, further expanding the product range of EPCOS MEMS microphones. With a signal-to-noise ratio (SNR) of up to 66dB(A) and a frequency range of 20Hz to 20KHz, this microphone is ideal for demanding audio applications in smartphones. When the source is far away, such as hands-free calling or recording video, its high signal-to-noise ratio can significantly improve the sound quality. For traditional microphones, higher signal-to-noise ratios typically increase nonlinear distortion significantly at high sound pressures. For the C928 MEMS microphone with innovative design, the distortion is only 1% even when the sound level is as high as 131 dB, which is very suitable for recording audio sources with extremely high volume. The microphone is not only acoustically sound, but also compact in size – with a total footprint of only 3.35 mm x 2.5 mm and an insertion height of only 1 mm. The new MEMS microphone has strong anti-interference ability due to the use of a symmetrical output power supply. The operating voltage range is 1.6V-3.6V and the maximum current consumption is 140μA. This article refers to the address: http:// Main applications Smartphones and other mobile electronic devices Key Features and Benefits High signal-to-noise ratio up to 66 dB(A) Ultra-low distortion, distortion is only 1% at 130 dB sound level Compact size, footprint only 3.35 mm x 2.5 mm x 1 mm
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