INMP522 Ultra-Low Noise, Low Sensitivity Tolerance, PDM Digital Microphone
■The INMP522 is an omnidirectional, bottom-ported, digital output MEMS microphone with high performance, ultra-low noise, and low power. The INMP522 has a sensitivity tolerance of ±1 dB from part to part, making it ideal for microphone array and beamforming applications.
■The INMP522 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order Σ-Δ modulator. The digital interface enables the pulse density modulated (PDM) output of two microphones to be time-multiplexed on a single data line using a single clock. The INMP522 is function- and pin-compatible with the INMP521 and INMP421 microphones, providing an easy upgrade path.
■The INMP522 has a very high signal-to-noise ratio (SNR) of 65 dBA and sensitivity of −26 dBFS, making it an excellent choice for near- and far-field applications. The INMP522 has an extended wideband frequency response, resulting in natural sound with high intelligibility. Low current consumption and a sleep mode with less than 2 µA current consumption enables long battery life for portable applications.
■The INMP522 is available in a thin 4 × 3 × 1 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation.
●FEATURES
■Sensitivity Tolerance of ±1 dB
■Small, Thin 4 × 3 × 1 mm Surface-Mount Package
■Omnidirectional Response
■Very High SNR of 65 dBA
■Sensitivity of −26 dBFS
■Wide Frequency Response from 75 Hz to >20 kHz
■Low Current Consumption of 800 µA
■Sleep Mode for Extended Battery Life, <2 µA
■Acoustic Overload Point of 116 dB SPL
■High PSR of −83 dBFS
■Fourth-Order Σ-Δ Modulator
■Digital PDM Output
■Sn/Pb and Pb-Free Solder Processes
■RoHS/WEEE Compliant
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Ultra-Low Noise, Low Sensitivity Tolerance, PDM Digital Microphone 、 omnidirectional, bottom-ported, digital output MEMS microphone |
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[ Smartphones ][ Feature Phones ][ Microphone Arrays ][ Tablet Computers ][ Teleconferencing Systems ][ Digital Still Cameras ][ Video Cameras ][ Bluetooth Headsets ][ Notebook PCs ][ Security ][ Surveillance ] |
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Datasheet |
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Please see the document for details |
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LGA_CAV |
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English Chinese Chinese and English Japanese |
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05/14/2014 |
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Revision: 1.1 |
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DS-INMP522-00 |
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1.1 MB |
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