INMP522
Note: The INMP522 is marked as EOL and is not recommended for new designs.
The INMP522 is a high-performance, ultra-low noise, low power, digital output, bottom-ported omnidirectional MEMS microphone. 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) and common sensitivity of −26 dBFS, making it an excellent choice for 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
- ±1 dB Sensitivity Tolerance
- Small and Thin 4 mm × 3 mm × 1 mm Surface-Mount Package
- Omnidirectional Response
- Very High SNR of 65 dBA
- Sensitivity of −26 dBFS
- Extended Frequency Response from 75 Hz to >20 kHz
- Low Current Consumption of 800 µA
- Sleep Mode for Extended Battery Life, <2 µA consumption
- Acoustic Overload Point of 116 dB SPL
- High PSR of −83 dBFS
- Fourth-Order Σ-Δ Modulator
- Digital PDM Output
- Compatible with Sn/Pb and Pb-Free Solder Processes
- RoHS/WEEE Compliant
Product key details
| Operation |
- |
| Package Size |
1.00 x 4.00 x 3.00 |
| Output Type |
PDM |
| Port Location |
bottom |
| Snr |
65.00 |
| Aop |
116.00 |
| Sensitivity (1 KHz, 94 DB SPL) |
- |
| Sensitivity DB FS ±1 DB |
-26.00 |
| Lf Cutoff |
75 |
| Status |
eol |
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