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Home › Solutions › SmartSound › Analog Microphones › ICS-40300 |
ICS-40300High SPL Analog Microphone with Extended Low Frequency ResponseThe ICS-40300 is a low-noise, high SPL MEMS microphone with extended low frequency response. The ICS-40300 consists of a MEMS microphone element and an impedance converter amplifier. The ICS-40300 low frequency response makes it an excellent choice for applications requiring precise phase matching. The ICS-40300 is pin compatible with the INMP401 and INMP411 microphones, providing an easy upgrade path. The ICS-40300 has a linear response up to 130 dB SPL. It offers low frequency extension down to 6Hz, resulting in excellent phase characteristics in the audio range. Low current consumption enables long battery life for portable applications. The ICS-40300 is available in a 4.72 × 3.76 × 3.5 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation. |
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| Product | Package Size | Output | Port Location | SNR (dBA) | AOP (dB SPL) | Sensitivity (dbfs) | LF Cutoff (Hz) | Status | Purchase |
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 ICS-40300 | 4.72 × 3.76 × 3.5 | Analog | Bottom | 63 | 130 | 6 | Production |
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| Datasheet / Product Brief | Version | Updated | Download |
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| DS-ICS-40300 – ICS-40300 Datasheet | 1.3 | 2018-07-17 |  |
| App Notes & User Guides | Version | Updated | Download |
|---|---|---|---|
| AN-100 – MEMS Microphone Handling and Assembly Guide | 1.5 | 2017-07-12 |  |
| AN-1112 – Microphone Specifications Explained | 1.1 | 2016-06-15 | |
| AN-1124 – Recommendations for Sealing InvenSense Bottom-Port MEMS Microphones from Dust and Liquid Ingress | 1.0 | 2014-03-21 | |
| AN-1140 – Microphone Array Beamforming | 1.0 | 2013-12-31 | |
| AN-1003 – Recommendations for Mounting and Connecting InvenSense MEMS Microphones | 1.0 | 2013-12-31 | |
| AN-1165 – Op Amps for MEMS Microphone Preamp Circuits | 1.0 | 2013-12-31 | |
| AN-0207 – High-Performance Analog MEMS Microphone Simple Interface to SigmaDSP Audio Codec | 1.0 | 2014-02-22 | |
| AN-1181 – Using a MEMS Microphone in a 2-Wire Microphone Circuit | 1.0 | 2013-12-31 | |
| Low Self Noise: The First Step to High-Performance MEMS Microphone Applications | 1.0 | 2013-12-31 | |
| Analog and Digital MEMS Microphone Design Considerations | 1.0 | 2013-12-31 | |
| Understanding Microphone Sensitivity | 1.0 | 2013-12-18 | |
| UG-445 – Analog Output MEMS Microphone Flex Evaluation Board User Guide | 1.2 | 2014-05-13 |  |
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