The INMP441 is a performance, lowpower, digitaloutput, omnidirectional MEMS microphone with a bottom port. The complete INMP441 solution integrates a MEMS sensor, signal conditioning, an analogtodigital converter, antialiasing filters, power management, and an industrystandard 24bit I2S interface. The I2S interface allows the INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for an audio codec in the system. The INMP44 provides a signaltonoise ratio, making it well suited for nearfield applications. Its flat wideband frequency response yields natural sound with intelligibility. Key benefits Direct digital path: 24bit I2S output enables direct connection to DSPs and microcontrollers without an external audio codec, simplifying the design and reducing latency. Integrated signal chain: includes MEMS sensor, signal conditioning, ADC, antialiasing filters, and power management in a single package, reducing external component count. Low power operation: suitable for batterypowered and portable devices, helping to extend runtime. Omnidirectional pickup with bottom port: captures sound from all directions while supporting compact mounting configurations, with consistent acoustic performance. SNR and natural sound: delivers clear voice capture with good intelligibility in nearfield use cases. Compatibility and performance Interface: industrystandard 24bit I2S digital output. Direct connection: usable with digital processors such as DSPs and microcontrollers, without a system codec. Acoustic characteristics: SNR and flat wideband response support natural voice capture in nearfield scenarios. Use scenarios Smart home and voiceenabled devices: ideal for wakeword detection and voice commands in hubs, speakers, and smart devices that require a compact, codec digital microphone path. Portable electronics and handheld recorders: suitable for batterypowered devices needing low power consumption and reliable nearfield voice capture with straightforward digital interface. Embedded cameras, conferencing systems, and intercoms: provides quality nearfield audio capture for clear voice communication in compact formfactor devices.