{"id":7457,"date":"2025-03-12T12:13:45","date_gmt":"2025-03-12T12:13:45","guid":{"rendered":"https:\/\/ecom.roboskillify.com\/index.php\/product\/inmp441-mems-high-precision-omnidirectional-microphone-module-i2s\/"},"modified":"2025-03-12T12:13:52","modified_gmt":"2025-03-12T12:13:52","slug":"inmp441-mems-high-precision-omnidirectional-microphone-module-i2s","status":"publish","type":"product","link":"https:\/\/ecom.roboskillify.com\/index.php\/product\/inmp441-mems-high-precision-omnidirectional-microphone-module-i2s\/","title":{"rendered":"INMP441 MEMS High Precision Omnidirectional Microphone Module I2S"},"content":{"rendered":"

INMP441 MEMS High Precision Omnidirectional Microphone Module I2S<\/h2>\n

The INMP441 is a digital MEMS microphone that is omnidirectional and has a bottom port. It is designed to be high-performing and low-power, and the complete solution includes a MEMS , signal conditioning, analog to digital converter, anti-aliasing filter, power management, and a 24-bit I2S interface that is industry-standard.<\/p>\n

The I2S interface is especially useful because it allows for direct connection to digital processors such as microcontrollers and DSPs without the need for an audio codec. With a high signal-to-noise ratio, the INMP441 is a great option for applications in close proximity. It also has a flat wideband frequency response that results in natural and high-definition sound.<\/p>\n

Interface definition<\/strong><\/div>\n
<\/div>\n
\n
    \n
  1. SCK: Serial data clock for I2S interface<\/li>\n
  2. WS: Serial data word selection for I2S interface<\/li>\n
  3. L\/R: Left\/Right channel selection.<\/li>\n
  4. When set to low, the microphone outputs a signal on the left channel of the I2S frame.<\/li>\n
  5. When set to high level, the microphone outputs signals on the right channel<\/li>\n
  6. SD: Serial data output of the I2S interface.<\/li>\n
  7. VCC: Input power, 1.8V to 3.3V.<\/li>\n
  8. GND: power ground<\/li>\n<\/ol>\n
    NMP441 connection with ESP32<\/strong><\/div>\n
    <\/div>\n
    \n
      \n
    1. SCK -GPIO14<\/li>\n
    2. SD \u0096 GPIO32<\/li>\n
    3. WS \u0096 GPIO15<\/li>\n
    4. L\/R \u0096 GND<\/li>\n
    5. GND \u0096 GND<\/li>\n
    6. VDD \u0096 VDD3.3<\/li>\n<\/ol>\n

      Features:<\/h2>\n
        \n
      • Digital I2S interface with high precision 24-bit data<\/span><\/li>\n
      • High signal to noise ratio is 61 dBA<\/span><\/li>\n
      • High sensitivity \u0096 26 dBFS<\/span><\/li>\n
      • Stable frequency response from 60 Hz to 15 kHz<\/span><\/li>\n
      • Low power consumption: low current consumption 1.4 mA<\/span><\/li>\n
      • High PSR: -75 dBFS<\/span><\/li>\n<\/ul>\n

        Package Includes:<\/h2>\n
          \n
        • 1 x\u00a0INMP441 MEMS High Precision Omnidirectional Microphone Module I2S<\/li>\n<\/ul>\n

          Specifications:<\/h2>\n\n\n\n\n\n\n
          Supply voltage <\/span>\n<\/td>\n3.3V<\/td>\n<\/tr>\n
          Communication interface<\/td>\nInter-IC Sound (I2S)<\/td>\n<\/tr>\n
          Sensitivity<\/td>\nHigh<\/td>\n<\/tr>\n
          SNR<\/td>\nHigh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

          INMP441 MEMS High Precision Omnidirectional Microphone Module I2S The INMP441 is a digital MEMS microphone that is omnidirectional and has a bottom port. It is designed to be high-performing and low-power, and the complete solution includes a MEMS , signal conditioning, analog to digital converter, anti-aliasing filter, power management, and a 24-bit I2S interface that […]<\/p>\n","protected":false},"featured_media":7456,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[653],"product_tag":[127,373,272],"class_list":{"0":"post-7457","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-other-sensor","7":"product_tag-new-arrivals","8":"product_tag-other-sensors","9":"product_tag-sensors","11":"first","12":"instock","13":"sale","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/product\/7457","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/comments?post=7457"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/media\/7456"}],"wp:attachment":[{"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/media?parent=7457"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=7457"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=7457"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ecom.roboskillify.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=7457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}