Semi-finishedproduct : No
Data Record : No
High-concerned chemical : none
Electronic : No
DIY Supplies : Electrical
Brand Name : Aideepen
Origin : Mainland China
Certification : NONE
Product Features:
1. High-performance digital I²S output, compatible with INMP441 for easy system integration.
2. 24-bit high-precision data delivers clear audio signals and natural sound quality.
3. High signal-to-noise ratio effectively reduces background noise interference.
4. High sensitivity accurately captures near-field audio details.
5. Wide frequency response (60Hz-15kHz) suits diverse voice capture scenarios.
Product Description:
This sensor is a high-performance, low-power, digital-output omnidirectional MEMS microphone with a bottom-port design. It is compatible with the INMP441. The device integrates a MEMS sensor, signal conditioning circuitry, an analog-to-digital converter, an anti-aliasing filter, power management, and an industry-standard 24-bit I2S interface. The I2S interface enables direct connection to digital processors like DSPs and microcontrollers without requiring an audio codec in the system. With a high signal-to-noise ratio, it is an excellent choice for near-field applications. Its flat, wideband frequency response delivers natural sound with high clarity.
Key Performance:
Digital I2S interface with high-precision 24-bit data
High signal-to-noise ratio: 61 dBA
High sensitivity: -26 dBFS
Frequency response: Stable response from 60 Hz to 15 kHz
Low power consumption: 1.4 mA
High PSR: -72 dBFS
Can be soldered for breadboard use or directly surface-mounted
Applications: Suitable for smart speakers, voice assistants, and other smart home devices; voice capture; integration into wearable devices; acoustic monitoring in industrial environments.
Interface Definitions:
SCK: Serial data clock for I2S interface
WS: Serial word select for I2S interface
L/R: Left/Right channel selection:
Low: Microphone outputs signal on the left channel of the I2S frame.
High: Microphone outputs signal on the right channel.
SD: Serial data output for I2S interface
VCC: Input power supply, 1.6V to 3.6V
GND: Power ground
Connection to ESP32 Development Board:
This Module -- ESP32 Development Board
SCK -- GPIO14
SD -- GPIO32
WS -- GPIO15
L/R -- GND
GND -- GND
VDD -- VDD3.3
Product Listing:
1X Module
2X 3-pin header pins (Optional: unpopulated headers/pre-soldered headers)
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