Quantity : 1
High-concerned chemical : none
Package : SOP
is_d : Yes
Supply Voltage : 1.6-3.6V
Type : Module
Origin : Mainland China
Condition : New
Operating Temperature : 0-50C
1. Omnidirectional digital pickup: With high signal-to-noise ratio, flat broadband frequency response, and high clarity of collected sound.
2. Easy to use: The I2S interface allows it to be directly connected to a digital processor, simplifying system design.
3. High anti-interference ability: The power suppression ratio reaches -72 dBFS, and the output remains faithful even in strong noise environments.
4. Intelligent channel configuration: L/R pin level switches between left and right channels, flexibly adapting to stereo systems.
5. Widely applicable: Suitable for various speech collection scenarios, suitable for smart speakers, AI speech development and other scenarios.
This sensor is a high-performance, low-power, digital output, omnidirectional MEMS microphone with a bottom port, compatible with INMP441.
Composed of a MEMS sensor, signal modulation, analog-to-digital converter, anti aliasing filter, power management, and industry standard 24 bit I2S interface. The I2S interface allows it to be directly connected to digital processors such as DSP and microcontrollers without the need for audio codecs used in the system. With high signal-to-noise ratio, it is an excellent choice for near-field applications. Having a flat broadband frequency response, resulting in high clarity of natural sound.
Key Features:
Input power supply 1.6V to 3.6V
Digital I2S interface with high-precision 24 bit data
High signal-to-noise ratio of 61 dBA
High sensitivity -26 dBFS
Stable frequency response from 60 Hz to 15 kHz
Low power consumption: low current consumption of 1.4 mA
High PSRR: -72 dBFS
Interface definition:
SCK: Serial Data Clock for I2S Interface
WS: Serial Data Word Selection for I2S Interface
L/R: Left/Right Channel Selection:
When set to low level, the microphone outputs a signal in the left channel of the I2S frame.
When set to high level, the microphone outputs a signal in the right channel.
SD: Serial data output of I2S interface
VDD: Input power supply, 1.6V to 3.6V
GND: Power Ground
Connecting with ESP32 development board:
This module - ESP32 development board
SCK -- GPIO14
SD -- GPIO32
WS -- GPIO15
L/R -- GND
GND -- GND
VDD -- VDD3.3
1/3X module
2/6X3pin pin arrangement (optional non welded pin arrangement/welded pin arrangement)
label:yes