G-Sense ICS-43434 MEMS High Precision Omnidirectional Microphone Module I2S

The ICS-43434 is digital I2S output bottom port microphone and it’s a great replacement/alternate for INMP441. The complete ICS-43434 solution consists of a MEMS sensor, signal conditioning, an analog-to-digital converter, decimation and antialiasing filters, power management, and an industry standard 24-bit I²S interface. The I²S interface allows the ICS-43434 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for an audio codec in the system.The ICS-43434 has multiple modes of operation: HighPerformance, Low Power (AlwaysOn) and Sleep. The ICS-43434
has high SNR and 120 dB SPL AOP in all operational modes.

You can find more details about this board here : GSense-ICS43434 Documentation

G-sense ICS-43434 MEMS High Precision Omnidirectional Microphone Module I2S

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, the microphone outputs a signal on the left channel of the I2S frame.
When set to high level, the microphone outputs signals on the right channel
SD: Serial data output of the I2S interface.
VCC: Input power, 1.8V to 3.3V.
GND: power ground

ICS-43434 connection with ESP32 / GLYPH C6 Development Board

SCK -GPIO 20
SD – SCK
WS – MO
GND – GND
VDD – VDD3.3

Features:

Digital I2S interface with high precision 24-bit data
High signal to noise ratio is 65 dBA
High sensitivity – 26 dB
Stable frequency response from 23Hz to 51.6kHz
Low power consumption: low current consumption 230uA
AOP: 120 SPL

G-SENSE : ICS-43434 MEMS High Precision Omnidirectional Microphone I2S

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