High signal-to-noise ratio (65dBA), clear pickup. Ultra low power consumption, suitable for battery powered devices. Wide voltage range (1.5V-3.6V), compatible with multiple MCUs. I2S digital output reduces analog signal interference. Ultra small size, suitable for compact design. ICS-43434 is a high-performance MEMS digital microphone with I2S digital output, featuring high signal-to-noise ratio (SNR), low power consumption, and wide frequency response. It is suitable for smart voice devices, recording systems, IoT products, and other applications. Interface type: I2S (compatible with PDM mode) Signal to Noise Ratio (SNR): 65dBA Sensitivity: -26 dBFS Frequency response: 50Hz-20kHz Working voltage: 1.5V-3.6V (recommended 1.8V/3.3V) Power consumption: 1.5mA (typical value) Directionality: Omnidirectional AOP (Acoustic Overload Point): 120dB SPL Size: 16.5mm x 12.3mm x 1.6mm Typical applications: Smart voice devices: smart speakers, voice assistants, phone/tablet/TWS headphone microphone arrays Smart home: voice control, security monitoring Recording equipment: portable recording pen, conference microphone IoT devices: wearable devices, drones Pin Definition (Pinout): (L/R): Left/right channel selection for stereo configuration (GND): Ground wire, power supply ground (VDD): Power input 1.5V-3.6V supply (SEL): Interface mode selection: High level=I2S, Low level=PDM (BCLK): Bit clock (I2S) synchronous clock signal (DOUT): Data output, digital audio signal output Color: Black Material: PCB Package Contents: 1 x Microphone Module