Generic GY-SPH0645LM4H I2S Digital Audio MEMS Microphone Sensor Module
The GY-SPH0645LM4H is a digital I2S MEMS microphone sensor module operating at 3.3V DC, designed for direct integration with ESP32, Raspberry Pi, STM32, and other microcontrollers for high-fidelity voice capture and audio analysis applications.
Features
- Digital I2S interface delivers 24-bit audio data, eliminating analog noise and interference.
- Features the SPH0645 MEMS microphone with a wide 50Hz–15kHz frequency response and 65dB SNR.
- Operates at 3.3V DC and supports stereo channel selection via a configurable SEL pin.
- Compact 15mm x 15mm form factor ideal for embedded audio in portable devices and IoT nodes.
- Directly compatible with popular development platforms including ESP32, Raspberry Pi, and STM32.
Out of stock
The GY-SPH0645LM4H module integrates a SPH0645 MEMS microphone element, which converts acoustic pressure into a digital PCM signal via an on-chip analog-to-digital converter. This digital output is transmitted over the standard I2S (Inter-IC Sound) bus, providing a clean, noise-immune audio stream suitable for demanding signal processing tasks. The module’s all-digital pathway from the MEMS transducer to the I2S output pins ensures signal integrity is maintained, even in electrically noisy environments common to embedded systems.
Designed for 3.3V logic systems, the module includes a SEL pin for configuring the I2S channel as left (SEL to GND) or right (SEL to 3.3V), enabling stereo array setups. Its performance parameters, including a -26 dBFS sensitivity and support for standard sampling rates up to 44.1kHz, make it suitable for applications requiring precise audio capture and analysis without the complexity of external ADC circuits.
Additional Information
| Weight | 0.001 kg |
|---|---|
| Dimensions | 1.5 × 1.5 × 0.2 cm |
