GY-SPH0645LM4H I2S Microphone Module

Product detailed description

GY-SPH0645LM4H is a compact digital microphone module that uses the I²S bus to transmit audio signals directly in digital form, eliminating the need for analogue processing and ensuring high sound quality with low noise. The module is ideal for projects with microcontrollers such as ESP32, Arduino or Raspberry Pi, and is suitable for applications such as voice control, sound recording or speech recognition.

Specifications:

• Model: GY-SPH0645LM4H
• Directional characteristic: Omnidirectional
• Microphone type: MEMS digital microphone
• Communication: I²S digital interface
• Supply voltage: 1.6–3.6 V DC
• Current consumption: 600μA
• Sampling resolution: 24bit - 18bit data + other LSB zero
• Sensitivity: -26dBFS
• Power supply noise rejection PSR: -86dBFS
• Frequency range: 20Hz-10kHz
• SNR (signal/noise ratio): approx. 65 dB
• Dynamic range: 105 dB
• Module dimensions: approx. 16 × 11 mm

Package contents:

• 1× I2S microphone module GY-SPH0645LM4H
• 1x Pin header 6pin

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.
• For optimal performance, it is recommended to use a high-quality power supply and minimise interference on the signal line.