The module is designed for reliable, lowpower audio capture in embedded and batterypowered systems. It delivers clear, adjustable microphone performance with straightforward interfacing to common microcontrollers and ADCs. Key benefits Broad compatibility with singlesupply systems Supply voltage range: 2.7 V to 5.5 V Current consumption: 3 mA during operation Ideal for microcontroller projects and compact devices that run on limited power Easy interfacing and signal usability Output: 2 V peaktopeak (2 Vpp) signal with a 1.25 V bias Facilitates direct coupling to typical ADCs and singlesupply audio circuits without complex level shifting Wide and natural audio capture Frequency response: 20 Hz to 20 kHz Captures the full range of audible sound, from deep bass to treble, suitable for speech and general audio Adaptable automatic gain control Automatic gain with selectable maximum gains of 40 dB, 50 dB, or 60 dB Enables consistent listening levels across environments without manual gain adjustments What it solves for you Enables lowpower, batteryfriendly audio input for portable devices Reduces the need for external preamps or manual gain configuration Provides a readytointerface output for common microcontroller and ADC workflows Supports clear voice capture in varying loudness conditions thanks to adjustable gain 23 practical use scenarios Batterypowered voice assistant or wakeword device Use the module to capture user commands with adjustable gain for different room acoustics, all from a single 2.7–5.5 V supply. Portable data logger or field recorder Integrate into a handheld or compact recorder that requires low power and wide dynamic range, enabling reliable audio capture over long deployments. Embedded conferencing or PC peripheral Use as a compact microphone input for a microcontrollerbased conferencing accessory or a USBC/USBA compatible peripheral, providing stable 2 Vpp output and automatic gain control. Notes on compatibility and performance Designed for operation from 2.7 V to 5.5 V with a low 3 mA current draw, making it suitable for a range of lowpower electronics. The 2 Vpp output with a 1.25 V bias simplifies integration with singlesupply systems and standard analogtodigital converters. The broad 20 Hz to 20 kHz frequency range supports both speech and general audio applications. The automatic gain control with 40/50/60 dB options offers flexibility to optimize loudness and clarity across different use cases without manual tuning.