The MP23DB02MM from STMicroelectronics is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface with optional stereo configuration.
The sensing element of the MP23DB02MM is capable of detecting acoustic waves and is manufactured using a specialized silicon micromachining process dedicated to produce audio sensors. The onboard IC interface is manufactured using a CMOS process that allowed STMicroelectronics to design a dedicated circuit that is able to provide a digital signal externally in PDM format.
The device has sensitivity of –26 dBFS typical with a narrow sensitivity range of ±1 dB, high SNR and low distortion for all operation modes. Acoustic overload point is specified at 122 dBSPL and the devices have good frequency response.
Normalized frequency response
The MP23DB02MM MEMS microphone offers multiple performance modes, power down, low power and normal mode, these are enabled by using different clock frequency ranges. Supply voltage range is 1.6 V to 3.6 V, current consumption in low-power mode is 285 µA and 800 µA in normal mode.
The MP23DB02MM is supplied in a bottom-port, SMD-compliant, EMI-shielded package and has an extended operating temperature range of -40 °C to +85 °C.
The MP23DB02MM ultra-compact, low-power, omnidirectional, digital MEMS microphones are suitable for a wide range of applications including communications devices, portable computing equipment, instrumentation, wearable and hearable devices, imaging equipment and security systems.
Evaluation Board
The MP23DB02MM is supported by the STEVAL-MIC005V1 daughterboard which contains four MP23DB02MM digital MEMS microphones and is designed to be used with the X-NUCLEO-CCA02M2 expansion board. Once the daughter board is connected with the X-NUCLEO-CCA02M2 expansion board, synchronized acquisition and streaming of up to 4 microphones through I²S, SPI, DFSDM or SAI peripherals is possible. The expansion board is compatible with the STMicroelectronics morpho connector layout and can accommodate a range of digital microphone daughter boards available from STMicroelectronics. The daughterboard and expansion board combination provides designers with a quick and easy solution for the development of microphone-based applications as well as a starting point for audio algorithm implementation.
Anglia are offering customers a FREE evaluation board and samples of the MP23DB02MM ultra-compact, low-power, omnidirectional, digital MEMS microphone from STMicroelectronics, please fill in the form below to register for evaluation kit and samples now.
Free samples are subject to availability.
As embedded systems continue to evolve, designers are increasingly challenged to deliver higher performance, stronger security, and longer battery life within increasingly compact products. Whether developing industrial sensors, smart building controls, healthcare devices, or connected IoT endpoints, selecting the right microcontroller is critical to achieving design goals. The latest STM32U3 microcontroller families from STMicroelectronics have been developed to address these challenges, combining modern processing capability with an energy-conscious architecture.
In today’s fast moving electronics world, robust circuit protection is essential for ensuring long-term reliability and safety. Taiwan Semiconductor’s latest snapback (Super Clamp) TVS technology incorporated into the LTD7S24CAH device marks a significant step forward in protecting sensitive circuits from transient voltage events.
STMicroelectronics have introduced the L6986I device, a high-performance synchronous buck converter that is designed for use in applications that require isolated power conversion.
HARTING has launched the new D-Sub PushPull housings. Designed to improve efficient and process-safe handling, the HARTING D-Sub PushPull transforms a well-known connector family into a simplified solution. The PushPull locking mechanism significantly improves the assembly process and reduces installation and maintenance time by up to 50%.
In the world of connected devices, one truth stands firm: even the smartest technology fails if it can’t survive the environment it’s built for. Rain, dust, vibration, UV—these forces don’t care how elegant your circuitry is. They’re relentless. That’s why CamdenBoss created Node & Hub: a new family of enclosures engineered not just to protect electronics, but to make every installation faster, cleaner, and smarter.
The EZPV Series from Panasonic delivers a highly versatile solution for DC Link and DC Filtering applications, offering a broad capacitance range and multiple operating voltage options.
The HIROSE BM54 series floating board‑to‑board connector is designed to absorb real‑world tolerances without sacrificing density.