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.
STMicroelectronics has once again raised the bar in motion sensing with the launch of the LSM6DSV320X which is like no other IMU, designed to monitor and safeguard users in their individual surroundings and contexts.
Sensirion has introduced the STCC4, a revolutionary miniature sensor poised to redefine how we monitor indoor air quality.
Omron’s award-winning G9KA-1A-E relay family is redefining high-power switching for energy applications. Engineered for performance, safety, and compactness, this flagship SPST-NO relay handles up to 300A at 1,000V AC, making it ideal for EV chargers, UPS systems, and industrial inverters.
Discover the latest in efficient power conversion with the cost-effective STMicroelectronics DCP3601 buck converter and the STEVAL-3601CV1 evaluation board. The DCP3601 delivers up to 1 A load current across a wide 3.3 V to 36 V input range, making it ideal for diverse industrial applications. Its 1 MHz fixed switching frequency enables compact designs, while advanced EMI management and robust protection features ensure reliable operation even in demanding environments.
The Omron G6QG is a cutting-edge, compact PCB-mounted power relay engineered for high-performance switching in space-constrained environments. It stands out as the smallest relay in the industry capable of handling AC loads up to 480V and 55A, making it a powerful solution for demanding applications such as DC fast chargers, energy storage systems, and EV infrastructure.
The CX Series connector system from HIROSE conforms to the USB standard USB Type-C™, this standard is being widely adopted as a standard interface on many devices found in consumer, industrial and automotive markets.
KYOCERA AVX’s has expanded its 3dB 90° hybrid couplers – the DB0402 adds a miniature 0402 size package to the family which already includes the DB0603, and DB0805 series – engineered to meet the growing demands of high-frequency wireless systems across industrial, automotive, telecommunications, and telemetry sectors.