STMicroelectronics

MP34DT01

MP34DT01 Description

The MP34DT01 from STMicroelectronics is a high-performance MEMS digital microphone designed for precision audio capture in compact, power-sensitive applications. This omnidirectional microphone delivers PDM (Pulse Density Modulation) digital output, ensuring superior signal integrity with minimal external components. Operating within a 1.64V to 3.6V voltage range, it consumes just 600 µA, making it ideal for battery-powered devices. The microphone features a 63dB signal-to-noise ratio (SNR) and a frequency response of 100 Hz to 10 kHz, providing clear audio reproduction for voice and acoustic sensing. Encased in a 4.00mm x 3.00mm x 1.10mm rectangular package, it is one of the smallest digital MEMS microphones available, with a top-port design for optimal sound intake.

MP34DT01 Features

• Digital PDM Output: Simplifies integration with digital signal processors and microcontrollers.
• Omnidirectional Sensitivity: Captures sound uniformly from all directions.
• Ultra-Low Power: 600 µA supply current extends battery life in portable devices.
• Wide Voltage Range (1.64V–3.6V): Compatible with low-power and standard logic levels.
• High SNR (63dB): Ensures minimal noise interference for clear audio.
• Compact Footprint (4.00mm x 3.00mm): Fits space-constrained designs like wearables and IoT modules.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.

MP34DT01 Applications

The MP34DT01 excels in applications requiring small form factor, low power, and high-fidelity audio:

• Smartphones & Tablets: Integrated voice capture for calls and voice assistants.
• Wearable Devices: Fitness trackers, smartwatches, and hearing aids.
• IoT & Smart Home: Voice-controlled sensors, security systems, and ambient noise monitoring.
• Industrial Equipment: Acoustic diagnostics and machine condition monitoring.
• Automotive: In-cabin voice recognition and hands-free communication systems.

Conclusion of MP34DT01

The MP34DT01 stands out as a highly efficient, compact, and versatile MEMS microphone, combining low power consumption, robust digital output, and superior acoustic performance. Its omnidirectional sensitivity and wide voltage range make it a preferred choice for modern portable and embedded audio systems. Whether for consumer electronics, IoT, or industrial applications, the MP34DT01 delivers reliable, high-quality audio capture in a minimal footprint, backed by STMicroelectronics' proven MEMS technology.