MP45DT02 Digital MEMS Microphone

The MP45DT02 from STMicroelectronics is a high-quality, compact, low-power digital MEMS (Micro-Electro-Mechanical Systems) microphone that is ideal for a range of audio capture applications. This microphone stands out for its exceptional sound quality combined with robustness and reliability, making it a preferred choice for manufacturers and designers of advanced audio systems.

Key Features

• Acoustic overload point: 120 dB SPL typ
• 62 dB signal-to-noise ratio
• Omni-directional sensitivity
• Power supply voltage range: 1.64 V to 3.6 V
• Low power consumption: 1.8 mA max
• PDM (Pulse Density Modulation) single-bit output
• Extended frequency response from 20 Hz to 20 kHz
• High PSRR (Power Supply Rejection Ratio): -80 dB FS
• Temperature range: -40 °C to +85 °C
• HCLGA (Heterogeneous Closed-Loop Gallium Arsenide) package

Applications

The MP45DT02 is versatile and can be used in a variety of applications, such as:

• Smartphones and tablets
• Wearable devices
• Smart home devices
• Noise-cancellation systems
• Bluetooth headsets
• Voice recognition and voice control interfaces
• Audio recording for cameras and camcorders

Design and Integration

The microphone's small footprint and low profile design, along with its PDM digital output, make it easy to integrate into various electronic devices. Its compatibility with the SMD (Surface-Mount Device) manufacturing process ensures that it can be easily implemented in automated production lines, which is beneficial for high-volume applications. The MP45DT02's advanced MEMS technology offers high reliability and excellent audio performance, making it an outstanding solution for any project that requires a miniature microphone with digital output.