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Microphones

The MP34DT01 is a preamplified digital output microphone with an on-chip ADC. This MEMS device is capable of both voice recording and speech recognition, making it suitable for a variety of applications such as voice input in consumer electronic devices and voiceprinting for biometric identification. Due to its integrated circuitry and output capability, the MP34DT01 is a very versatile microphone.

Application Field

The MP34DT01 microphone is capable of recording sound ranging from 20 Hz - 20 kHz, making it suitable for a variety of applications including portable electronic devices such as digital recorders, computer mics, gaming, voice-over-IP, and more. It can also be used for speech recognition, providing high accuracy and fast response times.

Working Principle

The MP34DT01 is a fully integrated MEMS device with a built-in AD converter. It consists of a back plate, diaphragm, a shadow mask, signal processing circuitry, and a 16-bit ADC. The back plate and the diaphragm are made of an extremely thin film of polyimide, which is designed to convert sound waves into electrical signals. The shadow mask is designed to filter out unwanted frequencies, and the signal processing circuitry amplifies these signals and sends them to the 16-bit ADC. The ADC then converts the electrical signals into digital values which can be read by an external processor

The MP34DT01 is suitable for a variety of applications due to its low power consumption and integrated design. Its integrated ADC ensures high audio quality and accuracy, even in noisy environments, making it suitable for speech recognition applications. It also has a wide range of frequency response, making it suitable for speech or music recording. The device has a low-voltage output, which is suitable for low-power portable devices.

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