DFK-30059-000

Speakers Overview

The Knowles DFK-30059-000 is a digital MEMS microphone designed for high-fidelity audio capture in consumer electronics. It features a sound pressure level (SPL) of 124 dB and a signal-to-noise ratio (SNR) of 67 dBA. The device operates within a frequency range of 50 Hz to 20 kHz, with a sensitivity of -26 dBFS re 1V/Pa. It utilizes a PDM interface for digital output and functions at a supply voltage of 1.8 V. The component is housed in a compact 4-pin LGA package measuring 2.8 x 2.8 x 0.9 mm, ensuring minimal footprint integration.

Speakers Feature Summary

• High signal-to-noise ratio for clear audio recording
• Digital PDM interface for direct connection to processors
• Compact surface-mount package for space-constrained designs

Speakers Applications

• Smartphones and mobile devices
• Voice assistants and smart speakers
• Laptops and tablets

Speakers Procurement Notes

Verify the specific suffix codes on the ordering part number to confirm tape-and-reel packaging quantities and moisture sensitivity levels. Ensure compatibility with the target PCB layout regarding acoustic venting requirements. Cross-reference the manufacturer's latest datasheet revision to confirm RoHS compliance status and recommended soldering profiles before finalizing procurement orders.

Speakers Selection Notes

Select this component when high SNR and wide dynamic range are critical for voice recognition accuracy. The digital PDM output eliminates analog noise susceptibility, making it suitable for noisy environments. Evaluate the acoustic port design on the host device to ensure optimal sound transmission to the microphone diaphragm, as performance depends heavily on proper mechanical mounting.

Speakers Part Context

This model belongs to Knowles' digital MEMS microphone portfolio, engineered for modern mobile and IoT applications. It replaces older analog counterparts by providing integrated amplification and ADC functionality. The series is characterized by low power consumption and robust performance across varying temperature ranges, supporting diverse audio processing needs.

Speakers Replacement Considerations

Consult official substitution lists for pin-compatible alternatives such as other Knowles digital MEMS microphones with similar acoustic specifications. Verify that any substitute maintains the same PDM data format and clock requirements to avoid firmware modifications.