DFG-30852-000

Overview

The Knowles DFG-30852-000 is an analog unidirectional microphone assembly designed for precise acoustic signal capture. It features a super-cardioid polar pattern at 1kHz, ensuring focused sound reception with reduced rear sensitivity. The component operates within a voltage range of 1.3V to 3V and draws a current rating of 50 uA. Key electrical specifications include an impedance of 1.7 kOhms and a sensitivity of -69 dBA. This compact assembly integrates essential microphone elements into a single unit suitable for embedded audio applications.

Feature Summary

• Unidirectional acoustic design with super-cardioid polar pattern
• Integrated microphone assembly structure
• Low power consumption operation

Applications

• Embedded audio recording systems
• Voice recognition modules
• Communication devices requiring directional pickup

Procurement Notes

Verify the specific datasheet version from Knowles Electronics to confirm mechanical dimensions and pinout configurations. Ensure compatibility with the target operating voltage range of 1.3V to 3V. Cross-reference the impedance value of 1.7 kOhms with pre-amplifier requirements. Confirm RoHS compliance status if required by regulatory standards in the destination market.

Selection Notes

Select this component when a super-cardioid polar pattern is required to isolate sound sources from ambient noise. The low current draw of 50 uA makes it suitable for battery-powered devices. Ensure the interface circuitry supports the 1.7 kOhm impedance and -69 dBA sensitivity level. Verify that the physical form factor fits the designated enclosure space.

Part Context

This part belongs to the Knowles DFG series of microphone assemblies. These components are engineered for high-fidelity audio capture in compact electronic devices. The series typically offers various polar patterns and sensitivity levels to suit different acoustic environments and application requirements.

Replacement Considerations

Consult official Knowles documentation for direct cross-references. Verify that any substitute maintains the super-cardioid pattern and similar electrical parameters.