CMA-4544PF-W

Overview

The CMA-4544PF-W is an analog omnidirectional electret condenser microphone manufactured by Same Sky. It features a circular shape with a diameter of 9.70 mm and a maximum height of 4.65 mm. The component operates within a voltage range of 3 V to 10 V, drawing a supply current of 500 µA. It delivers a sensitivity of -44 dB ±2 dB and achieves a signal-to-noise ratio of 60 dB. The frequency response spans from 20 Hz to 20 kHz, with an impedance value of 2.2 kOhms. Termination is provided via PC pin leads.

Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Analog output suitable for standard audio processing circuits
• Low power consumption profile optimized for battery operation

Applications

• Consumer electronic audio input devices
• Portable recording equipment
• Voice recognition systems

Procurement Notes

Verify the specific suffix configuration against official documentation to ensure compatibility with required sensitivity and impedance tolerances. Confirm that the PC pin termination style matches the target printed circuit board layout. Check for RoHS compliance status in the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when an omnidirectional pickup pattern is required for general ambient sound capture. Ensure the operating voltage aligns with the 3 V to 10 V specification. Consider the 2.2 kOhm impedance for proper preamplifier interface matching. Verify physical dimensions fit within the designated enclosure constraints.

Part Context

This microphone belongs to the CMA-4544 series of electret condenser microphones. The series offers various configurations tailored for different audio applications. This specific model provides balanced performance metrics for general-purpose voice and audio sensing tasks.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify electrical parameters such as sensitivity, impedance, and operating voltage match the original requirements before implementing any substitute part number.

FAQ

What is the directivity pattern of the CMA-4544PF-W?

The component features an omnidirectional acoustic pattern, allowing it to capture sound equally from all directions.

What are the electrical connection details for this microphone?

The device uses PC pin leads for termination and requires a DC supply voltage between 3 V and 10 V.