EM-9745UN

Microphones Overview

The EM9745 is an omnidirectional electret condenser microphone manufactured by Soberton. It features low impedance and operates with a maximum current consumption of 0.5mA at a standard voltage of 4.5V. The device offers a signal-to-noise ratio exceeding 60dB, with sensitivity reduction within -3dB at 1.5V. Sensitivity options include -34 ± 3dB, -36 ± 3dB, -38 ± 3dB, -40 ± 3dB, -42 ± 3dB, and -44 ± 3dB, referenced to 0dB = 1V/Pa at 1KHz.

Microphones Feature Summary

• Omnidirectional acoustic pickup pattern
• Electret condenser transducer technology
• Low impedance output characteristic
• Standard operation at 4.5V with minimal current draw

Microphones Applications

• Audio recording devices
• Voice recognition systems
• Consumer electronics audio input
• Telecommunication handsets

Microphones Procurement Notes

Verify the specific sensitivity variant required, as the component is available in multiple steps ranging from -34dB to -44dB. Confirm the package type, noting that EM9745P may denote a specific packaging or mounting configuration distinct from the base EM9745 part number. Ensure compatibility with the target circuit's biasing requirements for the 4.5V standard operation voltage.

Microphones Selection Notes

Select this microphone for applications requiring omnidirectional sound capture with low power consumption. The wide range of sensitivity options allows customization for varying acoustic environments. The low impedance feature facilitates direct interfacing with various amplifier inputs without complex matching networks. Verify that the operating voltage aligns with the system's power supply rails.

Microphones Part Context

The EM9745 belongs to Soberton's line of electret condenser microphones designed for general audio applications. It is engineered to provide consistent performance across various consumer and industrial audio devices. The product family emphasizes reliability and ease of integration into compact electronic assemblies.

Microphones Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.