date 04/13/2023

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MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT

cuidevices.com

FEATURES

• 4 detachable evaluation boards

• 1 noise cancelling, 1 unidirectional, & 2 omnidirectional ECM’s included

• plated through hole I/O terminals for multiple testing options

EVAL BOARD

circuit

technology

output

acoustic

size

sensitivity

current

port

dia

(mm)

typ

(dB)

typ

(

μA)

CMC-2742PBJ-A

MIC5

ECM

analog

top

6.0

-42

400

CMR-2747PB-A

MIC6

ECM

analog

top

6.0

-47

500

CMC-6015-47P

MIC7

ECM

analog

top

6.0

-47

500

CMEJ-0413-42-SMT-TR

MIC8

ECM

analog

top

4.0

-42

500

OPERATIONAL INSTRUCTIONS

The CUI Devices electret condenser microphone (ECM) evaluation board consists of four independent microphone evaluation circuits. One

of the microphones is constructed to be noise cancelling, one is constructed to provide unidirectional sound capture, and 2 are constructed

to provide omnidirectional sound capture. External bypass capacitors are included on the power supply rails of the evaluation boards and

DC blocking capacitors are placed in the analog output signal paths.

A DC power supply of 2~10 Volts should be connected between the VDD and GND pins for the ECM evaluation circuits. The recommended

operating voltage for all of the evaluation boards is 2 V.

Please refer to the respective data sheets for additional information regarding each of the microphones.

Additional Resources: Product Page