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

date 04/13/2023 | page 3 of 7

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CMC -2742PBJ-A

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ELECTRICAL

parameter

conditions/description

min

typ

max

units

directivity

omnidirectional

sensitivity (S)

f = 1 kHz, 1 Pa, 0 dB = 1 V/Pa

-45

-42

-39

dB

supply voltage (VDD)

2

10

Vdc

current consumption (IDSS)

Vs = 2.0 Vdc, RL = 2.2 kΩ

400

µA

sensitivity reduction

f = 1 kHz, 1 Pa, Vs = 2.0 ~ 1.5 Vdc

-3

dB

frequency (f)

100

20,000

Hz

signal to noise ratio (S/N)

f = 1 kHz, 1 Pa, A-weighted

58

dBA

output impedance (Zout)

f = 1 kHz, 1 Pa

2.2

kΩ

Notes:

1. All specifications measured at 23±2°C, humidity at 55±20%, unless otherwise noted.

FREQUENCY RESPONSE CURVE

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