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MEMS Microphones

Same Sky’s MEMS microphones are housed in compact packages as small as 2.75 x 1.85 x 0.90 mm. Featuring top or bottom ports with analog or digital pulse density modulation (PDM) outputs, these MEMS microphones are reflow solder compatible and carry sensitivity tolerances as low as ±1 dB. With a low current draw, reduced vibration sensitivity, and wide frequency ranges up to 20,000 Hz, our MEMS microphones provide you with improved audio quality and performance. An IPX7 rated model is also available.

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Output Type

Analog

Digital PDM

Reset

Port Location

Bottom

Top

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Sensitivity (dB)

-42

-38

-37

-26

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Sensitivity Tolerance (dB)

±1

±3

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Curr. Consumption (µA)

Min

Max

150

160

175

540

600

650

670

680

750

860

1120

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Operating Voltage (Vdc)

1.3 ~ 3.6

1.5 ~ 3.6

1.6 ~ 3.6

1.65 ~ 3.6

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Operating Freq. (Hz)

20 ~ 10000

20 ~ 20000

100 ~ 10000

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Signal : Noise Ratio (dBA)

Min

Max

Reset

Length (mm)

2.75

3.5

3.76

4.72

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Width (mm)

Min

Max

1.85

2.24

2.65

2.95

3.76

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Height (mm)

Min

Max

0.9

0.95

0.98

1.1

1.25

Reset

IP Rating

IPX7

No IP Rating

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Results 37

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	Directivity	Sensitivity (dB)	Sensitivity Tolerance (dB)	Operating Voltage (Vdc)	Operating Freq. (Hz)	Signal : Noise Ratio (dBA)	Termination	Shape	Dimensions LxWxH (mm)
CMM-2718AB-383161-TR	Omnidirectional	-38	±3	1.5 ~ 3.6	100 ~ 10000	61	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-2718AB-38108-TR	Omnidirectional	-38	±1	1.6 ~ 3.6	100 ~ 10000	65	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-2718AB-38308-TR	Omnidirectional	-38	±3	1.6 ~ 3.6	100 ~ 10000	65	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-2718AB-38316-TR	Omnidirectional	-38	±3	1.5 ~ 3.6	100 ~ 10000	61	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-3729AT-42308-TR	Omnidirectional	-42	±3	1.5 ~ 3.6	100 ~ 10000	57	Surface Mount	Rectangular	3.76 x 2.95 x 1.1
CMM-3729AT-42316-TR	Omnidirectional	-42	±3	1.3 ~ 3.6	100 ~ 10000	57	Surface Mount	Rectangular	3.76 x 2.95 x 1.1
CMM-3722AT-42116-TR	Omnidirectional	-42	±1	1.5 ~ 3.6	100 ~ 10000	57	Surface Mount	Rectangular	3.76 x 2.24 x 1.1
CMM-3125AT-42316-TR	Omnidirectional	-42	±3	1.6 ~ 3.6	100 ~ 10000	57	Surface Mount	Rectangular	2.75 x 1.85 x 1.1
CMM-2718AT-42116-TR	Omnidirectional	-42	±1	1.5 ~ 3.6	100 ~ 10000	57	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-2718AT-42316-TR	Omnidirectional	-42	±3	1.5 ~ 3.6	100 ~ 10000	57	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-2718AT-42108-TR	Omnidirectional	-42	±1	1.6 ~ 3.6	100 ~ 10000	60	Surface Mount	Rectangular	2.75 x 1.85 x 0.95
CMM-2718AT-42308-TR	Omnidirectional	-42	±3	1.6 ~ 3.6	100 ~ 10000	60	Surface Mount	Rectangular	2.75 x 1.85 x 0.95