ICS-40720 datasheet(1/16 Pages) ETC2

Part #	ICS-40720

Description	Ultra?륧ow Noise Microphone with Differential Output

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ICS‐40720

Ultra‐Low Noise Microphone with Differential Output

InvenSense reserves the right to change the detail

specifications as may be required to permit improvements

in the design of its products.

InvenSense Inc.

1745 Technology Drive, San Jose, CA 95110 U.S.A

+1(408) 988–7339

www.invensense.com

Document Number: DS‐000045

Revision: 1.3

Rev Date: 1/20/16

GENERAL DESCRIPTION

The ICS‐40720 is an ultra‐low noise, differential analog

output, bottom‐ported MEMS microphone. The ICS‐40720

includes a MEMS microphone element, an impedance

converter, a differential output amplifier and an enhanced RF

package. The ICS‐40720’s 70 dB SNR and ±2 dB sensitivity

tolerance make it an excellent choice for microphone arrays

and far field voice control applications.

The ICS‐40720 has a linear response up to 124 dB SPL with a

differential output sensitivity specification of −32 dBV. It can

be used in a single‐ended mode with −38 dBV sensi vity and

the same high SNR.

The ICS‐40720 is available in a small 4.00 mm × 3.00 mm ×

1.20 mm surface‐mount package.

APPLICATIONS



Smartphones



Tablet Computers



Teleconferencing Systems



Digital Still and Video Cameras



Bluetooth Headsets



Security and Surveillance



Microphone Arrays



Voice Control and Activation

FEATURES



Ultra‐High 70 dBA SNR



−32 dBV Differential Sensitivity, −38 dBV Single‐

Ended Sensitivity



±2 dB Sensitivity Tolerance



Small 4 × 3 × 1.2 mm Surface‐Mount Package



Non‐Inverted Signal Output



Extended Frequency Response from 75 Hz to 20 kHz



Enhanced RF Performance



285 µA Current Consumption



124 dB SPL Acoustic Overload Point



−77 dBV PSR



Compatible with Sn/Pb and Pb‐Free Solder Processes



RoHS/WEEE Compliant

FUNCTIONAL BLOCK DIAGRAM

ORDERING INFORMATION

PART

TEMP RANGE

PACKAGING

ICS‐40720

−40°C to +85°C

13” Tape and Reel

EV_ICS‐40720‐FX

—

OUTPUT

AMPLIFIER

ICS-40720

POWER

VDD GND

OUTPUT+

OUTPUT−

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ICS-40720 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

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