INMP441

GENERAL DESCRIPTION

The INMP441 is a high-performance, low power, digital-output,

omnidirectional MEMS microphone with a bottom port. The

complete INMP441 solution consists of a MEMS sensor, signal

conditioning, an analog-to-digital converter, anti-aliasing filters,

power management, and an industry-standard 24-bit I²S interface.

The I²S interface allows the INMP441 to connect directly to digital

processors, such as DSPs and microcontrollers, without the need

for an audio codec in the system.

The INMP441 has a high SNR, making it an excellent choice for

near field applications. The INMP441 has a flat wideband

frequency response, resulting in natural sound with high

intelligibility.

The INMP441 is available in a thin 4.72 × 3.76 × 1 mm surface-

mount package. It is reflow- solder compatible with no sensitivity

degradation. The INMP441 is halide free.

*Protected by U.S. Patents 7,449,356; 7,825,484; 7,885,423; and 7,961,897.

Other patents are pending.

APPLICATIONS

•

Teleconferencing Systems

•

Remote Controls

•

Gaming Consoles

•

Mobile Devices

•

Laptops

•

Tablets

•

Security Systems

FEATURES

•

Digital I²S Interface with High-Precision 24-Bit Data

•

High SNR of 61 dBA

•

High Sensitivity of -26 dBFS

•

Flat Frequency Response from 60 Hz to 15 kHz

•

Low Current Consumption of 1.4 mA

•

High PSR of -75 dBFS

•

Small 4.72 × 3.76 × 1 mm Surface-Mount Package

•

Compatible with Sn/Pb and Pb-Free Solder Processes

•

RoHS/WEEE Compliant

FUNCTIONAL BLOCK DIAGRAM

ORDERING INFORMATION

PART

TEMP RANGE

INMP441ACEZ-R0*

−40°C to +85°C

INMP441ACEZ-R7†

−40°C to +85°C

EV_INMP441

—

EV_INMP441-FX

—

* – 13” Tape and Reel

† – 7” Tape and reel to be discontinued. Contact sales@invensense.com for

availability.

INMP441

ADC

POWER

MANAGEMENT

SCK

SD

WS

FILTER

SERIAL

PORT

HARDWARE

CONTROL

BOTTOM

TOP

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-INMP441-00

Revision: 1.1

Rev Date: 05/21/2014