ADMP441 datasheet, PDF - EEWORLD Datasheet

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ADMP441: DescriptionSPECIALTY ANALOG CIRCUIT, PBGA9; Categorysemiconductor Analog mixed-signal IC; File Size275KB，16 Pages; ManufacturerADI; Websitehttps://www.analog.com

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ADMP441 Overview

SPECIALTY ANALOG CIRCUIT, PBGA9

ADMP441 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	9
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	3.3 V
Minimum supply/operating voltage	1.8 V
Rated supply voltage	2.4 V
Processing package description	4.72 X 3.76 MM, 1 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, LGA-9
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
packaging shape	RECTANGULAR
Package Size	GRID ARRAY, THIN PROFILE
surface mount	Yes
Terminal form	BUTT
Terminal spacing	1.05 mm
terminal coating	GOLD
Terminal location	BOTTOM
Packaging Materials	PLASTIC/EPOXY
Temperature level	INDUSTRIAL
Analog IC other types	ANALOG CIRCUIT

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Data Sheet

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 mm × 3.76 mm × 1 mm surface-mount package

Compatible with Sn/Pb and Pb-free solder processes

RoHS/WEEE compliant

Omnidirectional Microphone with

Bottom Port and I

S Digital Output

ADMP441

FUNCTIONAL BLOCK DIAGRAM

ADMP441

ADC

FILTER

SERIAL

PORT

SCK

POWER

MANAGEMENT

HARDWARE

CONTROL

GND

CHIPEN

L/R

Figure 1.

APPLICATIONS

Teleconferencing systems

Gaming consoles

Mobile devices

Laptops

Tablets

Security systems

09568-001

BOTTOM

TOP

Figure 2. Isometric Views of

ADMP441

Microphone Package

GENERAL DESCRIPTION

The

ADMP441

is a high performance, low power, digital output,

omnidirectional MEMS microphone with a bottom port. The

complete

ADMP441

solution consists of a MEMS sensor, signal

conditioning, an analog-to-digital converter, antialiasing filters,

power management, and an industry standard 24-bit I2S inter-

face. The I2S interface allows the

ADMP441

to connect directly

to digital processors, such as DSPs and microcontrollers, with-

out the need for an audio codec in the system.

The

ADMP441

has a high SNR and high sensitivity, making it

an excellent choice for far field applications. The ADMP441 has

a flat wideband frequency response, resulting in natural sound

with high intelligibility. A built-in particle filter provides high

reliability.

The

ADMP441

is available in a thin 4.72 mm × 3.76 mm ×

1 mm surface-mount package. It is reflow solder compatible

with no sensitivity degradation. The

ADMP441

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.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

09568-015

ADMP441

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

I2S Digital Input/Output.............................................................. 4

Timing Diagram ........................................................................... 4

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics ............................................. 7

Theory of Operation ........................................................................ 8

Data Sheet

Understanding Sensitivity ............................................................8

Power Management ......................................................................8

Startup.............................................................................................8

I2S Data Interface ..........................................................................8

Digital Filter Characteristics ..................................................... 10

Applications Information .............................................................. 11

Power Supply Decoupling ......................................................... 11

Handling Instructions................................................................ 11

Supporting Documentation...................................................... 11

Layout and Design Recommendations........................................ 12

Outline Dimensions ....................................................................... 13

Ordering Guide .......................................................................... 13

REVISION HISTORY

1/12—Rev. 0 to Rev. A

Changes to Circuit Note Title ....................................................... 11

Updated Outline Dimensions ....................................................... 13

Deleted Figure 18............................................................................ 13

10/11—Revision 0: Initial Version

Rev. A | Page 2 of 16

ADMP441 Related Products

	ADMP441	ADMP441ACEZ-RL	ADMP441ACEZ-RL7
Description	SPECIALTY ANALOG CIRCUIT, PBGA9	SPECIALTY ANALOG CIRCUIT, PBGA9	SPECIALTY ANALOG CIRCUIT, PBGA9
Number of functions	1	1	1
Number of terminals	9	9	9
Maximum operating temperature	85 Cel	85 Cel	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel
Maximum supply/operating voltage	3.3 V	3.3 V	3.3 V
Minimum supply/operating voltage	1.8 V	1.8 V	1.8 V
Rated supply voltage	2.4 V	2.4 V	2.4 V
Processing package description	4.72 X 3.76 MM, 1 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, LGA-9	4.72 X 3.76 MM, 1 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, LGA-9	4.72 X 3.76 MM, 1 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, LGA-9
Lead-free	Yes	Yes	Yes
EU RoHS regulations	Yes	Yes	Yes
China RoHS regulations	Yes	Yes	Yes
state	ACTIVE	ACTIVE	ACTIVE
packaging shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package Size	GRID ARRAY, THIN PROFILE	GRID ARRAY, THIN PROFILE	GRID ARRAY, THIN PROFILE
surface mount	Yes	Yes	Yes
Terminal form	BUTT	BUTT	BUTT
Terminal spacing	1.05 mm	1.05 mm	1.05 mm
terminal coating	GOLD	GOLD	GOLD
Terminal location	BOTTOM	BOTTOM	BOTTOM
Packaging Materials	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Analog IC other types	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT

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