InvenSense

ICS-40618 Datasheet Preview

ICS-40618 Datasheet

High Dynamic Range Microphone

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ICS‐40618

High Dynamic Range Microphone with Differential Output and Low Power

GENERAL DESCRIPTION

The ICS‐40618 is an analog MEMS microphone with very high

dynamic range and a low‐power AlwaysOn mode. The ICS‐

40618 includes a MEMS microphone element, an impedance

converter, and a differential output amplifier.

This microphone features a low‐power mode, which is active

when the supply voltage is <2.0 V. In this mode, the

ICS‐40618 operates with 55 µA.

Other high‐performance specifications include 132 dB SPL

acoustic overload point in high performance mode, tight

±1 dB sensitivity tolerance and enhanced immunity to both

radiated and conducted RF interference.

The ICS‐40618’s electro‐acoustic performance matches the

top port ICS‐40619, making this pair of microphones suitable

to use together in applications requiring both top and bottom

port devices.

The ICS‐40618 is available in a small 3.50 mm × 2.65 mm ×

0.98 mm bottom port surface‐mount package.

APPLICATIONS

 Smartphones

 “AlwaysOn” listening

 Wearable devices

 Still and video cameras

 IoT devices

FEATURES

SPEC HIGH PERFORMANCE LOW‐POWER

MODE

SNR 67 dBA

67 dBA

Current

165 µA

55 µA

AOP 132 dB SPL

129 dB SPL

 Differential non‐inverting analog output

 −38 dBV sensitivity (differential)

 ±1 dB sensitivity tolerance

 Extended frequency response from 50 Hz to 20 kHz

 Enhanced RF immunity

 −85 dB PSRR

 3.50 × 2.65 × 0.98 mm surface‐mount package

 Compatible with Sn/Pb and Pb‐free solder processes

 RoHS/WEEE compliant

FUNCTIONAL BLOCK DIAGRAM

ICS-40618

OUTPUT

AMPLIFIER

LOW-POWER

MODE SWITCHING

POWER

OUTPUT+

OUTPUT−

VDD GND

ORDERING INFORMATION

PART

TEMP RANGE

ICS‐40618

−40°C to +85°C

EV_ICS‐40618‐FX

—

PACKAGING

13” Tape and Reel

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‐000044

Revision: 1.0

Release Date: 3/21/2016

InvenSense

ICS-40618 Datasheet Preview

ICS-40618 Datasheet

High Dynamic Range Microphone

No Preview Available !

ICS‐40618

TABLE OF CONTENTS

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

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

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

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

Ordering Information ................................................................................................................................................................... 1

Table of Contents .................................................................................................................................................................................... 2

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

Table 1. Electrical Characteristics ................................................................................................................................................ 3

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

Table 2. Absolute Maximum Ratings ........................................................................................................................................... 5

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

Soldering Profile ........................................................................................................................................................................... 6

Table 3. Recommended Soldering Profile* .................................................................................................................................. 6

Pin Configurations And Function Descriptions ....................................................................................................................................... 7

Table 4. Pin Function Descriptions ............................................................................................................................................... 7

Typical Performance Characteristics ....................................................................................................................................................... 8

Theory Of Operation ............................................................................................................................................................................... 9

Low‐Power Mode......................................................................................................................................................................... 9

Balanced Output .......................................................................................................................................................................... 9

Applications Information ...................................................................................................................................................................... 10

Codec Connection ...................................................................................................................................................................... 10

Supporting Documents ......................................................................................................................................................................... 11

Evaluation Board User Guide ..................................................................................................................................................... 11

Application Notes ...................................................................................................................................................................... 11

PCB Design And Land Pattern Layout ................................................................................................................................................... 12

PCB Material And Thickness ...................................................................................................................................................... 12

Handling Instructions ............................................................................................................................................................................ 13

Pick And Place Equipment ......................................................................................................................................................... 13

Reflow Solder ............................................................................................................................................................................. 13

Board Wash ............................................................................................................................................................................... 13

Outline Dimensions ............................................................................................................................................................................... 14

Ordering Guide .......................................................................................................................................................................... 14

Revision History ......................................................................................................................................................................... 15

Compliance Declaration Disclaimer ...................................................................................................................................................... 16

Document Number: DS‐000044

Revision: 1.0

Page 2 of 16

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ICS-40618 Datasheet

High Dynamic Range Microphone

ICS-40618 Datasheet

High Dynamic Range Microphone

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