ICS-40740 Ultra-Low Noise Microphone with High Dynamic Range APPLICATIONS GENERAL DESCRIPTION Tablet Computers The ICS-40740 is an ultra-low noise, high dynamic range, Teleconferencing Systems differential analog output, bottom-ported MEMS Digital Still and Video Cameras microphone. The ICS-40740 includes a MEMS microphone Communication Headsets element, an impedance converter, a differential output Security and Surveillance amplifier and an enhanced RF package. The ICS-40740s 70 dB Microphone Arrays SNR and 1 dB sensitivity tolerance make it an excellent Voice Control and Activation choice for microphone arrays and far field voice control applications. FEATURES The ICS-40740 has a linear response up to 132.5 dB SPL with a Ultra-High 70 dBA SNR differential output sensitivity specification of 37.5 dBV. 37.5 dBV Sensitivity 1 dB Sensitivity Tolerance The ICS-40740 is available in a small 4.00 mm 3.00 mm Small 4 3 1.2 mm Surface-Mount Package 1.20 mm surface-mount package. Extended Frequency Response from 80 Hz to 20 kHz 165 A Current Consumption 132.5 dB SPL Acoustic Overload Point 87 dBV PSR Compatible with Sn/Pb and Pb-Free Solder Processes RoHS/WEEE Compliant FUNCTIONAL BLOCK DIAGRAM ORDERING INFORMATION PART TEMP RANGE PACKAGING ICS-40740 40C to +85C 13 Tape and Reel OUTPUT+ OUTPUT EV ICS-40740-FX AMPLIFIER OUTPUT POWER ICS-40740 ICS-40720 VDD GND InvenSense Inc. InvenSense, Inc. reserves the right to change the detail Document Number: DS-000250 1745 Technology Drive, San Jose, CA 95110 U.S.A specifications as may be required to permit Revision: 1.0 +1(408) 9887339 improvements in the design of its products.. www.invensense.com Release Date: 09/07/2018 ICS-40740 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 .................................................................................................................................................................... 4 Table 2. Absolute Maximum Ratings ........................................................................................................................................... 4 ESD Caution ................................................................................................................................................................................. 4 Soldering Profile........................................................................................................................................................................... 5 Table 3. Recommended Soldering Profile* .................................................................................................................................. 5 Pin Configurations And Function Descriptions ....................................................................................................................................... 6 Table 4. Pin Function Descriptions ............................................................................................................................................... 6 Typical Performance Characteristics ....................................................................................................................................................... 7 Theory Of Operation ............................................................................................................................................................................... 8 Balanced Output .......................................................................................................................................................................... 8 Applications Information ........................................................................................................................................................................ 8 Codec Connection ........................................................................................................................................................................ 8 Supporting Documents ........................................................................................................................................................................... 9 Evaluation Board User Guide ....................................................................................................................................................... 9 Application Notes ........................................................................................................................................................................ 9 PCB Design And Land Pattern Layout ................................................................................................................................................... 10 PCB Material And Thickness ...................................................................................................................................................... 10 Handling Instructions ............................................................................................................................................................................ 11 Pick And Place Equipment ......................................................................................................................................................... 11 Reflow Solder ............................................................................................................................................................................. 11 Board Wash................................................................................................................................................................................ 11 Outline Dimensions ............................................................................................................................................................................... 12 Ordering Guide .......................................................................................................................................................................... 12 Revision History ......................................................................................................................................................................... 13 Compliance Declaration Disclaimer ...................................................................................................................................................... 14 Page 2 of 14 Document Number: DS-000250 Revision: 1.0