WM7132PE Bottom Port Analog Silicon Microphone DESCRIPTION FEATURES The WM7132P is a low-profile silicon analog microphone. It High SNR (65dB) offers high Signal to Noise Ratio (SNR) and low power Low variation in sensitivity (1dB tolerance) consumption and is suited to a wide variety of consumer Matched pair with Top Port microphone WM7121P applications. - Matched sensitivity, roll-off, and phase response The WM7132P incorporates Cirrus proprietary Low current consumption (190A) CMOS/MEMS membrane technology, offering high reliability Analog output and high performance in a miniature, low-profile package. Bottom Port LGA Package The WM7132P is designed to withstand the high temperatures associated with automated flow solder 1.5V to 3.7V supply assembly processes. (Note that conventional microphones can be damaged by this process.) APPLICATIONS The WM7132P Bottom Port microphone offers matched performance to the WM7121P Top Port microphone. The Mobile phone handsets matched characteristics enable highly accurate sound pick- Portable media players up in opposite directions, suitable for noise cancellation and Digital still cameras other DSP algorithms. Digital video cameras The WM7132P offers a tight tolerance on the microphone Bluetooth headsets sensitivity, giving reduced variation between parts. This Portable navigation devices removes the need for in-line production calibration of part-to- part microphone variations. Portable games consoles BLOCK DIAGRAM 3D VIEW VDD WM7132P CHARGE PUMP AMP OUTPUT CMOS MEMS Transducer 3.76mm x 3.00mm x 1.10mm LGA package GND Rev 4.0 Copyright Cirrus Logic, Inc., 2014 2015 MAR 15 WM7132PE TABLE OF CONTENTS DESCRIPTION ................................................................................................................ 1 FEATURES ..................................................................................................................... 1 APPLICATIONS ............................................................................................................. 1 BLOCK DIAGRAM ......................................................................................................... 1 3D VIEW ......................................................................................................................... 1 TABLE OF CONTENTS .................................................................................................. 2 PIN CONFIGURATION ................................................................................................... 3 PIN DESCRIPTION ......................................................................................................... 3 ORDERING INFORMATION ........................................................................................... 3 ABSOLUTE MAXIMUM RATINGS ................................................................................. 4 IMPORTANT ASSEMBLY GUIDELINES ....................................................................... 4 RECOMMENDED OPERATING CONDITIONS .............................................................. 4 ACOUSTIC AND ELECTRICAL CHARACTERISTICS .................................................. 5 TERMINOLOGY ......................................................................................................................... 5 TYPICAL PERFORMANCE ............................................................................................ 6 APPLICATIONS INFORMATION ................................................................................... 7 RECOMMENDED EXTERNAL COMPONENTS ........................................................................ 7 OPTIMISED SYSTEM RF DESIGN ........................................................................................... 7 CONNECTION TO A CIRRUS AUDIO CODEC ......................................................................... 8 MATCHED MICROPHONE PAIRS ............................................................................................ 8 PCB LAND PATTERN AND PASTE STENCIL .......................................................................... 9 PACKAGE DIMENSIONS ............................................................................................. 10 IMPORTANT NOTICE .................................................................................................. 11 REVISION HISTORY .................................................................................................... 12 2 Rev 4.0