Silicon Microphone. WM7331E Datasheet

WM7331E Microphone. Datasheet pdf. Equivalent

WM7331E Datasheet
Recommendation WM7331E Datasheet
Part WM7331E
Description Bottom Port Analog Silicon Microphone
Feature WM7331E; WM7331E Bottom Port Analog Silicon Microphone DESCRIPTION The WM7331 is a low-profile silicon anal.
Manufacture Cirrus Logic
Datasheet
Download WM7331E Datasheet




Cirrus Logic WM7331E
WM7331E
Bottom Port Analog Silicon Microphone
DESCRIPTION
The WM7331 is a low-profile silicon analog microphone. It
offers high Signal to Noise Ratio (SNR) and low power
consumption and is suited to a wide variety of consumer
applications.
The WM7331 incorporates Cirrus Logic® proprietary
CMOS/MEMS membrane technology, offering high reliability
and high performance in a miniature, low-profile package.
The compact integration of transducer and internal circuitry
on a single die enables implementation within an extremely
small package size.
The WM7331 is designed to withstand the high
temperatures associated with automated flow solder
assembly processes. (Note that conventional microphones
can be damaged by this process.)
The WM7331 offers tight tolerance on the microphone
sensitivity, giving reduced variation between parts. This
removes the need for in-line production calibration of part-to-
part microphone variations.
FEATURES
High SNR (63dB)
Low variation in sensitivity (±1dB tolerance)
Low current consumption (55µA)
Analog output
Bottom Port LGA Package
2.5mm x 1.6mm x 0.9mm package
1.6V to 3.6V supply
APPLICATIONS
Mobile phone handsets
Wearable devices
Portable media players
Digital cameras
BLOCK DIAGRAM
VDD
WM7331
3D VIEW
CHARGE
PUMP
CMOS MEMS Transducer
AMP
OUTPUT
2.50mm x 1.60mm x 0.90mm LGA package
GND
Pre-Production
http://www.cirrus.com
This document contains information for a product under
development. Cirrus Logic reserves the right to modify this
product.
Copyright Cirrus Logic, Inc., 20142016
(All Rights Reserved)
Rev 3.2
APR ‘16



Cirrus Logic WM7331E
TABLE OF CONTENTS
WM7331E
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
CONNECTION TO A CIRRUS LOGIC CODEC .........................................................................8
PCB LAND PATTERN AND PASTE STENCIL ..........................................................................9
PACKAGE DIMENSIONS............................................................................................. 10
IMPORTANT NOTICE .................................................................................................. 11
REVISION HISTORY .................................................................................................... 12
2 Rev 3.2



Cirrus Logic WM7331E
PIN CONFIGURATION
3
WM7331E
4
12
Top View
PIN DESCRIPTION
PIN NAME
1 VDD
2 OUTPUT
3 GND
4 GND
TYPE
Supply
Analog Output
Supply
DESCRIPTION
Analog supply
Microphone analog output signal
Analog ground
Can be left floating (recommended), or connected to GND
ORDERING INFORMATION
ORDER CODE
TEMPERATURE
RANGE
WM7331IMSE/RV
-40 to +100°C
Note:
Reel quantity = 6000
All devices are Pb-free and Halogen free.
PACKAGE
LGA
(tape and reel)
MOISTURE
PEAK SOLDERING
SENSITIVITY LEVEL TEMPERATURE
MSL2A
+260°C
Rev 3.2
3







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