Silicon Microphone. WM7121PE Datasheet

WM7121PE Microphone. Datasheet pdf. Equivalent

WM7121PE Datasheet
Recommendation WM7121PE Datasheet
Part WM7121PE
Description Top Port Analog Silicon Microphone
Feature WM7121PE; WM7121PE Top Port Analog Silicon Microphone DESCRIPTION The WM7121P is a low-profile silicon analo.
Manufacture Cirrus Logic
Datasheet
Download WM7121PE Datasheet




Cirrus Logic WM7121PE
WM7121PE
Top Port Analog Silicon Microphone
DESCRIPTION
The WM7121P 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 WM7121P incorporates Cirrus Logic® proprietary
CMOS/MEMS membrane technology, offering high reliability
and high performance in a miniature, low-profile package.
The WM7121P 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 WM7121P Top Port microphone offers matched
performance to the WM7132P Bottom Port microphone. The
matched characteristics enable highly accurate sound pick-
up in opposite directions, suitable for noise cancellation and
other DSP algorithms.
The WM7121P 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 (65dB)
Low variation in sensitivity (±1dB tolerance)
Matched pair with Bottom Port microphone WM7132P
- Matched sensitivity, roll-off, and phase response
Low current consumption (190µA)
Analog output
Top Port LGA Package
1.5V to 3.7V supply
APPLICATIONS
Mobile phone handsets
Portable media players
Digital still cameras
Digital video cameras
Bluetoothheadsets
Portable navigation devices
Portable games consoles
BLOCK DIAGRAM
WM7121P
VDD
CHARGE
PUMP
3D VIEW
CMOS MEMS
Transducer
AMP
GND
OUTPUT
3.76mm x 2.95mm x 1.10mm LGA package
http://www.cirrus.com
Copyright Cirrus Logic, Inc., 20142016
(All Rights Reserved)
Rev 4.1
MAR ‘16



Cirrus Logic WM7121PE
TABLE OF CONTENTS
WM7121PE
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 CODEC .....................................................................................8
MATCHED MICROPHONE PAIRS ............................................................................................8
PCB LAND PATTERN AND PASTE STENCIL ..........................................................................9
PACKAGE DIMENSIONS............................................................................................. 10
IMPORTANT NOTICE .................................................................................................. 11
REVISION HISTORY .................................................................................................... 12
2 Rev 4.1



Cirrus Logic WM7121PE
PIN CONFIGURATION
41
WM7121PE
32
Top View
PIN DESCRIPTION
PIN NAME
1 VDD
2 GND
3 GND
4 OUTPUT
TYPE
Supply
Supply
Supply
Analogue Output
DESCRIPTION
Analog Supply
Analog ground
Analog ground
Microphone analog output signal
ORDERING INFORMATION
ORDER CODE
TEMPERATURE
RANGE
WM7121PIMSE/RV
-40 to +100°C
Note:
Reel quantity = 5000
All devices are Pb-free and Halogen free.
PACKAGE
LGA
(tape and reel)
MOISTURE
SENSITIVITY LEVEL
MSL2A
PEAK SOLDERING
TEMPERATURE
+260°C
Rev 4.1
3







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)