WM7120IMS/RV Wolfson Microelectronics, WM7120IMS/RV Datasheet

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WM7120IMS/RV

Manufacturer Part Number
WM7120IMS/RV
Description
IC, MICROPHONE, MEMS, ANALOG SM
Manufacturer
Wolfson Microelectronics
Datasheet

Specifications of WM7120IMS/RV

Brief Features
Low Supply Current, Automated Flow Solder Assembly
Operating Temperature Range
-40°C To +100°C
Digital Ic Case Style
SMD
No. Of Pins
4
Svhc
No SVHC (15-Dec-2010)
Package /
RoHS Compliant
Ic Function
Analogue Silicon Microphone
Supply Voltage Range
1.5V To 3.7V
Rohs Compliant
Yes

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
WM7120IMS/RV
Manufacturer:
WOLFSON
Quantity:
84 165
Part Number:
WM7120IMS/RV
Manufacturer:
WOLFSON
Quantity:
20 000
w
DESCRIPTION
The WM7120 is a compact high Signal to Noise Ratio
(SNR) silicon analogue microphone for use in consumer
applications requiring low supply current, typically 140μA,
and excellent signal quality. It offers low THD and good
linearity to offer excellent sound quality.
Microelectronics’
technology it delivers high reliability and performance in a
miniature low profile package.
The WM7120 can withstand the high temperatures needed
for automated reflow solder assembly, which can damage
conventional microphones.
equipment can be used for assembly on to circuit boards.
The WM7120E offers tighter sensitivity tolerance which
reduces the variation between microphones and removes
the need for production in-line calibration to compensate for
microphone variation.
BLOCK DIAGRAM
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WOLFSON MICROELECTRONICS plc
unique
CMOS/MEMS
Automated pick and place
Analogue Silicon Microphone
at
http://www.wolfsonmicro.com/enews/
Using Wolfson
membrane
FEATURES
APPLICATIONS
Excellent SNR and Sensitivity tolerance options
-
-
Low supply current 140μA
Low profile packaging
Automated flow solder assembly
Analogue output
Top Port Package
1.5V to 3.7V supply
3.76mm x 2.95mm x 1.10mm Package
Mobile phone handsets
Portable media players
Digital still cameras
Digital video cameras
Bluetooth headsets
Portable navigation devices
Portable games consoles
WM7120IMS, SNR 59dB, Sensitivity +/-3dB
WM7120IMSE, SNR 59dB, Sensitivity +/-1dB
WM7120 Series
Copyright ©2009 Wolfson Microelectronics plc
Pre-Production, May 2009, Rev 3.0

Related parts for WM7120IMS/RV

WM7120IMS/RV Summary of contents

Page 1

... Mobile phone handsets • Portable media players • Digital still cameras • Digital video cameras • Bluetooth headsets • Portable navigation devices • Portable games consoles at http://www.wolfsonmicro.com/enews/ WM7120 Series Pre-Production, May 2009, Rev 3.0 Copyright ©2009 Wolfson Microelectronics plc ...

Page 2

WM7120 DESCRIPTION ....................................................................................................... 1 FEATURES............................................................................................................. 1 APPLICATIONS ..................................................................................................... 1 BLOCK DIAGRAM ................................................................................................. 1 TABLE OF CONTENTS ......................................................................................... 2 PIN CONFIGURATION ........................................................................................... 3 PIN DESCRIPTION ................................................................................................ 3 ORDERING INFORMATION .................................................................................. 3 ABSOLUTE MAXIMUM RATINGS ......................................................................... 4 RECOMMENDED OPERATING CONDITIONS ..................................................... 4 ...

Page 3

... Analogue Output 2 GND 3 GND 4 VDD ORDERING INFORMATION DEVICE DESCRIPTION Standard WM7120IMS/V Standard (tape and reel) WM7120IMS/RV Standard Enhanced WM7120IMSE/V Standard Enhanced (tape WM7120IMSE/RV and reel) Note: Reel quantity = 5,700 All devices are Pb-free and Halogen free. w TYPE DESCRIPTION Microphone analogue output signal ...

Page 4

WM7120 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics ...

Page 5

Pre-Production ACOUSTIC AND ELECTRICAL CHARACTERISTICS Test Conditions: VDD=2.1V 25°C A PARAMETER SYMBOL Directivity Sensitivity Current Consumption Total Harmonic Distortion Signal to Noise Ratio Input Referred Noise Power Supply Rejection Ratio Output DC Impedance Minimum Load Impedance Acoustic Overload ...

Page 6

WM7120 FREQUENCY RESPONSE CURVE w Pre-Production PP, Rev 3.0, May 2009 6 ...

Page 7

Pre-Production APPLICATIONS INFORMATION RECOMMENDED EXTERNAL COMPONENTS Figure 1 WM7120 Recommended External Components Note: 1. The value of C2 should be selected with reference to the input impedance of the analogue input the microphone is connected to. C2 and the input ...

Page 8

WM7120 PACKAGE DIMENSIONS MS4: PACKAGE 3.76 x 2.95 x 1.10 mm BODY 0.1 C TOP VIEW 0.05 C -C- A SIDE VIEW Dimensions (mm) Symbols MIN NOM A 1.00 1.10 3.66 3. 2.85 2.95 F ...

Page 9

Pre-Production RECOMMENDED CUSTOMER LAND PATTERNS Figure 3 Recommended Customer PCB Land Pattern w WM7120 PP, Rev 3.0, May 2009 9 ...

Page 10

... WM7120 IMPORTANT NOTICE Wolfson Microelectronics plc (“Wolfson”) products and services are sold subject to Wolfson’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement. Wolfson warrants performance of its products to the specifications in effect at the date of shipment. Wolfson reserves the right to make changes to its products and specifications or to discontinue any product or service without notice ...

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