WM7220IMS/RV Wolfson Microelectronics, WM7220IMS/RV Datasheet - Page 4

• Manufacturer Part Number: WM7220IMS/RV
• Description: MICROPHONE, MEMS, DIGITAL, STD
• Manufacturer: Wolfson Microelectronics

Specifications of WM7220IMS/RV

• Brief Features: High SNR Of 58dB, Support Stereo / Array Operation And Automated Flow Solder Assembly
• Operating Temperature Range: -40°C To +100°C
• No. Of Pins: 6
• Rohs Compliant: Yes
• Ic Function: Digital Silicon Microphone
• Supply Voltage Range: 1.64V To 3.7V

WM7220
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 at the test conditions specified.
Wolfson tests its package types according to IPC/JEDEC J-STD-020 for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30°C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL2A = out of bag storage for 4 weeks at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
IMPORTANT ASSEMBLY GUIDELINES
Do not put a vacuum over the port hole of the microphone. Placing a vacuum over the port hole can damage the device.
For information on recommended pick and place vacuum point, refer to the package dimension drawing.
Do not board wash the microphone after a re-flow process. Board washing and the associated cleaning agents can
damage the device. Do not expose to ultrasonic cleaning methods.
Do not use vapour phase re-flow process. The vapour can damage the device.
RECOMMENDED OPERATING CONDITIONS
w
CONDITION
Supply Voltage
Operating temperature range, T
Storage temperature prior to soldering
Storage temperature after soldering
Analogue Supply Range
Ground
Clock Frequency
PARAMETER
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible
to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage
of this device.
A
SYMBOL
GND
VDD
F
CLK
MIN
1.64
1
TYP
0
30°C max / 60% RH max
MAX
3.25
3.7
-40ºC
-40ºC
-0.3V
MIN
UNIT
MHz
V
V
PTD, Rev 2.0, October 2010
Preliminary Technical Data
+100ºC
+100ºC
+4.2V
MAX
4