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WM8731 Datasheet(PDF) 6 Page - Wolfson Microelectronics plc

Part No. WM8731
Description  Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates
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Maker  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
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WM8731 Datasheet(HTML) 6 Page - Wolfson Microelectronics plc

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WM8731 / WM8731L
Production Data
w
PD Rev 4.3 August 2006
6
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.
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.
Wolfson tests its package types according to IPC/JEDEC J-STD-020B 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.
MSL3 = out of bag storage for 168 hours at <30
°C / 60% Relative Humidity. Supplied in moisture barrier bag.
CONDITION
MIN
MAX
Digital supply voltage
-0.3V
+3.63V
Analogue supply voltage
-0.3V
+3.63V
Voltage range digital inputs
DGND -0.3V
DVDD +0.3V
Voltage range analogue inputs
AGND -0.3V
AVDD +0.3V
Operating temperature range, TA
-25
°C
+85
°C
Storage temperature after soldering
-65
°C
+150
°C
Notes:
1.
Analogue and digital grounds must always be within 0.3V of each other.
2.
The digital supply core voltage (DCVDD) must always be less than or equal to the analogue supply voltage (AVDD)
RECOMMENDED OPERATING CONDITIONS – WM8731
PARAMETER
SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Digital supply range (Core)
DCVDD
1.42
3.6
V
Digital supply range (Buffer)
DBVDD
2.7
3.6
V
Analogue supply range
AVDD, HPVDD
2.7
3.6
V
Ground
DGND,AGND,HPGND
0
V
RECOMMENDED OPERATING CONDITIONS – WM8731L
PARAMETER
SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Digital supply range (Core)
DCVDD
1.42
3.6
V
Digital supply range (Buffer)
DBVDD
1.8
3.6
V
Analogue supply range
AVDD, HPVDD
1.8
3.6
V
Ground
DGND,AGND,HPGND
0
V


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