wm8946 Wolfson Microelectronics plc, wm8946 Datasheet - Page 5

• Manufacturer Part Number: wm8946
• Description: Stereo Low-power Codec With Video Buffer
• Manufacturer: Wolfson Microelectronics plc

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Product Brief
PARAMETER
Digital supply range (Core)
Digital supply range (I/O)
Analogue supply
Speaker supply range
Ground
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-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.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
Supply voltages (DCVDD)
Supply voltages (LDOVDD, DBVDD, SPKVDD)
Voltage range digital inputs
Voltage range analogue inputs
Operating temperature range, T
Junction temperature, T
Storage temperature after soldering
RECOMMENDED OPERATING CONDITIONS
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.
JMAX
CONDITION
A
LDOVDD
SPKVDD
SYMBOL
DCVDD
DBVDD
GND
1.71
1.71
1.71
MIN
2.4
-40ºC
-40ºC
-65ºC
-0.3V
-0.3V
-0.3V
-0.3V
MIN
TYP
1.8
3.3
3.3
3.3
0
Product Brief, October 2009, Rev 1.1
MAX
1.98
3.6
3.6
3.6
LDOVDD +0.7V
DBVDD +0.7V
+150ºC
+150ºC
+85ºC
2.5V
4.5V
MAX
WM8946
UNIT
V
V
V
V
V
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