WM8738
ABSOLUTE MAXIMUM RATINGS
Production Data
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
Digital supply voltage
Analogue supply voltage
Voltage range digital inputs
Voltage range analogue inputs
Master Clock Frequency
Operating temperature range, T
A
Storage temperature prior to soldering
Storage temperature after soldering
Notes
1.
2.
Analogue and digital grounds must always be within 0.3V of each other.
The digital supply voltage must always be less than or equal to the analogue supply voltage.
-25°C
MIN
-0.3V
-0.3V
DGND -0.3V
AGND -0.3V
MAX
+4.2V
+7.0V
+7.0V
AVDD +0.3V
37MHz
+85°C
30°C max / 85% RH max
-65°C
+150°C
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Digital supply range
Analogue supply range
Ground
Analogue supply current
Analogue supply current
Supply Current Low Power
Mode
Supply Current Low Power
Mode
Digital supply current
SYMBOL
DVDD
AVDD
DGND,AGND
AVDD = 5.0V,
(DVDD at 3.3V)
AVDD = 3.3V,
(DVDD at 3.3V)
AVDD = 5.0V
(DVDD at 3.3V)
AVDD = 3.3V
(DVDD at 3.3V)
DVDD = 3.3V
AVDD = 5.0V or 3.3V
TEST
CONDITIONS
MIN
3.0
3.0
0
30
19
TYP
MAX
3.6
5.5
UNIT
V
V
V
mA
mA
µA
µA
mA
180
110
4
w
PD Rev 4.3 November 2004
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
