Product Preview
WM8776
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
-0.3V
MAX
+3.63V
+7V
Digital supply voltage
Analogue supply voltage
-0.3V
Voltage range digital inputs (DI, CL, CE and MODE)
DGND -0.3V
DGND -0.3V
+7V
Voltage range digital inputs (MCLK, DIN, ADCLRC, DACLRC,
ADCBCLK and DACBCLK)
DVDD + 0.3V
Voltage range analogue inputs
Master Clock Frequency
AGND -0.3V
AVDD +0.3V
37MHz
Operating temperature range, TA
Storage temperature
-25°C
-65°C
+85°C
+150°C
Notes:
1. Analogue and digital grounds must always be within 0.3V of each other.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
2.7
TYP
MAX
3.6
UNIT
Digital supply range
Analogue supply range
DVDD
V
V
AVDD, HPVDD,
DACREFP
2.7
5.5
Ground
AGND, DGND,
DACREFN,
ADCREFGND
0
0
V
V
Difference DGND to AGND
-0.3
+0.3
Note: digital supply DVDD must never be more than 0.3V greater than AVDD.
PP Rev 1.91 June 2004
5
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
