WM8235

Product Brief

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Product Brief, Rev 3.0, February 2012

7

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.

The Moisture Sensitivity Level for each package type is specified in Ordering Information.

CONDITION

MIN

MAX

Analogue supply voltage: AVDD1-2, LDO1VDD-LDO2VDD,

DBVDD

GND - 0.3V

GND + 5V

Analogue grounds: AGND1-3, LDO1GND-LDO2GND, DBGND

GND - 0.3V

GND + 0.3V

Analogue inputs (IN1-6)

GND - 0.3V

AVDD + 0.3V

Other Analogue pins

GND - 0.3V

AVDD + 0.3V

Digital I/O pins

GND - 0.3V

AVDD + 0.3V

-40C

+85C

Storage temperature prior to soldering

30C max / 85% RH max

Storage temperature after soldering

-65C

+150C

Notes:

1.

GND denotes the voltage of any ground pin.

2.

AGND, LDOGND and DBGND pins are intended to be operated at the same potential. Differential voltages

between these pins will degrade performance.

RECOMMENDED OPERATING CONDITIONS

CONDITION

SYMBOL

MIN

TYP

MAX

UNITS

Operating temperature range

-40

85

C

Analogue Supply voltage

AVDD1-2

LDO1VDD-

LDO2VDD

DBVDD

2.97

3.3

3.63

V