WM8961 datasheet(7/116 Pages) WOLFSON

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WM8961

Pre-Production

PP, August 2009, Rev 3.1

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

DVDD and AVDD

-0.3V

+2.5V

MICVDD

-0.3V

+4.5V

SPKVDD1, SPKVDD2

-0.3V

+7.0V

CPVDD

-0.3V

+2.2V

Voltage range digital inputs

DGND -0.3V

DVDD +0.3V

Voltage range analogue inputs

AGND -0.3V

AVDD +0.3V

Voltage range analogue outputs (HP_L, HP_R)

-CPVDD-0.3V

+CPVDD+0.3V

Temperature Range, TA

-40

°C

+85

°C

Storage temperature after soldering

-65

°C

+150

°C

Notes

Analogue, digital and speaker grounds must always be within 0.3V of each other.

All digital and analogue supplies are completely independent from each other (i.e. not internally connected).

DVDD must be less than or equal to AVDD.

AVDD must be less than or equal to MICVDD.

AVDD must be less than or equal to SPKVDD1 and SPKVDD2.

SPKVDD1 and SPKVDD2 must be high enough to support the peak output voltage when using ACGAIN function, to avoid

output waveform clipping. See the “Speaker Output Boost Control” section.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

Digital supply range

DVDD

1.62

1.8V

2.0

Microphone bias supply range

MICVDD

1.71

2.5V

3.6

Analogue supplies range

AVDD

1.71

1.8V

2.0

Charge pump supply range (1.8V

supply operation)

CPVDD

1.71

1.8V

2.0

Speaker supply range

SPKVDD1, SPKVDD2

2.7

5.0

5.5

Ground

DGND, AGND, CPGND,

SPKGND1, SPKGND2

Operating Temperature

-40

+25

+85

°C

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