WM8904ECS/R 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8904ECS/R

Ultra Low Power CODEC for Portable Audio Applications

Wolfson Microelectronics plc 

WM8904

Pre-Production

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

AVDD, DCVDD

DBVDD,

-0.3V

-0.3V

+2.5V

+4.5V

MICVDD

CPVDD

-0.3V

-0.3V

+4.5V

+2.2V

HPOUTL, HPOUTR, LINEOUTL, LINEOUTR

(CPVDD + 0.3V) * -1

CPVDD + 0.3V

Voltage range digital inputs

Voltage range analogue inputs

DGND -0.3V

AGND -0.3V

DBVDD +0.3V

AVDD +0.3V

Temperature range, TA

Storage temperature after soldering

-40C

-65C

+85C

+150C

Notes:

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

2. All digital and analogue supplies are completely independent from each other; there is no restriction on power supply

sequencing.

3. HPOUTL, HPOUTR, LINEOUTL, LINEOUTR are outputs, and should not normally become connected to DC levels.

However, if the limits above are exceeded, then damage to the WM8904 may occur.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

Digital supply range (Core)

DCVDD

0.95

1.0

1.98

V

Digital supply range (Buffer)

DBVDD

1.42

1.8

3.6

V

Analogue supplies range

AVDD

1.71

1.8

2.0

V

Charge pump supply range

CPVDD

1.71

1.8

2.0

V

Microphone bias

MICVDD

1.71

2.5

3.6

V

Ground

DGND, AGND, CPGND

0

V

Operating Temperature (ambient)

TA

-40

+25

+85

C

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PP, Rev 3.3, September 2012

10

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