WM8770SIFT datasheet(6/52 Pages) WOLFSON

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WM8770

Production Data

PD Rev 4.1 June 2005

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

Digital supply voltage

-0.3V

+3.63V

Analogue supply voltage

-0.3V

+7V

Voltage range digital inputs (DI, CL, CE & RESETB)

DGND -0.3V

+7V

Voltage range digital inputs (MCLK, DIN[3:0], ADCLRC, DACLRC &

BCLK)

DGND -0.3V

DVDD + 0.3V

Voltage range analogue inputs

AGND -0.3V

AVDD +0.3V

Master Clock Frequency

37MHz

Operating temperature range, TA

-25

°C

+85

°C

Storage temperature

-65

°C

+150

°C

Note:

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

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Digital supply range

DVDD

2.7

3.6

Analogue supply range

AVDD

2.7

5.5

Ground

AGND, DGND

Difference DGND to AGND

-0.3

+0.3

Note: digital supply DVDD must never be more than 0.3V greater than AVDD.

WM8770SIFT Datenblatt(PDF) 6 Page - Wolfson Microelectronics plc

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