WM8758B Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8758B

Stereo CODEC with Headphone Driver and Line Out

Wolfson Microelectronics plc 

WM8758B

Production Data

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

DBVDD, DCVDD, AVDD1, AVDD2 supply voltages

-0.3V

+3.63V

Voltage range digital inputs

DGND -0.3V

DVDD +0.3V

Voltage range analogue inputs

AGND1 -0.3V

AVDD1 +0.3V

Storage temperature prior to soldering

30C max / 85% RH max

Storage temperature after soldering

-65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 internally independent (i.e. not connected).

3. Analogue supply voltages should not be less than digital supply voltages.

4. DBVDD must be greater than or equal to DCVDD.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

TEST

CONDITIONS

Digital supply range (Core)

Digital supply range (Buffer)

Analogue supply range

DCVDD

DBVDD

AVDD1, AVDD2

Ground

DGND, AGND1, AGND2

Notes

1. Analogue supply voltages must not be less than digital supply voltages.

2. DBVDD must be greater than or equal to DCVDD.

MIN

1.711,2

1.71

2.51

TYP

1.8

3.3

3.3

0

MAX

3.6

3.6

3.6

UNIT

V

V

V

V

w

PD, Rev 4.4, January 2012

6

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