WM8955 Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8955

STEREO DAC FOR PORTABLE AUDIO APPLICATIONS

Wolfson Microelectronics plc 

WM8955L

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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.

CONDITION

Supply voltages

Voltage range digital inputs

Voltage range analogue inputs

Operating temperature range, TA

Storage temperature prior to soldering

Storage temperature after soldering

Package body temperature (soldering 10 seconds)

Package body temperature (soldering 2 minutes)

MIN

MAX

-0.3V

+3.63V

DGND -0.3V

DBVDD +0.3V

AGND -0.3V

AVDD +0.3V

-25°C

+85°C

30°C max / 85% RH max

-65°C

+150°C

+260°C

+183°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.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

Digital supply range (Core)

Digital supply range (Buffer)

Analogue supplies range

Ground

SYMBOL

DCVDD

DBVDD

AVDD, HPVDD

DGND, AGND, HPGND

TEST CONDITIONS

MIN

1.42

1.8

1.8

TYP

MAX

UNIT

2.0

3.6

V

2.0

3.6

V

2.0

3.6

V

0

V

w

Product Preview Rev 0.4 May 2003

4

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