AD1881A データシートの表示（PDF） - Analog Devices

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AD1881A

AC’97 SoundMAX® Codec

Analog Devices 

AD1881A

ABSOLUTE MAXIMUM RATINGS*

Parameter

Min Max

Unit

Power Supplies

Digital (VDD)

–0.3 +3.6

V

Analog (VCC)

–0.3 +6.0

V

Analog Input Voltage (Signal Pins) –0.3 VCC + 0.3 V

Digital Input Voltage (Signal Pins) –0.3 VDD + 0.3 V

Ambient Temperature (Operating) 0

+70

°C

Storage Temperature

–65 +150

°C

*Stresses greater than those listed under Absolute Maximum Ratings may cause

permanent damage to the device. This is a stress rating only; functional operation

of the device at these or any other conditions above those indicated in t he

operational section of this specification is not implied. Exposure to absolute maximum

rating conditions for extended periods may affect device reliability.

ORDERING GUIDE

Model

Temperature

Range

AD1881AJST 0°C to 70°C

Package

Description

48-Lead LQFP

ENVIRONMENTAL CONDITIONS

Ambient Temperature Rating

TAMB = TCASE – (PD × θCA)

TCASE = Case Temperature in °C

PD = Power Dissipation in W

θCA = Thermal Resistance (Case-to-Ambient)

θJA = Thermal Resistance (Junction-to-Ambient)

θJC = Thermal Resistance (Junction-to-Case)

Package

Option

ST-48

Package

LQFP

␪JA

76.2°C/W

␪JC

17°C/W

␪CA

59.2°C/W

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection. Although

the AD1881A features proprietary ESD protection circuitry, permanent damage may occur on

devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are

recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

PIN CONFIGURATION

48-Lead LQFP

48 47 46 45 44 43 42 41 40 39 38 37

DVDD1 1

XTL_IN 2

XTL_OUT 3

DVSS1 4

SDATA_OUT 5

BIT_CLK 6

DVSS2 7

SDATA_IN 8

DVDD2 9

SYNC 10

RESET 11

PC_BEEP 12

PIN 1

IDENTIFIER

AD1881A

TOP VIEW

(Not to Scale)

13 14 15 16 17 18 19 20 21 22 23 24

36 LINE_OUT_R

35 LINE_OUT_L

34 CX3D

33 RX3D

32 FILT_L

31 FILT_R

30 AFILT2

29 AFILT1

28 VREFOUT

27 VREF

26 AVSS1

25 AVDD1

NC = NO CONNECT

REV. 0

–7–

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