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AD1987
(Rev.:Rev0)

High Definition Audio SoundMAX Codec

Analog Devices 

AD1987

ABSOLUTE MAXIMUM RATINGS

Stresses greater than those listed below 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 the operational section of this specification is

not implied. Exposure to absolute maximum rating conditions

for extended periods may affect device reliability.

Power Supplies

Min

Digital (DVDD)

Digital I/O (DVIO)

Analog (AVDD)

Input Current (except supply pins)

Analog Input Voltage (Signal Pins)

Digital Input Voltage (Signal Pins)

Ambient Temperature (Operating)

Storage Temperature

–0.30

–0.30

–0.30

–0.30

–0.30

0

–65

Max

Units

+3.65

V

+3.65

V

+3.65

V

±10.0

mA

AVDD + 0.3 V

DVIO + 0.3 V

+70

°C

+150

°C

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)

All measurements per EIA-JESD51 with 2S2P test board per

EIA-JESD51-7.

Table 4. Thermal Resistance

Package

LFCSP_VQ

θJA

θJC

97

15

θCA

Unit

32

°C/W

ESD SENSITIVITY

ESD (electrostatic discharge) sensitive device.

Charged devices and circuit boards can discharge

without detection. Although this product features

patented or proprietary circuitry, damage may occur

on devices subjected to high energy ESD. Therefore,

proper ESD precautions should be take to avoid

performance degradation or loss of functionality.

Rev. 0 | Page 8 of 18 | May 2007

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