AD1985JST Analog Devices Inc, AD1985JST Datasheet - Page 10

• Manufacturer Part Number: AD1985JST
• Description: IC CODEC STEREO 6-DAC 20B 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1985JST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 84 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

AD1985
ABSOLUTE MAXIMUM RATINGS
Table 15.
Parameter
POWER SUPPLIES
INPUT CURRENT
(EXCEPT SUPPLY PINS)
ANALOG INPUT VOLTAGE
(SIGNAL PINS)
DIGITAL INPUT VOLTAGE
(SIGNAL PINS)
AMBIENT TEMPERATURE (OPERATING)
STORAGE TEMPERATURE
Stresses above 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 the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD 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 this product 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.
Digital (DV
Analog (AV
DD
DD
)
)
Min Max
–0.3 +3.6
–0.3 +6.0
–0.3 AV
–0.3 DV
0
–65
±10.0
70
+150
DD
DD
+ 0.3 V
+ 0.3 V
°C
Unit
V
V
mA
°C
Rev. A | Page 10 of 48
ENVIRONMENTAL CONDITIONS
Ambient Temperature Rating
Table 16. Thermal Resistance
Package Type
LQFP
All measurements per EIA/JESD51 with 2S2P test board per EIA/JESD51-7.
T
PD = Power Dissipation in W
θ
θ
JA
JC
CASE
= Thermal Resistance (Junction to Ambient)
= Thermal Resistance (Junction to Case)
= Case Temperature in °C
θ
50.1°C/W
JA
θ
17.8°C/W
JC