AD1981B
ABSOLUTE MAXIMUM RATINGS
*
(T
A
= 25°C, unless otherwise noted.)
ENVIRONMENTAL CONDITIONS
*
Power Supplies
Digital (DV
DD
) . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +3.6 V
Analog (AV
DD
) . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6.0 V
Input Current (Except Supply Pins) . . . . . . . . . . . . . .
±
10 mA
Signals Pins
Digital Input Voltage . . . . . . . . . . . . . –0.3 V to DV
DD
+ 0.3 V
Analog Input Voltage . . . . . . . . . . . . –0.3 V to AV
DD
+ 0.3 V
Ambient Temperature Range (Operating) . . . . . . . 0°C to 70°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 the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Ambient Temperature Rating (LQFP Package)
TCASE = Case Temperature in
°C
PD = Power Dissipation in W
JA
Thermal Resistance (Junction to Ambient)
JC
Thermal Resistance (Junction to Case)
Package
LQFP
JA
JC
50.1°C/W
17.8°C/W
*All
measurements per EIA-JESD51 with 2S2P test board per EIA-JESD51-7
ORDERING GUIDE
Model
AD1981BJST
AD1981BJST-REEL
AD1981BJSTZ
2
AD1981BJSTZ-REEL
2
1
2
Temperature Range
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
Package Description
48-Lead LQFP (Tray)
48-Lead LQFP (Reel)
48-Lead LQFP (Tray)
48-Lead LQFP (Reel)
Package Option
1
ST-48
ST-48
ST-48
ST-48
ST = Low Profile Quad Flatpack.
The AD1981BJSTZ is a lead-free environmentally friendly product. It is manufactured using the most up-to-date materials and processes. The coating on the leads of
each device is 100% pure tin electroplate. The device is suitable for lead-free applications and is able to withstand surface-mount soldering at up to 255
°C
(± 5°C). In
addition, it is backward compatible with conventional tin-lead soldering processes. This means that the electroplated tin coating can be soldered with tin-lead solder
pastes at reflow temperatures of 220°C to 235°C.
PIN CONFIGURATION
48-Lead LQFP
MONO_OUT
37
36
LINE_OUT_R
35
LINE_OUT_L
34
AV
DD
4
33
AV
SS
4
32
AFILT4
31
AFILT3
30
AFILT2
29
AFILT1
28
V
REFOUT
27
V
REF
26
AV
SS
1
25
AV
DD
1
HP_OUT_R
HP_OUT_L
39
AV
DD
3
AV
SS
3
SPDIF
EAPD
ID1
ID0
48
47
46
45
44
43
42
41
40
AV
SS
2
NC
DV
DD
1
1
XTL_IN
2
XTL_OUT
3
DV
SS
1
4
SDATA_OUT
5
BIT_CLK
6
DV
SS
2
7
SDATA_IN
8
DV
DD
2
9
SYNC
10
RESET
11
NC
12
AD1981B
TOP VIEW
(Not to Scale)
PHONE_IN
13
AUX_L
14
AUX_R
15
JS1
16
JS0
17
CD_L
18
CD_GND_REF
19
CD_R
20
MIC1
21
MIC2
22
LINE_IN_L
23
38
AV
DD
2
NC = NO CONNECT
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 AD1981B 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.
REV. B
–7–
LINE_IN_R
24
AD [ ANALOG DEVICES ]
