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LM4681 Folha de dados(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças LM4681
Descrição Electrónicos  10 Watt Stereo CLASS D Audio Power Amplifier with Stereo Headphone Amplifier and I2C/SPI Volume Control
Download  19 Pages
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4681 Folha de dados(HTML) 4 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
16V
Input Voltage
−0.3V to V
DD
+0.3V
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility(Note 4)
2000V
ESD Susceptibility (Note 5)
200V
Junction Temperature (Note 6)
150˚C
Storage Temperature
−65˚C
≤ T
A
≤ 150˚C
Soldering Information
LLP Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
Operating Ratings (Notes 1, 2)
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ +85˚C
Supply Voltage
9V
≤ V
DD
≤ 15.5V
Thermal Resistance (LLP Package)
θ
JA
28˚C/W
θ
JC
20˚C/W
Electrical Characteristics (Notes 1, 2, 7)
The following specifications apply for V
DD = 12V, I
2CV
DD = 5V, RL =8
Ω, LC filter values as shown in Figure 1, unless other-
wise specified. Limits apply for T
A = 25˚C.
Symbol
Parameter
Conditions
LM4681
Units
Typical
Limit
V
DD
Operating Supply Voltage Range
12
15.5
9
V (max)
V (min)
I
S
Quiescent Power Supply Current,
Class D Mode
V
IN =0VRMS,VHPSEL =0V
50
70
mA
(max)
I
S
Quiescent Power Supply Current,
Headphone Mode
V
IN =0VRMS,VHPSEL =VDD
22
30
mA
(max)
I
SD
Quiescent Power Supply Current,
Shutdown Mode
V
SD = 5V
0.1
mA
R
IN
Input Resistance in Both Modes
8
k
I
2CV
DD
I
2C / SPI Logic Supply Voltage
5.5
3
V (max)
V (min)
V
IH
Minimum High Level Input
Voltage
I
2C/SPI Interface pins
0.7 x
I
2CV
DD
V (min)
V
IL
Maximum Low Level Input
Voltage
0.3 x
I
2CV
DD
V (max)
V
HPIH
HP Sense High Input Voltage
V
DD – 1
V (min)
V
HPIL
HP Sense Low Input Voltage
V
DD/2
V (max)
Power Amplifiers
P
O
Maximum Output Power, Per
Channel
THD+N
≤ 1%, f
IN = 1kHz
6.0
5.3
W (min)
THD+N
≤ 10%, V
DD = 14V,
f
IN = 1kHz
10
W
P
D1
Power Dissipation
P
O = 6W/Chan, fIN = 1kHz
1.17
W
E
FF1
Efficiency
P
O = 6W/Chan, fIN = 1kHz
85
%
THD+N
Harmonic Distortion + Noise
P
O = 1W/Chan, fIN = 1kHz
0.11
%
V
NOISE
Output Noise Voltage
R
SOURCE =50
Ω,C
IN = 1µF,
BW = 8Hz to 22kHz,
A-weighted, input referred
10
µV
www.national.com
4


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