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LM4844 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM4844
Description  Stereo 1.2W Audio Sub-system with 3D Enhancement
PDF  21 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4844 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
−65˚C to +150˚C
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 (T
J)
150˚C
Thermal Resistance
θ
JA (TLA30CZA)
62˚C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ +85˚C
Supply Voltage
2.7V
≤ V
DD
≤ 5.5V
–2.5V
≤ I2CV
DD
≤ 5.5V
Audio Amplifier Electrical Characteristics V
DD = 5.0V (Notes 1, 2)
The following specifications apply for V
DD = 5.0V, unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4844
Units
(Limits)
Typical
(Note 6)
Limits (Notes
7, 8)
I
DD
Supply Current
V
IN = 0V, No load;
LD5=RD5=0
Mode 4, 9, 14
5
8
mA (max)
Mode 2, 7, 12
12
18
mA (max)
Mode 3, 8, 13
13
20
mA (max)
I
SD
Shutdown Current
Mode 0
0.2
2.5
µA (max)
P
O
Output Power
Speaker; THD+N = 1%;
f = 1kHz; 8
Ω BTL
1.2
0.9
W (min)
Headphone; THD+N = 1%;
f = 1kHz; 32
Ω SE
80
60
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
LD5=RD5=0
Speaker; P
O = 400mW;
f = 1kHz; 8
Ω BTL
0.05
%
Headphone; P
O = 15mW;
f = 1kHz; 32
Ω SE
0.06
%
V
OS
Offset Voltage
Speaker; LD5 = RD5 = 0
5
40
mV (max)
Headphone; LD5 = RD5 = 0
2
30
mV (max)
N
OUT
Output Noise
A-weighted, 0dB gain;
LD5=RD5=0
Speaker; Mode 2, 3, 7, 8
31
µV
Speaker; Mode 12, 13
35
µV
Headphone; Mode 3, 4, 8, 9
12
µV
Headphone; Mode 13, 14
14
µV
PSRR
Power Supply Rejection Ratio
f = 217Hz; V
rip = 200mVpp;CB = 2.2µF;
0dB Gain Setting; LD5 = RD5 = 0
Speaker; Mode 2, 3, 7, 8
71
dB
Speaker; Mode 12, 13,
65
55
dB (min)
Headphone; Mode 3, 4, 8, 9
76
dB
Headphone; Mode 13, 14
72
62
dB (min)
Xtalk
Crosstalk
LD5=RD5=0
Loudspeaker; P
O = 400mW;
f = 1kHz
84
dB
Headphone; P
O = 15mW;
f = 1kHz
60
dB
T
WU
Wake-up Time
CD4=0;C
B = 2.2µF
103
ms
CD4=1;C
B = 2.2µF
42
ms
www.national.com
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