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LM4934 Folha de dados(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças LM4934
Descrição Electrónicos  3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4934 Folha de dados(HTML) 5 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.
Analog Supply Voltage
6.0V
Digital 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
150˚C
Thermal Resistance
θ
JA (RLA42)
61˚C/W
See AN-1279
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ +85˚C
Supply Voltage
2.7V
≤ AV
DD
≤ 5.5V
2.7V
≤ DV
DD
≤ 4.0V
2.4V
≤ I2CV
DD
≤ 4.0V
Audio Amplifier Electrical Characteristics AV
DD = 3.0V, DVDD = 3.0V (Notes 1,
2)
The following specifications apply for the circuit shown in Figure 1 with all programmable gain set at 0dB, unless otherwise
specified. Limits apply for T
A = 25˚C.
Symbol
Parameter
Conditions
LM4934
Units
(Limits)
Typical
(Note 6)
Limits
(Notes
7, 8)
I
DD
Supply Current
V
IN = 0, No Load
All Amps On + DAC, OCL
18.5
26.5
mA (max)
Headphone Mode Only, OCL
5.6
8
mA (max)
Stereo Speaker Mode Only
12
19.5
mA (max)
Mono Speaker Mode Only
5.9
8
mA (max)
DAC Off, All Amps On, OCL
14.6
22
mA (max)
I
SD
Shutdown Current
0.6
2
µA (max)
P
O
Output Power
Speaker; THD = 1%;
f = 1kHz, 8
Ω BTL
420
370
mW (min)
Headphone; THD = 1%;
f = 1kHz, 32
Ω SE
27
24
mW (min)
Earpiece; THD = 1%;
f = 1kHz, 32
Ω BTL
45
40
mW (min)
V
FS DAC
Full Scale DAC Output
2.4
Vpp
THD+N
Total Harmonic Distortion
Speaker; P
O = 200mW;
f = 1kHz, 8
Ω BTL
0.04
%
Headphone; P
O = 10mW;
f = 1kHz, 32
Ω SE
0.01
%
Earpiece; P
O = 20mW;
f = 1kHz, 32
Ω BTL
0.04
%
Line Out; V
O = 1Vrms; f = 1kHz, 10k
Ω SE
0.004
%
V
OS
Offset Voltage
Speaker
8
55
mV (max)
Earpiece
8
50
mV (max)
HP (OCL)
8
40
mV
O
Output Noise
A = weighted; 0dB gain;
See Table 1
Table 1
PSRR
Power Supply Rejection Ratio
f = 217Hz; V
ripple = 200mVP-P
C
B = 2.2µF; See Table 2
Table 2
www.national.com
5


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