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LM4875 数据表(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LM4875
功能描述  Stereo 1.2W Audio Sub-system with 3D Enhancement
PDF  37 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM4875 数据表(HTML) 6 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) (Note 10)
62˚C/W
θ
JA (SPA28A) (Note 12)
42˚C/W
θ
JC (SPA28A)
3˚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
LM4857
Units
(Limits)
Typical
(Note 6)
Limits (Notes
7, 8)
I
DD
Supply Current
V
IN = 0V, No load;
LD5 = RD5 = 0 (Note 9)
Mode 1, 6, 11
6
9.5
mA (max)
Mode 4, 5, 9, 10, 14, 15
5
8
mA (max)
Mode 2, 3, 7, 8, 12, 13
13
21
mA (max)
I
SD
Shutdown Current
Output mode 0 (Note 9)
0.2
3
µA (max)
LM4857SP
Speaker; THD+N = 1%;
f = 1kHz; 4
Ω BTL
1.6
W
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
75
60
mW (min)
Earpiece; THD+N = 1%;
f = 1kHz; 32
Ω BTL, CD4 = 0
100
80
mW (min)
Earpiece; THD+N = 1%;
f = 1kHz; 32
Ω BTL, CD4 = 1
135
mW
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
0.04
%
Earpiece; P
O= 15mW;
f = 1kHz; 32
Ω BTL, CD4 = 0
0.05
%
Line Out, V
O=1VRMS;
f = 1kHz; 5k
Ω SE
0.009
%
V
OS
Offset Voltage
Speaker; LD5 = RD5 = 0
5
40
mV (max)
Earpiece; LD5 = RD5 = 0
5
30
mV (max)
www.national.com
6



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