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LM4856 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM4856
Descripción Electrónicos  Integrated Audio Amplifier System
Download  23 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4856 Datasheet(HTML) 5 Page - National Semiconductor (TI)

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Electrical Characteristics (Notes 2, 8)
The following specifications apply for V
DD= 3.0V, TA= 25˚C unless otherwise specified.
Symbol
Parameter
Conditions
LM4856
Units
(Limits)
Typical
(Note 5)
Limits
(Notes 6,
11)
I
DD
Supply Current
Output modes 1, 2, 3, 4, 5, 6, 7
V
IN = 0V; No loads
6.5
10
mA (max)
Output modes 1, 2, 3, 4, 5, 6, 7
V
IN = 0V; Loaded (Figure 1)
7
11
mA (max)
I
SD
Shutdown Current
Output mode 0
0.1
2.0
µA (max)
V
OS
Output Offset Voltage
V
IN = 0V
5.0
40
mV (max)
P
O
Output Power
SPKR
OUT;RL =4
THD+N = 1%; f = 1kHz, LM4856LQ
430
mW
SPKR
OUT;RL =8
THD+N = 1%; f = 1kHz
340
300
mW (min)
R
OUT and LOUT;RL =32
THD+N = 0.5%; f = 1kHz
22
18
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
SPKR
OUT
f = 20Hz to 20kHz
P
OUT = 150mW; RL =8
0.5
%
R
OUT and LOUT
f = 20Hz to 20kHz
P
OUT = 10mW; RL =32
0.5
%
N
OUT
Output Noise
A-weighted (Note 10)
29
µV
PSRR
Power Supply Rejection Ratio
SPKR
OUT
V
RIPPLE = 200mVPP; f = 217Hz,
C
B = 1.0µF
All audio inputs terminated into 50
Ω;
Output referred Gain (BTL) = 12dB
Output Mode 1, 3, 5, 7
58
55
dB (min)
Power Supply Rejection Ratio
R
OUTand LOUT
V
RIPPLE = 200mVPP; f = 217Hz,
C
B = 1.0µF
All audio inputs terminated into 50
Ω;
Output referred Maximum gain setting
Output Mode 2, 3
68
60
dB (min)
Output Mode 4, 5
60
55
dB (min)
Output Mode 6, 7
56
52
dB (min)
V
IH
Logic High Input Voltage
0.7 x V
DD
V
DD
V (min)
V (max)
V
IL
Logic Low Input Voltage
0.4
GND
V (max)
V (min)
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