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LM4883SQ Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM4883SQ
Description  Dual 2.1W Audio Amplifier Plus Stereo Headphone
PDF  23 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4883SQ Datasheet(HTML) 5 Page - National Semiconductor (TI)

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Electrical Characteristics (3V) (Notes 3, 7, 13)
The following specifications apply for V
DD = 3V unless otherwise noted. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
Limit
(Note 8)
(Note 9)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A (Note 10) , HP-IN = 0V
4.5
mA
V
IN = 0V, IO = 0A (Note 10) , HP-IN = 4V
2.5
mA
I
SD
Shutdown Current
V
DD applied to the SHUTDOWN pin
0.01
µA
V
IH
Headphone High Input Voltage
2.2
V
V
IL
Headphone Low Input Voltage
1.5
V
V
IHSD
Shutdown High Input Voltage
0.7V
DD
V (min)
V
ILSD
Shutdown Low Input Voltage
0.3V
DD
V (max)
T
WU
Turn On Time
1µF Bypass Cap (C5)
140
ms
Electrical Characteristics for Bridged-Mode Operation (3V) (Notes 3, 7, 13)
The following specifications apply for V
DD = 3V unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
Limit
(Note 8)
(Note 9)
V
OS
Output Offset Voltage
V
IN =0V
5
mV
P
O
Output Power (Note 11)
THD+N = 1%, f = 1kHz (Note 12)
LM4883SQ, R
L =3
Ω
.82
W
LM4883SQ, R
L =4
Ω
.70
W
LM4883SQ, R
L =8
Ω
.43
W
THD+N = 10%, f = 1kHz (Note 12)
LM4883SQ, R
L =3
Ω
1.0
W
LM4883SQ, R
L =4
Ω
.85
W
LM4883SQ, R
L =8
Ω
.53
W
THD+N
Total Harmonic Distortion+Noise
1kHz
LM4883SQ, R
L =4
Ω,P
O = 280mW
0.1
%
LM4883SQ, R
L =8
Ω,P
O = 200mW
0.05
%
PSRR
Power Supply Rejection Ratio
Input Floating, 217Hz
V
ripple = 200mVp-p
C
B = 1µF, RL =8
Ω
90
dB
Input Floating, 1kHz
V
ripple = 200mVp-p
C
B = 1µF, RL =8
Ω
80
dB
Input grounded, 217Hz
V
ripple = 200mVp-p
C
B = 1µF, RL =8
Ω
65
dB
Input grounded, 1kHz
V
ripple = 200mVp-p
C
B = 1µF, RL =8
Ω
73
dB
X
TALK
Channel Separation
f = 1kHz, C
B = 1.0µF
85
dB
V
NO
Output Noise Voltage
1kHz, A-weighted
21
µV
www.national.com
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