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LM4671 Folha de dados(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Nome de Peças LM4671
Descrição Electrónicos  Filterless High Efficiency 2.5W Switching Audio Amplifier
PDF  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4671 Folha de dados(HTML) 4 Page - National Semiconductor (TI)

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Electrical Characteristics (Notes 1, 2)
The following specifications apply for A
V = 2V/V (RI = 150k
Ω), R
L =15µH+8
Ω + 15µH unless otherwise specified. Limits
apply for T
A = 25˚C. (Continued)
Symbol
Parameter
Conditions
LM4671
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
P
O
Output Power
R
L =15µH+8
Ω + 15µH
THD = 10% (max)
f = 1kHz, 22kHz BW
V
DD =5V
17
W
V
DD = 3.6V
870
mW
V
DD = 2.5V
425
W
R
L =15µH+8
Ω + 15µH
THD = 1% (max)
f = 1kHz, 22kHz BW
V
DD = 5V
1.19
W
V
DD = 3.6V
700
600
mW
V
DD = 2.5V
350
W
THD+N
Total Harmonic Distortion + Noise
V
DD = 5V, PO = 0.1WRMS,
f = 1kHz
0.09
%
V
DD = 3.6V, PO = 0.1WRMS,
f = 1kHz
0.04
%
V
DD = 3.6V, PO = 0.1WRMS,
f = 5kHz
0.12
%
V
DD = 3.6V, PO = 0.1WRMS,
f = 10kHz
0.05
%
V
DD = 3.6V, 5V
V
Ripple = 200mVPP Sine,
f
Ripple = 217Hz
Inputs to AC GND, C
I = 2µF
61.8
dB
PSRR
Power Supply Rejection Ratio
V
DD = 3.6V, 5V
V
Ripple = 200mVPP Sine,
f
Ripple = 1kHz
Inputs to AC GND, C
I = 2µF
59.8
dB
V
DD = 3.6V, 5V
V
Ripple = 200mVPP Sine,
f
Ripple = 10kHz
Inputs to AC GND, C
I = 2µF
48.65
dB
V
DD = 3.6V, 5V
V
Ripple = 200mVPP Sine,
f
Ripple = 217Hz
f
IN = 1kHz, PO = 10mWRMS
65.71
dB
SNR
Signal to Noise Ratio
V
DD = 5V, PO =1WRMS
93
dB
e
OUT
Output Noise
V
DD = 3.6V, f = 20Hz – 20kHz
Inputs to AC GND, C
I = 2µF
No Weighting
58
µV
RMS
V
DD = 3.6V, Inputs to AC GND
C
I = 2µF, A Weighted
38
µV
RMS
CMRR
Common Mode Rejection Ratio
V
DD = 3.6V, VRipple =1VPP Sine
f
Ripple = 217Hz
68.3
dB
T
WU
Wake-up Time
V
DD = 3.6V
17
µs
T
SD
Shutdown Time
140
µs
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