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LM49150TL bảng dữ liệu(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM49150TL
Giải thích chi tiết về linh kiện  Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers
PDF  28 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LM49150TL bảng dữ liệu(HTML) 7 Page - National Semiconductor (TI)

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Electrical Characteristics 5.0V (Notes 2, 7)
The following specifications apply for V
DD = LSVDD = 5.0V, AV = 0dB, Loudspeaker RL = 15μH+8Ω+15μH (Note 8), Earpiece RL
= 8Ω, f = 1kHz, unless otherwise specified. Limits apply for T
A = 25C. LS = Loudspeaker, HP = Headphone, EP = Earpiece.
Symbol
Parameter
Conditions
LM49150
Units
(Limits)
Typical
(Note 6)
Limits
(Note 7)
I
DD
Supply Current
V
IN = 0, No Load
LS mode 1
4.5
mA
HP mode 8
4.9
mA
EP Bypass Mode
0.9
mA
LS + HP Mode 5 and Mode 10
7.7
mA
LS Mode 1, GAMP_SD = 1
3.7
mA
HP Mode 8, GAMP_SD = 1
4.4
mA
I
SD
Shutdown Current
0.02
1
µA (max)
V
OS
Output Offset Voltage
V
IN = 0V, LS, RL = 8Ω
LS Gain = 6dB, Stereo Mode 10
9
40
mV (max)
V
IN = 0V, HP, RL = 32Ω
Ground Reference, Stereo Mode 10
1
5
mV (max)
V
IN = 0V, EP Bypass only, RL = 8Ω
1
5
mV (max)
P
O
Output Power
LS Mode 1, THD+N = 1%, f = 1kHz
LS Gain = 6dB, R
L = 4Ω
2.1
W
LS Mode 1, THD+N = 1%, f = 1kHz
LS Gain = 6dB, R
L = 8Ω
1.25
W
HP Mode 8, THD+N = 1%, f = 1kHz
HP Attenuation = 0dB, R
L = 16Ω
42
mW
HP Mode 8, THD+N = 1%, f = 1kHz
HP Attenuation = 0dB, R
L = 32Ω
42
mW
EP Bypass Only, THD+N = 1%
f = 1kHz, R
L = 8Ω
135
mW
THD+N
Total Harmonic Distortion + Noise
LS Mode 1, f = 1kHz
P
OUT = 600mW; RL = 8Ω
0.015
%
HP Mode 8, f = 1kHz
P
OUT = 20mW; RL = 32Ω
0.01
%
EP Bypass only, f = 1kHz,
P
OUT = 60mW; RL = 8Ω
0.08
%
η
Efficiency
LS Output
88
%
∈
OUT
Output Noise
A-weighted,
inputs terminated to AC GND, Output referred
EP Bypass
10
μV
LS; Mode 1
40
μV
LS; Mode 2
47
μV
LS; Mode 3
48
μV
HP; Mode 4
9
μV
HP; Mode 8
10
μV
HP; Mode 12
11
μV
7
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