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參數(shù)資料
| 型號： | LM4894LD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 Watt Fully Differential Audio Power Amplifier With Shutdown Select |
| 中文描述： | 1.4 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| 封裝： | LLP-10 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 770K |
| 代理商： | LM4894LD |
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
Thermal Resistance
θ
JC
(LLP)
θ
JA
(LLP)
6.0V
65C to +150C
0.3V to V
DD
+0.3V
Internally Limited
2000V
200V
150C
12C/W
63C/W
θ
JA
(micro SMD)
θ
JC
(MSOP)
θ
JA
(MSOP)
Soldering Information
See AN-1112 "microSMD Wafers Level Chip Scale
Package."
See AN-1187 "Leadless
Leadframe Package (LLP)."
220C/W
56C/W
190C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
40C
≤
T
A
≤
85C
2.2V
≤
V
DD
≤
5.5V
Electrical Characteristics V
DD
= 5V
(Notes 1, 2, 8)
The following specifications apply for V
DD
= 5V, A
V
= 1, and 8
load unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4894
Units
(Limits)
Typical
(Note 6)
4
0.1
Limit
(Note 7)
8
1
I
DD
I
SD
P
o
Quiescent Power Supply Current
Shutdown Current
Output Power
V
IN
= 0V, I
o
= 0A
V
shutdown
= GND
THD = 1% (max); f = 1 kHz
LM4894LD, R
L
= 4
(Note 11)
LM4894, R
L
= 8
P
o
= 0.4 Wrms; f = 1kHz
V
ripple
= 200mV sine p-p
f = 217Hz (Note 9)
f = 1kHz (Note 9)
f = 217Hz (Note 10)
f = 1kHz (Note 10)
f = 217Hz
mA (max)
μA (max)
1.4
1
0.1
W (min)
0.850
THD+N
PSRR
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
%
87
83
83
80
50
dB (min)
63
CMRR
Common_Mode Rejection Ratio
dB
Electrical Characteristics V
DD
= 3V
The following specifications apply for V
DD
= 3V, A
V
= 1, and 8
load unless otherwise specified. Limits apply for T
A
= 25C.
(Notes 1, 2, 8)
Symbol
Parameter
Conditions
LM4894
Units
(Limits)
Typical
(Note 6)
3.5
0.1
0.35
0.325
Limit
(Note 7)
6
1
I
DD
I
SD
P
o
THD+N
PSRR
Quiescent Power Supply Current
Shutdown Current
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
V
IN
= 0V, I
o
= 0A
V
shutdown
= GND
THD = 1% (max); f = 1kHz
P
o
= 0.25Wrms; f = 1kHz
V
ripple
= 200mV sine p-p
f = 217Hz (Note 9)
f = 1kHz (Note 9)
f = 217Hz (Note 10)
f = 1kHz (Note 10)
f = 217Hz
mA (max)
μA (max)
W
%
87
83
80
78
49
dB
CMRR
Common-Mode Rejection Ratio
dB
L
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