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參數(shù)資料
| 型號： | LM4732 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo 50W Audio Power Amplifier with Mute |
| 中文描述： | 50瓦立體聲音頻功率放大器與靜音 |
| 文件頁數(shù)： | 3/22頁 |
| 文件大?。?/td> | 861K |
| 代理商： | LM4732 |
Absolute Maximum Ratings
(Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage |V
+
| + |V
-
|
Common Mode Input Voltage
80V
(V
+
or V
-
) and
|V
+
| + |V
-
|
≤
80V
Differential Input Voltage (Note 12)
Output Current
Power Dissipation (Note 3)
ESD Susceptability (Note 4)
ESD Susceptability (Note 5)
Junction Temperature (T
JMAX
) (Note 9)
60V
Internally Limited
125W
3.0kV
200V
150C
Soldering Information
TA Package (10 seconds)
Storage Temperature
Thermal Resistance
θ
JA
θ
JC
260C
-40C to +150C
30C/W
0.8C/W
Operating Ratings
(Notes 1, 2)
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage |V
+
| + |V
-
|
20C
≤
T
A
≤
+85C
20V
≤
V
TOTAL
≤
80V
Electrical Characteristics
(Notes 1, 2)
The following specifications apply for V
+
= +29V, V
-
= 29V, I
MUTE
= -1mA/Channel and R
L
= 8
unless otherwise specified.
Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4732
Units
(Limits)
Typical
(Note 6)
18
Limit
(Notes 7, 8)
20
80
|V
+
| + |V
-
|
Power Supply Voltage (Note
10)
Mute Attenuation
V
PIN7
V
-
≥
9V
V (min)
V (max)
dB
A
M
I
MUTE
= 0mA
THD+N =10% (max), f = 1kHz
|V
+
| = |V
-
| = 22V, R
L
= 4
|V
+
| = |V
-
| = 29V, R
L
= 8
THD+N =1% (max), f = 1kHz
|V
+
| = |V
-
| = 22V, R
L
= 4
|V
+
| = |V
-
| = 29V, R
L
= 8
P
O
= 1W, f = 1kHz
A
V
= 26dB
|V
+
| = |V
-
| = 22V, R
L
= 4
|V
+
| = |V
-
| = 29V, R
L
= 8
P
O
= 10W, f = 1kHz
P
O
= 10W, f = 10kHz
V
IN
= 2.0V
P-P
, t
RISE
= 2ns
V
CM
= 0V,
V
O
= 0V, I
O
= 0A
V
CM
= 0V, I
O
= 0mA
V
CM
= 0V, I
O
= 0mA
V
EE
= -29V + V
RIPPLE
= 1V
RMS
f
RIPPLE
= 120Hz sine wave, V
CC
= 29V
DC
V
CC
= 29V + V
RIPPLE
= 1V
RMS
f
RIPPLE
= 120Hz sine wave, V
EE
=
-29V
DC
R
L
= 2k
,
V
O
= 40V
IHF-A-Weighting Filter,
R
IN
= 600
(Input Referred)
110
P
O
Output Power (RMS)
50
50
45
45
W (min)
W (min)
42
42
W
W
THD+N
Total Harmonic Distortion +
Noise
0.02
0.01
70
72
19
105
%
%
dB
dB
V/μs
X
talk
Channel Separation (Note 11)
SR
I
DD
Slew Rate
Total Quiescent Power
Supply Current
Input Offset Voltage
Input Bias Current
170
mA (max)
V
OS
I
B
1
10
mV (max)
μA
0.2
PSRR
Power Supply Rejection Ratio
62
dB
89
dB
A
VOL
e
IN
Open Loop Voltage Gain
Input Noise
115
2.0
dB
μV
Note 1:
All voltages are measured with respect to the ground pins, unless otherwise specified.
Note 2:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC andAC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given; however, the typical value is a good indication of device performance.
L
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