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参数资料
型号： LM4897MM/NOPB
厂商： NATIONAL SEMICONDUCTOR CORP
元件分类： 音频／视频放大
英文描述： 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10
封装： MSOP-10
文件页数： 8/14页
文件大小： 612K
代理商： LM4897MM/NOPB
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
65C to +150C
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility (Note 4)
2000V
ESD Susceptibility (Note 5)
200V
Junction Temperature
150C
Thermal Resistance
θ
JC (MUB10A)
56C/W
θ
JA (MUB10A)
190C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
40C
≤ T
A
≤ 85C
Supply Voltage
2.6V
≤ V
DD
≤ 5.5V
Electrical Characteristics V
DD = 5.0V
(Notes 1, 2)
The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4897
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, 8
BTL
5
9
mA (max)
I
SD
Shutdown Current
V
shutdown = GND
0.1
2
A (max)
V
OS
Output Offset Voltage
4
30
mV (max)
P
o
Output Power
THD+N = 1% (max), f = 1kHz
1.1
0.9
W (min)
THD+N
Total Harmonic Distortion+Noise
P
o = 0.4Wrms, f = 1kHz
0.1
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mVpp sine wave,
C
B = 1.0F
Input terminated with 10
to GND
63 (f = 1kHz)
62 (f =
217Hz)
55
dB (min)
V
SDIH
Shutdown High Input Voltage
1.4
V (min)
V
SDIL
Shutdown Low Input Voltage
0.4
V (max)
V
ON
Output Noise
A-Weighted, Measured across 8
BTL
Input terminated with 10
to
ground
26
V
RMS
T
ON
Turn-On Time
C
BYPASS = 1F
25
35
ms (max)
Electrical Characteristics V
DD = 3.0V
(Notes 1, 2)
The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4897
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, 8
BTL
4
8
mA (max)
I
SD
Shutdown Current
V
shutdown = GND
0.1
2
A (max)
P
o
Output Power
THD+N = 1% (max), f = 1kHz
350
320
mW (min)
V
OS
Output Offset Voltage
4
30
mV (max)
THD+N
Total Harmonic Distortion+Noise
P
o = 0.15Wrms, f = 1kHz
0.1
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mVpp sine wave,
C
B = 1.0F
Input terminated with 10
to
ground
63 (f = 1kHz)
62 (f =
217Hz)
55
dB (min)
V
SDIH
Shutdown High Input Voltage
1.4
V (min)
V
SDIL
Shutdown Low Input Voltage
0.4
V (max)
V
ON
Output Voltage Noise
A-Weighted, Measured across 8
BTL
Input terminated with 10
to
ground
26
V
RMS
LM4897
www.national.com
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