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參數(shù)資料
| 型號(hào)： | LM4908LQ/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC8 |
| 封裝： | LLP-8 |
| 文件頁數(shù)： | 15/21頁 |
| 文件大?。?/td> | 935K |
| 代理商： | LM4908LQ/NOPB |
Absolute Maximum Ratings (Note 3)
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 4)
Internally limited
ESD Susceptibility (Note 5)
10.0kV
ESD Susceptibility (Note 6)
500V
Junction Temperature
150C
Soldering Information (Note 1)
Small Outline Package
Vapor Phase (60 seconds)
215C
Infrared (15 seconds)
220C
Thermal Resistance
θ
JC (MSOP)
56C/W
θ
JA (MSOP)
210C/W
θ
JC (SOP)
35C/W
θ
JA (SOP)
170C/W
θ
JC (LLP)
15C/W
θ
JA (LLP)
117C/W (Note 9)
θ
JA (LLP)
150C/W (Note 10)
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
40C
≤ T
A
≤ 85C
Supply Voltage
2.0V
≤ V
DD
≤ 5.5V
Note 1: See AN-450 “Surface Mounting and their Effects on Product Reli-
ability” for other methods of soldering surface mount devices.
Electrical Characteristics (Notes 2, 3)
The following specifications apply for V
DD = 5V unless otherwise specified, limits apply to TA = 25C.
Symbol
Parameter
Conditions
LM4908
Units
(Limits)
Typ
Limit
V
DD
Supply Voltage
2.0
V (min)
5.5
V (max)
I
DD
Supply Current
V
IN = 0V, IO = 0A
1.6
3.0
mA (max)
P
tot
Total Power Dissipation
V
IN = 0V, IO = 0A
8
16.5
mW (max)
V
OS
Input Offset Voltage
V
IN = 0V
5
50
mV (max)
Ibias
Input Bias Current
10
pA
V
CM
Common Mode Voltage
0V
4.3
V
G
V
Open-Loop Voltage Gain
R
L =5k
67
dB
Io
Max Output Current
THD+N < 0.1 %
70
mA
R
O
Output Resistance
0.1
V
O
Output Swing
R
L =32
, 0.1% THD+N, Min
.3
V
R
L =32
, 0.1% THD+N, Max
4.7
PSRR
Power Supply Rejection Ratio
Cb = 1.0F, Vripple = 100mV
PP,
f = 40Hz
90
dB
Crosstalk
Channel Separation
R
L =32
, f = 1kHz
82
dB
THD+N
Total Harmonic Distortion + Noise
f=1kHz
R
L =16
,
V
O =3.5VPP (at 0 dB)
0.05
%
66
dB
R
L =32
,
V
O =3.5VPP (at 0 dB)
0.05
%
66
dB
SNR
Signal-to-Noise Ratio
V
O = 3.5Vpp (at 0 dB)
100
dB
f
G
Unity Gain Frequency
Open Loop, R
L =5k
25
MHz
P
o
Output Power
THD+N = 0.1%,f=1kHz
R
L =16
120
mW
R
L =32
75
60
mW
THD+N = 10%,f=1kHz
R
L =16
157
mW
R
L =32
99
mW
C
I
Input Capacitance
3
pF
LM4908
www.national.com
3
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