參數(shù)資料
型號： LM4808
廠商： National Semiconductor Corporation
英文描述： Dual 105 mW Headphone Amplifier
中文描述： 雙105毫瓦耳機放大器
文件頁數(shù)： 2/13頁
文件大?。?/td> 674K
代理商： LM4808
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
Storage Temperature
Input Voltage
Power Dissipation (Note 4)
ESD Susceptibility (Note 5)
ESD Susceptibility (Note 6)
Junction Temperature
Soldering Information (Note 1)
Small Outline Package
Vapor Phase (60 seconds)
6.0V
65C to +150C
0.3V to V
DD
+ 0.3V
Internally limited
3500V
250V
150C
215C
Infrared (15 seconds)
Thermal Resistance
θ
JC
(MSOP)
θ
JA
(MSOP)
θ
JC
(SOP)
θ
JA
(SOP)
220C
56C/W
210C/W
35C/W
170C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
Note 1:
See AN-450 “Surface Mounting and their Effects on Product Reli-
ability” for other methods of soldering surface mount devices.
40C
≤
T
A
≤
85C
2.0V
≤
V
DD
≤
5.5V
Electrical Characteristics
(Notes 2, 3)
The following specifications apply for V
DD
= 5V unless otherwise specified, limits apply to T
A
= 25C.
Symbol
Parameter
Conditions
LM4808
Units (Limits)
Typ
(Note 7)
Limit
(Note 8)
2.0
5.5
3.0
16.5
50
V
DD
Supply Voltage
V (min)
V (max)
mA (max)
mW (max)
mV (max)
pA
V
V
dB
mA
I
DD
P
tot
V
OS
Ibias
Supply Current
Total Power Dissipation
Input Offset Voltage
Input Bias Current
V
IN
= 0V, I
O
= 0A
V
IN
= 0V, I
O
= 0A
V
IN
= 0V
1.2
6
10
10
0
4.3
67
70
0.1
.3
4.7
89
V
CM
Common Mode Voltage
G
V
Io
R
O
V
O
Open-Loop Voltage Gain
Max Output Current
Output Resistance
Output Swing
R
L
= 5k
THD+N
<
0.1 %
R
L
= 32
, 0.1% THD+N, Min
R
L
= 32
, 0.1% THD+N, Max
Cb = 1.0μF, Vripple = 100mV
PP
,
f = 100Hz
R
L
= 32
f = 1 kHz
R
L
= 16
,
V
O
=3.5V
PP
(at 0 dB)
R
L
= 32
,
V
O
=3.5V
PP
(at 0 dB)
V
PSRR
Power Supply Rejection Ratio
dB
Crosstalk
THD+N
Channel Separation
Total Harmonic Distortion +
Noise
75
dB
0.05
66
0.05
66
105
5.5
%
dB
%
dB
dB
MHz
SNR
f
G
P
o
Signal-to-Noise Ratio
Unity Gain Frequency
Output Power
V
O
= 3.5V
pp
(at 0 dB)
Open Loop, R
L
= 5k
THD+N = 0.1%, f = 1 kHz
R
L
= 16
R
L
= 32
THD+N = 10%, f = 1 kHz
R
L
= 16
R
L
= 32
105
70
mW
mW
60
150
90
3
mW
mW
pF
pF
V/μs
C
I
C
L
SR
Input Capacitance
Load Capacitance
Slew Rate
200
Unity Gain Inverting
3
L
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