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參數(shù)資料
| 型號： | LM4663MT/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | TSSOP-24 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大小： | 1007K |
| 代理商： | LM4663MT/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
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 3)
Internally Limited
Load Resistance
2.5
, min
ESD Susceptibility (Note 4)
2000V
Pins 5, 7, 18, 20
600V
ESD Susceptibility (Note 5)
200V
Pins 5, 7, 18, 20
50V
Junction Temperature (Note 6)
150C
Storage Temperature
65C
≤ T
A
≤ 150C
Soldering Information
TSSOP Package
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
Operating Ratings (Notes 1, 2)
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
40C
≤ T
A
≤ +85C
Supply Voltage
4.5V
≤ V
DD
≤ 5.5V
Thermal Resistance (TSSOP Package)
θ
JA
80C/W
θ
JC
20C/W
Electrical Characteristics (Notes 1, 2, 7)
The following specifications apply for V
DD = 5V, RL =4
, LC filter values as shown in Figure 1, unless otherwise specified.
Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4663
Units
Typical
Max
Min
V
S
Operating Supply Voltage Range
5
5.5
4.5
V
I
S
Quiescent Power Supply Current,
Class D Mode
V
IN =0VRMS,VHPSEL =0V
22
35
mA
I
S
Quiescent Power Supply Current,
Headphone Mode
V
IN =0VRMS,VHPSEL =VS
510
mA
I
SD
Quiescent Power Supply Current,
Shutdown Mode
V
SD =5V
2
A
R
IN
Input Resistance in Both Modes
20
k
V
IH
Minimum High Level Input
Voltage
Shutdown Pin & Input Select Pin
4.5
V
IL
Maximum Low Level Input
Voltage
Shutdown Pin & Input Select Pin
0.5
V
IH
Minimum High Level Input
Voltage
Headphone Select Pin
4.5
V
IL
Maximum Low Level Input
Voltage
Headphone Select Pin
0.5
V
Power Amplifiers
P
OR
Output Power, Per Channel
THD+N
≤ 1%, f
IN = 1kHz
2.1
W
P
D1
Power Dissipation
P
O = 2W/Chan, fIN = 1kHz
0.82
W
P
D2
Power Dissipation
P
O = 1W/Chan, fIN = 1kHz
0.49
W
P
D3
Power Dissipation
P
O = .25W/Chan, fIN = 1kHz
0.23
W
E
FF1
Efficiency
P
O = 2W/Chan, fIN = 1kHz
83
%
E
FF2
Efficiency
P
O = 1W/Chan, RL =8
,
f
IN = 1kHz
85
80
%
E
FF3
Efficiency
P
O = .25W/Chan, fIN = 1kHz
69
%
THD+N
Harmonic Distortion + Noise
P
O = 1W/Chan, fIN = 1kHz
0.2
%
V
NOISE
Output Noise Voltage, RMS.
AWeighted
R
SOURCE =50
,C
IN = 1F,
BW = 8Hz to 22kHz
200
V
PSRR
Power Supply Rejection Ratio
(Referred to Input)
200mV, 1kHz, V
IN =0
44
dB
A
V
Voltage Gain
1kHz, V
IN = 100mV, RL =4
13
dB
LM4663
www.national.com
2
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