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PDF PAM8403 Data sheet ( 特性 )

部品番号 PAM8403
部品説明 Filterless 3W Class-D Stereo Audio Amplifier
メーカ Power Analog Micoelectronics
ロゴ Power Analog Micoelectronics ロゴ 

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PAM8403 Datasheet, PAM8403 PDF,ピン配置, 機能
PAM8403
Filterless 3W Class-D Stereo Audio Amplifier
Key Features
n 3W Output at 10% THD with a 4Ω Load and
www.datashee5t4Vu.Pcoomwer Supply
n Filterless, Low Quiescent Current and Low
EMI
n Low THD+N
n Superior Low Noise
n Efficiency up to 90%
n Short Circuit Protection
n Thermal Shutdown
n Few External Components to Save the
Space and Cost
n Pb-Free Package
Applications
n LCD Monitors / TV Projectors
n Notebook Computers
n Portable Speakers
n Portable DVD Players, Game Machines
n Cellular Phones/Speaker Phones
General Description
The PAM8403 is a 3W, class-D audio amplifier. It
offers low THD+N, allowing it to achieve high-
quality sound reproduction. The new filterless
architecture allows the device to drive the speaker
directly, requiring no low-pass output filters,thus
to save the system cost and PCB area.
With the same numbers of external components,
the efficiency of the PAM8403 is much better than
that of class-AB cousins. It can extend the battery
life, ideal for portable applications.
The PAM8403 is available in SOP-16 package.
Typical Application
VDD
PVDD
1μF
1μF
4 70μ F
1μF
0.47μF Ri
I NL
6
VDD
7 INL
4 13
PVDD PVDD
1
+OUT_L
8
VREF
-OUT_L 3
0.1 μF
0. 47μ F
10
INR INR
Ri
PAM8403
-OUT_R 14
SHDN
MUTE
12 SHDN
5 MUTE
+OUT_R 16
GND NC PGNDPGND
11
92
15
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs Output Power
RL=4Ω
RL=8Ω
0.5 1 1.5 2 2.5
Output Pow er(W)
3
Radiated Emissions
FCC Class B Limit
Power Analog Microelectronics,Inc
www.poweranalog.com
1
09/2008 Rev 1.3

1 Page





PAM8403 pdf, ピン配列
PAM8403
Filterless 3W Class-D Stereo Audio Amplifier
Pin Descriptions
www.datPasinheNetu4um.cbomer
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
+OUT_L
PGND
-OUT_L
PVDD
MUTE
VDD
INL
VREF
NC
INR
GND
SHDN
PVDD
-OUT_R
PGND
+OUT_R
Description
Left Channel Positive Output
Power GND
Left Channel Negative Output
Power VDD
Mute Control Inputactive low
Analog VDD
Left Channel Input
Internal analog reference, connect a bypass capacitor from VREF to GND
No connect
Right Channel Input
Analog GND
Shutdown Control Input (active low)
Power VDD
Right Channel Negative Output
Power GND
Right Channel Positive Output
Absolute Maximum Ratings
These are stress ratings only and functional operation is not implied. Exposure to absolute
maximum ratings for prolonged time periods may affect device reliability. All voltages are with
respect to ground.
Supply Voltage............................................6.6V
Input Voltage.............................-0.3V to V +DD 0.3V
Operation Temperature Range.........-40°C to 85°C
Maximum Junction Temperature..................150°C
Operation Junction Temperature.....-40°C to 125°C
Storage Temperature.....................-65°C to 150°C
Soldering Temperature.......................300°C, 5sec
Recommended Operating Conditions
Supply voltage Range........................2.5V to 5.5V
Max. Supply Voltage (for Max. duration of
30 minutes)................................................6.4V
Operation Temperature Range.........-40°C to 85°C
Junction Temperature Range.........-40°C to 125°C
Thermal Information
Parameter
Thermal Resistance (Junction to Ambient)
Symbol
θJA
Package
SOP-16
Maximum
110
Unit
°C/W
Thermal Resistance (Junction to Case)
θJC
SOP-16
23
°C/W
Power Analog Microelectronics,Inc
www.poweranalog.com
3
09/2008 Rev 1.3


3Pages


PAM8403 電子部品, 半導体
PAM8403
Filterless 3W Class-D Stereo Audio Amplifier
Typical Operating Characteristics (TA=25°C)
www.datashe1e.t4TuH.coDm+N vs Output Power
100
50
20
10 V =DD 2.5V
5
V =DD 3.3V
2
%1
0.5
0.2
0.1
0.05
0.02
0.01
20m
V =DD 5V
50m
100m
200m
500m
W
1
RL=4Ω, Gain = 24dB, f=1kHz
2
4
2. THD+N vs Output Power
100
50
20 V =DD 2.5V V =DD 3.3V
10
5
2
%1
0.5
0.2
0.1
0.05 V =DD 5V
0.02
0.01
20m
50m
100m
200m
500m
W
1
24
RL=8Ω, Gain = 24dB, f=1kHz
3. THD+N vs Frequency
100
50
20
10
5
2
%1
0.5
0.2
0.1
0.05
L
0.02
0.01
20
R
50 100 200
500
Hz
1k
2k
5k 10k 20k
V =DD 5V, RL=4Ω,Gain = 24dB, Cin=1μF
4. THD+N vs Frequency
100
50
20
10
5
2
%1
0.5
L0.2
0.1
0.05
0.02
0.01
20
R
50 100 200
500
Hz
1k
2k
5k 10k 20k
VDD=5V, RL=8Ω,Gain = 24dB, Cin=1μF
Power Analog Microelectronics,Inc
www.poweranalog.com
6
09/2008 Rev 1.3

6 Page



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