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PAM8803S Datasheet دیتاشیت PDF دانلود

دیتاشیت - Power Analog Micoelectronics - 3W Filterless Stereo Class-D Audio Amplifier

شماره قطعه PAM8803S
شرح مفصل 3W Filterless Stereo Class-D Audio Amplifier
تولید کننده Power Analog Micoelectronics 
آرم Power Analog Micoelectronics 


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PAM8803S شرح
PAM8803S
Filterless 3W Class-D Stereo Audio Amplifier
with Digital Volume Control
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 64-step Digital Volume Control
n Superior Low Noise
n Low pop 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 PAM8803S is a 3W, class-D audio amplifier
with 64-step digital volume control. It offers low
THD+N, allowing it to produce high-quality sound
reproduction. The new filterless architecture
allows the device to drive the speaker directly,
without needing low-pass output filters, which will
save 30% system cost and 75% PCB area.
With the same numbers of external components,
the efficiency of the PAM8803S is much better
than class-AB cousins. It can extend the battery
life, ideal for portable applications.
The PAM8803S is available in a SSOP24
package.
Typical Application
VDD
PVDD
C1
1uF
C3 1uF
C2 10uF
VDD GND PVDD
4
+OUT_L
PGND
PGND
21
+OUT_R
SP_L
INL
1
-OUT_L
C6
8
0.47uF
10
C8 1uF
INL
VREF
24
-OUT_R
PAM8803S
C7
INR 17
0.47uF
154
UP S1
MUTE
6 MUTE
DN 143 S2
SHDN
19 SHDN
NC NC NC NC PVDD
PGND
RST 135
PGND
S3
SP_R
INR
C4 10uF
PVDD
C5 1uF
Note: Ceramic capacitor C2 and C4 can be replaced by two
220uF or one 470uF electrolytic capacitor.
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)
Radiated Emissions
3
FCC Class B Limit
Power Analog Microelectronics,Inc
www.poweranalog.com
1
08/2007

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دیتاشیت توصیه

شماره قطعه شرح مفصل تولید کنندگان
PAM8803 3W Filterless Stereo Class-D Audio Amplifier Power Analog Micoelectronics
Power Analog Micoelectronics
PAM8803S 3W Filterless Stereo Class-D Audio Amplifier Power Analog Micoelectronics
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