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PAM

PAM8402 Datasheet Preview

PAM8402 Datasheet

2 Watt Class-D Audio Amplifiers

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Advanced Product Information
PAM8402
2 Watt Class-D Audio
Amplifiers with Enable
Description
The PAM8402 is 2 Watt per channel, 14-
pin, stereo class D audio amplifier,
whitch offers low THD+N (0.10%),
allowing it to produce high-quality sound
reproduction.
The PAM8402 runs off of a 5 Volt supply
at much higher efficiencies than their
class AB cousins, making it ideal for
many portable applications.
The PAM8402 only requires very few
external components (as few as three tiny
capacitors), results in significant cost and
board space savings.
The PAM8202 is available in a SOP14
package.
Features
2 Watts @ 10% THD per channel
output into a 8load at 5V
Support speakers or earphone
(6tο 32Ω).
Superior low noise without input.
Supply voltage: From 2.5V to 6 V.
85% efficiency above.
With Enable Function.
Short Circuit Protection.
Small package outlines: SOP14
Less output capacitor and
inductor to save the space and
cost.
Low THD+N
Low Quiescent current
Applications
Notebook computers.
PDAs.
Portable DVD players, game machines.
Cellular phones/speaker phones.
MP3 or PMP players.
Portable speakers, USB speaker.
LCD monitor / TVs.
PAM8402 Block Diagram
Vdd
C1
Input Signal
Left
1uF
Enable
1 Bit
Controller
Over Current
Left
Speaker
C2
Input Signal
Right
1uF
Vdd
C3
1uF
1 Bit
Controller
Over Current
Right
Speaker
PAM8402 Pin Assignment
GND 1
IN_R 2
VDD 3
ENABLE 4
VDD 5
GND 7
14 -OUT_R
13 N/C
12 GND
11 + OUT_ R
10 +OUT_L
9 GND
8 -OUT_L
Power Analog Microelectronics, Inc.
CONFIDENTIAL. DO NOT DISTRIBUTE OR REPRODUCE WITHOUT PERMISSION FROM P.A.M.
PAM8402 Rev. 0.1
August 2005
1




PAM

PAM8402 Datasheet Preview

PAM8402 Datasheet

2 Watt Class-D Audio Amplifiers

No Preview Available !

www.DataSheet4U.com
THD+N vs. Frequency
(8, 500mW)
Advanced Product Information
THD+N vs. Output Power
(8 Ohms, 1 kHz, Vdd=2.5V to 6V)
Efficiency vs. Output power
(8 Ohms, 1kHz, Vdd = 5V)
Efficiency
90.000%
80.000%
70.000%
60.000%
50.000%
40.000%
30.000%
20.000%
10.000%
0.000%
0.000
0.500 1.000 1.500
Output Power
2.000
With an 8-ohm load:
Vdd:
2.5V
Output Watt: 0.35W
4.0V
0.92W
5.0V
1.6W
6.0V
2.2W
Power Analog Microelectronics, Inc.
CONFIDENTIAL. DO NOT DISTRIBUTE OR REPRODUCE WITHOUT PERMISSION FROM P.A.M.
PAM8402 Rev. 0.1
August 2005
2


Part Number PAM8402
Description 2 Watt Class-D Audio Amplifiers
Maker PAM
PDF Download

PAM8402 Datasheet PDF






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