PAM8302A_13 Datasheet, PDF (1/15 Pages) Power Analog Micoelectronics – 2.5W Filterless Class-D Mono Audio Amplifier

PAM8302A
2.5W Filterless Class-D Mono Audio Amplifier
Key Features
n 2.5W Output at 10% THD with a 4Ω Load
and 5V Power Supply
n Filterless, Low Quiescent Current and Low
EMI
n High Efficiency up to 88%
n Superior Low Noise
n Short Circuit Protection
n Thermal Shutdown
n Few External Components to Save Space
and Cost
n MSOP-8, SOP-8, DFN3x3 and DFN2x2
Packages Available
n Pb-Free Package
Applications
n PMP/MP4
n GPS
n Portable Speakers
n Walkie Talkie
n Handsfree phones/Speaker Phones
n Cellular Phones
General Description
The PAM8302A is a 2.5W class-D mono audio
amplifier. Its low THD+N feature offers high-
quality sound reproduction. The new filterless
architecture allows the device to drive speaker
directly instead of using low-pass output filters,
therefore save system cost and PCB area.
With the same number of external components,
the efficiency of the PAM8302A is much better
than that of class-AB cousins. It can optimize
battery life thus is ideal for portable applications.
The PAM8302A is available in MSOP-8, SOP-8,
DFN3x3 and DFN2x2 packages.
Typical Application
Ci
IN -
D iffer en ti al
Input
Ci
IN+
ON
OFF
1µF
6
VDD
R
4
IN-
8
VO-
R
PAM8302A
3
IN+
1
/SD
5
VO+
GND
7
Power Analog Microelectronics,Inc
www.poweranalog.com
1
09/2011 Rev1.5