PAM8302L Datasheet, PDF (1/13 Pages) Power Analog Micoelectronics – 2.5W Filterless Class-D Mono Audio Amplifier

PAM8302L
2.5W Filterless Class-D Mono Audio Amplifier
Key Features
n Support 2.0V to 5.5V Supply Voltage Range
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 and DFN3x3 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 PAM8302L is a 2.5W class-D mono audio
amplifier. Its low total harmonic distortion
(THD+N) offers high-quality sound reproduction.
The PAM8302L uses a filterless design that
avoids the use of low-pass filters. This new design
allows the amplifier to directly drive a speaker,
making it cheap and compact. The new design
allows the amplifier to be more affordable and
take less PCB area.
The PAM8302L uses less power than Class-AB
amplifiers. The use of this product can help
optimize battery life; it is ideal for portable
applications.
The PAM8302L is available in MSOP-8 and
DFN3x3-8 packages.
Typical Application
1µ F
Ci
IN-
Diffe re n ti a l
Input
Ci
IN+
ON
OFF
6
VDD
Ri
4 IN-
VO- 8
Ri
PAM8302L
3 IN+
1 SD
GND
VO+ 5
7
Power Analog Microelectronics,Inc
www.poweranalog.com
1
11/2010 Rev 1.0