Diodes PAM8304 - Manual

PAM8304
Document number: DS36589 Rev. 1 - 2
1 of 11
www.diodes.com
October 2013
© Diodes Incorporated
PAM8304
NEW PROD
UC
T
A Product Line of
Diodes Incorporated
3W MONO CLASS D AUDIO AMPLIFIER
Description
The PAM8304 is a mono filter-less Class-D amplifier with high SNR
and differential input that helps eliminate noise. The PAM8304
supports 2.8V to 6V operation make it idea for up to 4 cells alkaline
battery applications. The PAM8304 is capable of driving speaker
loads as low as 3Ω speaker with a 5V supply maximizing the output
power.
Features like greater than 90% efficiency and small PCB area make
the PAM8304 Class-D amplifier ideal for portable applications. The
output uses a filter-less architecture minimizing the number of
external components and PCB area whilst providing a high
performance, simple and lower cost system.
The PAM8304 features short circuit protection, thermal shutdown and
under voltage lock-out.
The PAM8304 is available in DFN3030-8L and MOP-8L packages.
Features
 Supply Voltage from 2.8V to 6.0 V
 3Ω Driving Capability
 3.0W@10% THD Output with a 4Ω Load and 5V Supply
 High Efficiency up to 90% @1W with an 8Ω Load
 Shutdown Current <1μA
 Superior Low Noise without Input
 Short Circuit Protection
 Thermal Shutdown
 Available in Space Saving DFN3030-8L and MSOP-8L
Packages
 Pb-Free Package
Pin Assignments
MSOP-8L
Top View
DFN3X3-8L
Top View
1
2
3
4 5
6
7
8
P8
3
0
4
X
XXY
W
OUT+
PVDD
VDD
IN- IN+
SD
GND
OUT-
1
2
3
4 5
6
7
8
P8
3
0
4
XX
XYW
OUT+
PVDD
VDD
IN- IN+
SD
GND
OUT-
Applications
 MP4/MP3
 GPS
 Set-Top-Box

Tablets/Digital Photo Frame
 Electronic Dictionary
 Portable Game Machines
Typical Applications Circuit
OU T-
OU T +
V D D
0.1 F μ
V I N
GN D
I N +
PA M 8 3 0 4 I N -
/ S D
0.1 F μ
1 F μ
P V D D
P GN D
V D D
/ S D