PAM8004
Filterless 3W Class-D Stereo Audio Amplifier
Key Features
n
3W Output at 10% THD with a 3Ω Load and
5V Power Supply
n
Output at 10% THD with a 4Ω Load
2.5W
and 5V Power Supply
n
Filterless, Low Quiescent Current and Low
EMI
n
Low THD+N
n
Superior Low Noise
n
Circuit Protection
Short
n
Shutdown
Thermal
n
Few External Components to Save the
Space and Cost
n
Package
Pb-Free
General Description
The PAM8004 is a 3W, class-D audio amplifier. It
offers low THD+N, allowing it to achieve high-
quality sound reproduction. The new filterless
architecture allows the device to drive the speaker
directly, requiring no low-pass output filters, thus
to save the system cost and PCB area.
With the same numbers of external components,
the efficiency of the PAM8004 is much better than
that of class-AB cousins. It can extend the battery
life, ideal for portable applications.
The PAM8004 is available in SOP-16L package.
Applications
n
Portable Speakers
n
LCD Monitors / TV
n
Notebook Computers
n
Portable DVD Players, Game Machines
Typical Application
VDD
PVDD
1µF
1µF
10µF
1µF
VDD
0.47µF
INL
Ri
PVDDL PVDDR
+OUTL
-OUTL
INL
VREF
1µF
0.47µF
INR
Ri
PAM8004
INR
-OUTR
+OUTR
SHDN
SHDN
SHDN
GND PGNDL PGNDR
Power Analog Microelectronics, Inc
www.poweranalog.com
08/2010 Rev1.0
1
PAM [ POWER ANALOG MICOELECTRONICS ]
