PAM8004 Datasheet, PDF (1/11 Pages) Power Analog Micoelectronics – Filterless 3W Class-D Stereo Audio Amplifier

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 2.5W Output at 10% THD with a 4Ω Load
and 5V Power Supply
n Filterless, Low Quiescent Current and Low
EMI
n Low THD+N
n Superior Low Noise
n Short Circuit Protection
n Thermal Shutdown
n Few External Components to Save the
Space and Cost
n Pb-Free Package
Applications
n Portable Speakers
n LCD Monitors / TV
n Notebook Computers
n Portable DVD Players, Game Machines
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.
Typical Application
VDD
PVDD
1µF
1µF
10µF
1µF
0.47µF Ri
INL
VDD
INL
PVDDL PVDDR
+OUTL
1µF
0.47µF
INR
Ri
VREF
INR
PAM8004
-OUTL
-OUTR
SHDN SHDN
SHDN
+OUTR
GND PGNDL PGNDR
Power Analog Microelectronics,Inc
www.poweranalog.com
1
08/2010 Rev1.0