IS31AP2006 Datasheet, PDF (1/14 Pages) Integrated Silicon Solution, Inc – 3W MONO FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER

IS31AP2006
3W MONO FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER
April 2012
GENERAL DESCRIPTION
The IS31AP2006 is a high efficiency, 3W mono
Class-D audio power amplifier. A low noise, filter-less
PWM architecture eliminates the output filter, reducing
external component count, system cost, and
simplifying design.
Operating in a single 5V supply, IS31AP2006 is
capable of driving 4Ω speaker load at a continuous
average output of 3W with 10% THD+N. The
IS31AP2006 has high efficiency with speaker load
compared to a typical class-AB amplifier.
In cellular handsets, the earpiece, speaker phone, and
melody ringer can each be driven by the IS31AP2006.
The gain of IS31AP2006 is externally configurable
which allows independent gain control from multiple
sources by summing signals from each function.
The IS31AP2006 is available in DFN-8 (3mm×3mm)
packages.
FEATURES
 5V supply at THD = 10%
-3W into 4Ω (Typ.)
-1.70W into 8Ω (Typ.)
 Efficiency at 5V:
-83% at 400mW with a 4Ω speaker
-89% at 400mW with an 8Ω speaker
 Optimized PWM output stage eliminates LC
output filter
 Fully differential design reduces RF rectification
and eliminates bypass capacitor
 Integrated pop-and-click suppression circuitry
 DFN-8 (3mm×3mm) packages
APPLICATIONS
 Wireless or cellular handsets and PDAs
 Portable DVD player
 Notebook PC
 Portable radio
 Educational toys
 USB speakers
 Portable gaming
TYPICAL APPLICATION CIRCUIT
Figure 1 Typical Application Circuit (Differential Input)
Integrated Silicon Solution, Inc. – www.issi.com
1
Rev.A, 03/27/2012