IS31AP2010B Datasheet, PDF (1/12 Pages) Integrated Silicon Solution, Inc – 3W@5.0V MONO FILTER-LESS, CLASS-D AUDIO POWER AMPLIFIER

IS31AP2010B
3W@5.0V MONO FILTER-LESS, CLASS-D AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
The IS31AP2010B is a high efficiency, 3W@5.0V
mono filter-less class-D audio power amplifier. A low
noise, filter-less PWM architecture eliminates the
output filter, reduces external component count,
system cost, and simplifying design.
AUGUST 2011
FEATURES
 5.0V supply at THD+N = 10%
 ―3W into 4Ω (Typ.)
 ―1.68W into 8Ω (Typ.)
 Efficiency at 5.0V
Operating in a single 5.0V supply, IS31AP2010B is
capable of driving 4Ω speaker load at a continuous
average output of 3W@10% THD+N. The
IS31AP2010B has high efficiency with speaker load
compared to a typical class- AB amplifier.
In cellular handsets, the earpiece, speaker phone, and
melody ringer speaker can each be driven by the
IS31AP2010B. The gain of IS31AP2010B is externally
configurable which allows independent gain control
from multiple sources by summing signals from each
function.
 ―85% at 400mW with a 4Ω speaker
 ―88% at 400mW with a 8Ω speaker
 Less than 1μA shutdown current
 Optimized PWM output stage eliminates LC
output filter
 Fully differential design reduces RF
rectification and eliminates bypass capacitor
 Improved CMRR eliminates two input coupling
capacitors
 Integrated click-and-pop suppression circuitry
IS31AP2010B is available in UTQFN-9 packages. It
operates from 2.7V to 5.5V over the temperature range
of -40°C to +85°C.
 UTQFN-9 package
 RoHS compliant and 100% lead(Pb)-free
APPLICATIONS
 Wireless or cellular handsets and PDAs
 Portable DVD player
 Notebook PC
 Portable radio
 Educational toys
 Portable gaming
TYPICAL APPLICATION CIRCUIT
Figure 1 Typical Application Circuit
Copyright © 2011 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any
time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are
advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the
product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not
authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com
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Rev. A, 06/24/2011