IS31AP2010E Datasheet, PDF (1/7 Pages) Integrated Silicon Solution, Inc – MONO FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER

IS31AP2010E
MONO FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER
Advanced Information
May 2012
GENERAL DESCRIPTION
The IS31AP2010E is a high efficiency, 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.
In cellular handsets, the earpiece, speaker phone, and
melody ringer speaker can each be driven by the
IS31AP2010E. The gain of IS31AP2010E is externally
configurable which allows independent gain control
from multiple sources by summing signals from each
function.
IS31AP2010E is available in UTQFN-9 packages. It
operates from 2.7V to 5.5V over the temperature range of
-40°C to +85°C.
FEATURES
 Supply voltage from 2.7V ~ 5.5V
 High efficiency
 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
 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
Differential
Input
VBattery
B1,B2
VCC
C_S
1F
CIN-
0.1 F
0.1 F
C3
OUT+
RIN-
150k
A3
C1
OUT-
IN-
A1 IS31AP2010E
IN+
CIN+
RIN+
0.1 F 150k
Shutdown
Control
100k
C2
SDB
A2,B3
GND
Figure 1 Typical Application Circuit (Differential Input)
Integrated Silicon Solution, Inc. – www.issi.com
1
Rev. 00A, 05/02/2012