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IS31AP2031 Datasheet(PDF) 1 Page - Integrated Silicon Solution, Inc

Part # IS31AP2031
Description  CLASS-G AUDIO POWER AMPLIFIER
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Manufacturer  ISSI [Integrated Silicon Solution, Inc]
Direct Link  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS31AP2031 Datasheet(HTML) 1 Page - Integrated Silicon Solution, Inc

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IS31AP2031
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/28/2011
1
CLASS-G AUDIO POWER AMPLIFIER
WITH INTEGRATED CHARGE PUMP CONVERTER
January 2012
GENERAL DESCRIPTION
The IS31AP2031 is a Class-G audio power amplifier
with automatic gain control. It drives up to 2.0W (10%
THD+N) into an 8Ω speaker from a 4.2V VDD supply.
The IS31AP2031 provides low cost, space saving
solution for portable equipments which need audio
output with higher power by boosting up supply voltage.
Its external components just include a few capacitors
and resistors (no inductor).
The IS31AP2031 use fully differential design to reduce
RF noise. The IS31AP2031 integrates de-pop circuitry to
reduce pop and click noise during power on/off or
shutdown enable operation. The IS31AP2031 also
integrates thermal and short circuit protection function.
IS31AP2031 is available in QFN-20 (3mm × 3mm)
package. It operates from 2.7V to 4.5V over the
temperature range of -40°C to +85°C.
FEATURES
Operates from 2.7V to 4.5V
2.0W into an 8Ω load from a 4.2V supply(10%
THD+N)
4 gain levels: 12dB, 16dB, 24dB, 27.5dB
AGC function
Pulse Count Control serial interface
8kV HBM ESD
Thermal and short-circuit protection
Integrated Click-and-Pop suppression circuitry
Available in QFN-20(3mm × 3mm) package
APPLICATIONS
Smart phones
Cellular phones
PDAs
GPS
Portable electronics
TYPICAL APPLICATION CIRCUIT
VDD
GND
IS31AP2031
IN-
OUT
OUT
10 F
CN
IN+
CP
0.1 F
4.7 F
VBattery
CIN
22nF
RIN
10k
CIN
22nF
RIN
10k
Differential
Input
AVIN
10V
10 F
SDB
Mode Control
100k
FS
100k
0.1 F
Figure 1
Typical Application Circuit (Differential Input)


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