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IS31AP2145A

ISSI
Part Number IS31AP2145A
Manufacturer ISSI
Description MONO CLIP-LESS & FILTER-LESS CLASS-D
Published Feb 23, 2013
Detailed Description IS31AP2145A 2.9W@5.0V MONO CLIP-LESS & FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER December 2011 GENERAL DESCRIPTION The I...
Datasheet PDF File IS31AP2145A PDF File

IS31AP2145A
IS31AP2145A

Overview
IS31AP2145A 2.
9W@5.
0V MONO CLIP-LESS & FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER December 2011 GENERAL DESCRIPTION The IS31AP2145A is a 2.
9W@5.
0V mono, clip-less, filter-less, high efficiency Class-D audio power amplifier with automatic gain control.
The IS31AP2145A integrates AGC (Automatic Gain Control) function to automatically prevent distortion of the audio signal by which we can enhance audio quality and also protect the speaker from damage at high power levels.
The AGC function and its attack time/release time are selectable via the CTRL pin.
The IS31AP2145A also provides thermal and over current protection functions.
In addition to these features, 90% high efficiency, improved RF-rectification immunity, a fast start-up time and small package size make IS31AP2145A ideal choice for cellular handsets, PDAs and other portable applications.
IS31AP2145A is available in a 1.
5mm×1.
5mm UTQFN-9 package.
FEATURES            Filter-less Class-D architecture AGC enable/disable function 2.
9W into 4Ω at 5.
0V (10% THD+N) Power supply range: 2.
7V to 5.
5V Selectable attack and release times Minimum external components High efficiency: 90% Click-and-pop suppression Low shutdown current: 0.
1μA Short-circuit and thermal protection Space-saving UTQFN-9, 1.
5mm × 1.
5mm APPLICATIONS        Wireless or cellular handsets and PDAs Portable navigation devices Portable DVD player Notebook PC Educational toys USB speakers Portable gaming TYPICAL APPLICATION CIRCUIT http://www.
DataSheet4U.
net/ VBattery A2 0.
1 F VDD VREF B2 1 F 1 F CIN 33nF A1 Differential In CIN 33nF R1 CTRL1 R2 CTRL2 R3 0.
1 F C1 IN+ IN- OUT+ A3 IS31AP2145A OUTC3 C2 CTRL GND B1,B3 Figure 1 Typical Application Circuit (Differential Input) Integrated Silicon Solution, Inc.
– www.
issi.
com Rev.
A, 11/20/2011 1 datasheet pdf - http://www.
DataSheet4U.
net/ IS31AP2145A Figure 2 Typical Application Circuit (Single-Ended Input) http://www.
DataSheet4U.
net/ Integrated Silicon Solution, Inc...


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