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Skyworks - 2.5W/Ch Stereo Class D Audio Power Amplifier

Numéro de référence AAT5102
Description 2.5W/Ch Stereo Class D Audio Power Amplifier
Fabricant Skyworks 
Logo Skyworks 





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AAT5102 fiche technique
DATA SHEET
AAT5102
2.5W/Ch Stereo Class D Audio Power Amplifier
General Description
The AAT5102 is a high efficiency, high performance ste-
reo class D audio amplifier. It is designed to operate in a
wide supply voltage range from 2.5V to 5.5V and is tar-
geted to deliver up to 2.5W output power to a 4Ω load
with× 5V power supply. Efficiency of up to 90.5% makes
it ideal for portable applications.
The AAT5102 has four adjustable amplifier gains with 6,
12, 18 and 24dB programmed by two external pins. Two
shutdown control pins are employed to control the left
and right channels independently.
The AAT5102 also integrates over-temperature protec-
tion circuitry to prevent internal junction temperature
over-heating.
The AAT5102 is offered in a Pb-free, thermally enhanced,
space-saving 1.645mm × 1.645mm 16-pin WLCSP pack-
age and in the 3mm × 3mm 16-pin QFN package, and is
specified for operation over the -40°C to +85°C ambient
temperature range.
Features
Wide Supply Voltage Range (2.5V to 5.5V)
Maximum Battery Life and Minimum Heat
5mA Quiescent Current at 3.6V VDD
<1μA Shutdown Current
Up to 90.5% Efficiency
Output Power at 10% THD+N
2.5W x2 to 4Ω at 5V VDD
1.6W x2 to 8Ω at 5V VDD
High Performance
THD+N of 0.03%, at 5V VDD, 8Ω Load and POUT =
1.0W
SNR of 102dB at 5V VDD, 8Ω Load and 1% THD+N
Shutdown Control
Independent Control per Channel1
Internal 300kΩ Pull-down Resistors
Filter-less Capability
Four Programmable Gains: 6, 12, 18 and 24dB
Thermal Protection
Excellent PSRR
Built-in Pop-click Suppression Circuitry
1.645mm × 1.645mm 16-Pin WLCSP Package
3mm × 3mm 16-Pin QFN Package
Typical Application
Applications
• Cellular Phones
• MP4s
• Notebook Computers
• PDAs
• Portable DVD Players
VDD
2.5 – 5.5V
4.7μF
1μF PVDD AVDD
+ INPL
1μF
OUTNL
- INNL
Audio
1μF
Source +
INPR
1μF
- INNR
OUTPL
OUTNR
OUTPR
AAT5102
Control
SDL
SDR
PGA1
PGA0
PGND
AGND
1. When independent control is used, the device ground and the audio source ground should be connected together.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201877B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012
1

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