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Numéro de référence | AAT5102 | ||
Description | 2.5W/Ch Stereo Class D Audio Power Amplifier | ||
Fabricant | Skyworks | ||
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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
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Pages | Pages 19 | ||
Télécharger | [ AAT5102 ] |
No | Description détaillée | Fabricant |
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