AAT2810
Features
Wide Supply Voltage Range From 2.7V to 5.5V
Filterless Class-G Operation
Output Power at 4V Supply
▪2.4W (8Ω Load, 10% THD+N)
▪2.0W (8Ω Load, 1% THD+N)
Low THD+N: 0.1% (Typical) @ 1kHz (VDD = 3.6V, RL = 8Ω, PO = 1W)
High Efficiency up to 74%
Four Gain Settings: 12/16/24/28dB
Non Clip Control to Suppress Output Clip
Integrated Input Low-Pass Filter for Out-Of-Band Noise Rejection
One-Wire Operating Mode and Gain Control
Auto Recovering Over-Current or Short Circuit Protection
Low EMI Design
Available In VQFN3x3-20L Package
General Description
The AAT2810 is a Class-G audio power amplifier based upon a battery-tracking AGC technology. It can deliver up to 2.4W into an 8Ω load with 10% THD+N. Its high efficiency, up to 74%, helps greatly extend battery life for portable applications.
The AAT2810 employed by an internal charge pump generates a 6V supply voltage for the output stage of the Class-G audio amplifier, thus allowing a much higher output power than a conventional stand-alone amplifier directly connected to the battery supply voltage. The AGC technology allows the audio signal to be adaptively amplified for a maximum dynamic range of the output signal without clipping, which might be otherwise resulted from an over-level input signal or a lower supply voltage.
The AAT2810 incorporates a low-pass filter (100kHz) at the inputs to enhance RF rejection and reduce DAC out-of-band noise, therefore greatly improving the signal-to-noise ratio (SNR).
The AAT2810 employed by an internal charge pump generates a 6V supply voltage for the output stage of the Class-G audio amplifier, thus allowing a much higher output power than a conventional stand-alone amplifier directly connected to the battery supply voltage. The AGC technology allows the audio signal to be adaptively amplified for a maximum dynamic range of the output signal without clipping, which might be otherwise resulted from an over-level input signal or a lower supply voltage.
The AAT2810 incorporates a low-pass filter (100kHz) at the inputs to enhance RF rejection and reduce DAC out-of-band noise, therefore greatly improving the signal-to-noise ratio (SNR).
Application
Cell Phones
Smart Phones
MP3/4/5
Portable Electronic Devices
Smart Phones
MP3/4/5
Portable Electronic Devices