2.5 W Stereo Class D Audio Power Amplifier

The LM4663 is a fully integrated single supply, high efficiency Class D Audio Power Amplifier solution. The LM4663 utilizes a continuous time delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width Modulators
The LM4663 also features a stereo Headphone Amplifier that delivers 80mW into a 32 headset with less than 0.5% THD. The LM4663 has two stereo inputs that CAN be selected to drive either the Headphone Amplifier or the Class D Amplifier All Amplifiers are protected with thermal shutdown.
In standby mode, the LM4663 draws an extremely low 2?A supply current. With a 4 load, the IC's efficiency for a 250mW power level is 69%, reaching 83% at a power level of 2W. The IC features click and pop reduction circuitry that minimizes audible popping during device turn-on and turn-off. The LM4663 is available in a 24-lead TSSOP package, ideal for portable and desktop computer applications.
By National Semiconductor Corporation
LM4663 's PackagesLM4663 's pdf datasheet

LM4663 Pinout, Pinouts
LM4663 pinout,Pin out
This is one package pinout of LM4663,If you need more pinouts please download LM4663's pdf datasheet.

LM4663 Application circuits
LM4663 circuits
This is one application circuit of LM4663,If you need more circuits,please download LM4663's pdf datasheet.

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