A new type of high-quality filter without Class D amplifier circuit as shown below. One, TPA2000D2 is TI's new production of the small ultra-thin 24-pin package components, in shutdown mode the supply current of less than 1 μ A, to extend the life of the battery power supply. With the traditional AB audio power amplifier, compared to Class-D amplifier power consumption and significantly reduced the amount of heat generated. At the same time, no output filter and feedback, and other components, with the previous solution, the size can be reduced 75 percent, 40 percent cost reduction. TPA2000D2 effective power output of 2 W or 4 Ω speaker output of 4 W peak power, low noise characteristics and high-fidelity, apply to UBS multimedia audio, portable DVD players, personal digital assistant (PDA) and notebook computers.
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