MAX98307ETE+

MAXIM INTEGRATED PRODUCTS  MAX98307ETE+  音频功率放大器, 多层次, D, 1通道, 3.3 W, 2.6V至5.25V, TQFN, 16 引脚

The is a 3.3W mono class DG multilevel audio amplifier in 16 pin TQFN package. This fully differential mono class DG multilevel power amplifier with integrated inverting charge pumps offer highly efficient, high power audio solution. Class DG multilevel modulation extends the dynamic range of output signal by employing charge pump generated negative rail as needed to extend the supply range. This scheme results in high efficiency over a wide output power range. The IC combines Maxim"s active emissions limiting edge rate and overshoot control circuitry with multilevel output modulation to greatly reduce EMI. These features eliminate the need for output filtering as compared to traditional class D devices by reducing component count and cost. The MAX98307 has an adjustable gain set by external resistors.

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Supply voltage range from 2.6V to 5.25V

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Operating temperature range from -40°C to 85°C

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Improves battery life, low quiescent current of 1.85mA and shutdown current of 0.225µA

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Output power of 1.54W 1% THD+N, VPVDD=3.6V, 8ohm + 68µH load & 2.85W VPVDD=5V, 8ohm + 68µH load

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Output power of 1.77W 10% THD+N, VPVDD=3.6V, 8ohm + 68µH load & 3.3W VPVDD=5V, 8ohm + 68µH load

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84% efficiency at VPVDD = 3.6V, 500mW Output

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Power supply rejection ratio of 78dB at VPVDD = 2.6V to 5.25V

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Integrated charge pump and high efficiency results in small solution size

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Excellent RF immunity, click and pop suppression

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Low current shutdown mode, thermal and overcurrent protection