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很高兴杂音问题已解决,感谢您的反馈!
开始播放和结束播放时的噪声与Ci电容的大小有关,建议选择 0.1µF to 0.39µF,具体说明见数据手册如下截图部分:
SHDN管脚您是直接0V吗?
输出端负载两端的电压是多少?您可以计算下输出功率
在数据手册AUDIO POWER AMPLIFIER DESIGN 部分,有具体设计过程。