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喇叭会有明显噪声

Other Parts Discussed in Thread: TPS61165

问题已解决,是背光电源负极没有接在反馈电阻的前端,现在工作正常了,但是我们又发现了一个新的问题,这个背光驱动在工作时,对板子上的功放芯片有干扰,板子上的喇叭会有明显噪声,请问这个有没有办法解决?