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TPA3245四通道问题

Other Parts Discussed in Thread: NE5532, TPA3245

按照官网给的原理图画板安装之后,A和B通道输出正常,C和D通道在放大声音后,低音出来的时候喇叭突出很明显,声音也是异常的,如果输入和输出A通道和C通道,两边声音都是异常,只有在BTL模式下A和B、C和D输出没有问题,请问这个问题怎么解决?项目进行中,请TI工程师看到信息后及时回复,谢谢!