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用MCU的DAC输出信号给TPA3116D2，DAC信号接INP，INN接地，电路设计是参考spec，输出波形在前面几十ms不正常，后面就正常了，查分输入时，信号输出都是正常的，请问单端输入问题怎么解决前面几十ms不正常的问题？紧急，请尽快给予答复，谢谢
