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TPA3110D2上电POP声

Other Parts Discussed in Thread: TPA3110D2

在应TPA3110D2时,上电有POP声.怎样才能消除?

  • 你好:

    1.适当减小隔直的电容,也不能盲目减少,因为要兼顾输入的带宽。

    2.减小放大倍数,即减小Gain。

    3.改善差分输入的匹配性,使差分输入阻抗竟可能匹配,抵消干扰。

    4.合理控制上电时序,回避POP声。例如:上电前先mute前级或者SD功放,待功放上电稳定后,在解mute或者un SD功放。