使用TPA751输出放大,在音频播放开始和结束时刻。能够听见明显的pop音。尝试过把C3335增大到2.2.uF,没有效果。请大神帮忙指导下。

This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
关于测量信号源内阻,您可以在网上找一下方法,邱关源的《电路》上我记得有讲;
datacheet中公式10 降低POP声的原理是 确保在CB充满电和放大器启动之前,输入电容器CI已充满电( This insures the input capacitor is fully charged before the bypass capacitor is fully charged and the amplifier starts up.)。因此,需要您在使能TPA751之前,TPA751的输入端已经输入了信号