各位前辈好!
最近公司用TI的模拟功放TPA3116D2做功放,遇到以下问题:
1、底噪问题:不输入音频时,会听到明显的唦唦声,(音频输入前级断开也会听到唦唦声),这底噪和供电电源有关吗?;
2、开关机会有很大的POP声;
附上功放部分原理图:
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各位前辈好!
最近公司用TI的模拟功放TPA3116D2做功放,遇到以下问题:
1、底噪问题:不输入音频时,会听到明显的唦唦声,(音频输入前级断开也会听到唦唦声),这底噪和供电电源有关吗?;
2、开关机会有很大的POP声;
附上功放部分原理图: