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TPA2015D1: 调试问题

Part Number: TPA2015D1


TPA2015D1的功放:

1,我们在调试的过程发现,输出幅度小于1V失真度就大于1%了?

2,输出幅度1.5V时,失真度为0.2%左右,是否属于正常?

3,输入底噪4uV,功放输出有35uV是否正常?

4,下面是TPA2015D1的原理图,帮忙检查是否无误?