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3页和21页，请对比引脚，等级低不能上图
http://www.ti.com.cn/cn/lit/ds/symlink/tpa3250.pdf
这个资料是同样的问题呀，到底是以哪个为准呢？参考设计与引脚说明页的引脚功能对不上。
哎，看引脚说明那个，原理图有外围电路的引脚有问题，看最前面的那个引脚说明，
