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最近在用HP8903B做TLV320AIC3101的音频性能测试,测出的SINAD(信纳比)指标为33dB左右,但是领导要求要达到40dB以上,我通过硬件软件的调试,也只是能达到30dB以上,不知道TLV320AIC3101这款芯片的SINAD(信纳比)可以达到多少?一般是多少可以合格?如果要求从软件上调整芯片的寄存器配置,该调整哪些寄存器,才可以达到提高SINAD(信纳比)性能的目的。希望能得到大家的帮助,谢谢!