请问PCM5242单端输出(OUTP串470R,并2.2nF到地,OUTN NC)时,THD+N及SNR是否和规格书一样?
或者说规格书上参数,是否只匹配差分输出?
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您好,我认为一样的,差分输出的话 ,信号电平指的是差值电压。单端输出的话指的是单端电平。
比如1Vrms的输出时测试SNR,那么
单端输出Vout=1Vrms
差分输出 Vout=Vod=(Vout+-Vout-)=1Vrms