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音频D类功放IC TPA3123



1、SE工作方式,实际输出功率达不到标称的70%:现象用示波器在负载两端观察,测试正弦波信号的上半周会先于下半周失真,从而影响输出功率。

2、串扰只有20~40dB,达不到标称参数:让人不解的是,串扰信号波形是正弦波的半周,也就是说,串扰信号是失真的。

 

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