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PCM1502A的XSMT Pin (Soft Mute / Soft Un-Mute)硬件连接问题

Other Parts Discussed in Thread: PCM5102A

Dear Sir,

   我们准备使用PCM1502A进行I2S to Analog 转换,datasheet中XSMT PIN的硬件用法有几个地方存在歧义。

 现在DVDD准备使用1.8V,即数字IO口(I2S)为1.8V。不准备使用DAC的MUTE功能,按理应该上拉到DVDD电源?但是datasheet中写Un-MUTE 数字部分需要大于2V(11.3中),或者直接连接到AVDD(9.3.3)?但是看11.2.2应该是IC内部有默认上拉的,应该悬空就是默认Un-MUTE。到底哪个是对的?谢谢!

11.3


9.3.3中:

11.2.2: