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PCM5121: SDOUT从GPIO口输出

Part Number: PCM5121

当SDOUT从GPIO口输出时,数字音量调节功能是否对SDOUT产生作用?

即通过数字音量调节Resister 61/62时,也会调节SDOUT的音量吗?

(如果不可以调节SDOUT的音量,那哪种器件可以调节I2S的数字音量?)

谢谢!