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pcm1794音量控制

Other Parts Discussed in Thread: PCM1794, PCM1792, TPA6120A2

设计一个不带MCU的DAC。选用PCM1794。负载为耳机。请看TPA6120A2的数据手册,将应用电路中的PCM1792改用PCM1794,从LPF一直到耳机放大器均采用平衡式音频线路。请教如何实现音量控制,使用4个音量电位器吗。THANKS