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PCM2912A 的power pin脚确切功能是什么

Other Parts Discussed in Thread: PCM2912A

PCM2912A 的 "POWER" pin:24  输入引脚  功能:Power consumption declaration select pin (LOW: 100 mA, HIGH: 500 mA)

这个power declaration的作用是什么 ,如何应用?

  • It is possible to change maximum power if total power of actual application does not require over 100 mA (set POWER = low to configure as low-power device).

    从这句话看, 应该是控制这个芯片的最大功耗的, 应该是为了应对 USB 供电下的电源负载能力而设置的.

    这个设置也会影响音频的输出功率