ground analog equipments 地面模拟设备
analog and digital ground 模拟数字地
ground clutter background analog 地杂波背景模拟
In general these two pins should be joined together and to the analog ground of the system.
通常，这两个引脚应该就近连接后再接模拟地。
The labels "analog ground" and "digital ground" on these pins refer to the parts of the converter to which the pins are connected, and not to the system grounds to which they must go.
引脚标记说明该引脚已连接到芯片内部的哪个部分，并非要把该引脚连接到电路的哪个参考点。
Many ANALOG CIRCUITs scale their input and OUTPUT ranges about a ground reference.
许多模拟电路称它们的输入和输出范围也是以地为参考的。
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