本文给出了弱电中常用的电平标准的定义，希望对各位能有所帮助。

In this paper, the weak level commonly used in standard definition, in the hope that you can help.

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在调制驱动电路中，采用MAX3263芯片，具备标准的PECL电平接口，可以灵活地调整激光器的预置电流和调制电流，并具备自动功率控制功能。

In modulation driving circuit, with the chip MAX3263, being the function of APC, there is standard PECL level interface to modulate laser modulation current and preset current neatly.

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此门阵列采用的BFL预功能级标准逻辑单元，具有九种组合逻辑功能及两种不同选择的驱动能力，并具有输出电平调节功能。

The pre-functional cell of standard buffered FET logic (BFL) adopted by the gate array possesses nine logic functions, two different kinds of driving capabilities, and the level control ability.

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