【简答题】ADC0809采样控制器的设计 实验要求 用文本编辑输入法设计ADC0809采样控制器,由采样控制器产生ADC0809(模数转换器)在A/D转换过程中的控制信号(如时钟信号、启动信号,数据读出信号和A/D转换数据等)。建立ADC0809采样控制器的实验模式,并通过电路硬件验证,进一步了解ADC0809采样控制器的原理。 设计原理 ADC0809采样控制器的元件符号如图所示,CLK是时钟输入信号;E...
【单选题】Yes. I have, and, of course, they have just what Susan expected:huge blast furnaces, converters, steel ingots, billet mills plate and section mills ,miles of railway track.
【判断题】ADC0809是双积型8位A/D转换器,每片ADC0809可接受8路模拟量输入。
【简答题】Jim : 11 Tracy: I bought this dress for my daughter last week, but 12 , I’d like to change it for a larger one. Jim: Oh, I see. Well, which one would you like to take? Tracy: 13 Jim: OK. May I have a ...
【判断题】尿素做种肥时,可以减少施用量,并与种子分开。