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时钟 [2017/03/26 18:51]
gongyu 创建
时钟 [2017/03/26 18:53]
gongyu
行 7: 行 7:
 The main parameter of a crystal/​oscillator is the resonance frequency. The Quartz is cut at the factory, so if you want a different frequency, you have to use a different part. It is useful to have a few different parts available during FPGA prototyping. The main parameter of a crystal/​oscillator is the resonance frequency. The Quartz is cut at the factory, so if you want a different frequency, you have to use a different part. It is useful to have a few different parts available during FPGA prototyping.
  
-工作原理: +它们都长什么样? 
 +{{ :​crystals_oscillators.jpg |}}
  
 晶体(2个管脚):​ 晶体(2个管脚):​