DPO is designed using a PLL chip LM565, the centre frequency of VCO within which is controlled by 8031 microcontroller using a Resistor Array implemented by CMOS CD4066 switches.

 
  • 該振蕩器使用一片PLL電路LM565,其VCO的中心振蕩頻率由8031單片機經(jīng)由CMOSCD4066開(kāi)關(guān)所接的電阻陣列來(lái)控制。
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