PSOC3/5中模拟模块和数字总线之间的隔离如何分开

嗨，Rickzhou，
PSoC 3/5内部结构分别为模拟、数字和I/O的独立电源，分别通过引脚VDDA、VDDD和VDDIO。芯片的4个象限可以与4个不同的VDDIO电平一起使用。
也有2个内部1.8V调节器，为内部核心逻辑提供数字（VCCD）和模拟（VCCA）电源。
有关电源系统的更多信息可在以下链接的技术参考手册中找到：
HTTP://www. CyPress？COM/？DOCID＝26848
此外，为了最佳使用模拟块，必须遵循一些最佳实践，这在这些应用笔记中被突出显示：
HTTP://www. CyPress？COM/？DOCID＝25562
HTTP://www. CyPress？COM/？DOCID＝26389
当做，
DASG



     以下为原文
  Hi Rickzhou,
     
    PSoC 3/5 internal architecture has separate supply for Analog, Digital and I/O which are through the pins Vdda, Vddd and Vddio respectively. The 4 Quadrants of the Chip can be used with 4 different Vddio levels.
    There are also 2 internal 1.8V regulators which provide the digital (Vccd) and analog (Vcca) supplies for the internal core logic.
    More information on the power supply system can be found in the Technical Reference Manual at the following link:
    http://www.cypress.com/?docID=26848
     
    Also for optimum use of the Analog block, some Best Practises has to be followed, which are highlighted in these Application Notes:
    http://www.cypress.com/?docID=25562
    http://www.cypress.com/?docID=26389
     
    Regards,
    dasg

亲爱的DASG
非常感谢你的帮助，你给我的文章很有帮助！但是我应该问更多关于模拟接口的事情，就像附上的图片吗？
因为一些模拟组件，如ADC，DA和COMP将通过模拟接口将一些数据传输到UDB或CPU。模拟接口能像模拟偶那样完全隔离模拟和数字吗？如果不能分开，电源和GND在一些严格的条件下可能会减少。
非常感谢！
里克
AbIF.BMP
621.5 K



     以下为原文
  Dear Dasg
        Thanks a lot for your  great  help and the articles you show to me are very helpful! But should I ask something more about the analog interface,just like the picture attached?
         Because some analog components like ADC,DA and Comp will transfer some data to UDB or CPU through analog interface. And can the analog interface isolate analog and digital entirely,just like photo-couple? If it can't  the separation of power supply and GND may be meaningless in some strict conditions.
            Thank you very much!  
         Rick

 

•   ANAIF.bmp 621.5 K
  
  

DASG，你能提供你提到的两个应用笔记的更新链接吗？谢谢。西蒙



     以下为原文
  dasg, can you provide updated links for that two application notes you mentioned? Thanks. Simon