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杨军

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[问答]

CE5212 Designer Sinewave LUT项目错误

需要解决的几个问题
1)全局属性,OpAmp Bias和ANANOLL缓冲器属性都设置为低功耗,
正弦波失真。这些应该设置为高功率。
2)由于缓冲器不是R R,所以当接近任一个时,它会加剧DAC输出的失真。
钢轨。也许一个注释应该添加到AP注释中。
3)作为一个练习,为了消除2中的失真,我增加了一个PGA,设置它的G & lt;1,以获得波形。
从轨道上,会出现一个高度扭曲的波形,?不知道为什么。
注意:在所有观测中,仅用10m范围探头加载缓冲器,可能在2的情况下加载高负载。
可能会改善输出失真?
PSoC设计师5.4
问候,Dana。

以上来自于百度翻译


     以下为原文
  A couple of issues that need addressing -
     
    1) Global properties, the OpAmp Bias and Ananlog Buffer properties both were set to low power,
    so sine wave distorted. Those should be set to high power.
     
    2) Because the A Buffer is not R-R, its exacerbates the distortion of the DAC output when close to either
    rail. Maybe a note should be added to ap note covering this.
     
    3) As an exercise, to eliminate the distortion in 2), I added a PGA, set its G < 1, to get waveform away
    from rails, and woulnd up with a highly distorted waveform, ? Not sure why.
     
    Note A Buffer was only loaded with 10M scope probe in all observations, maybe in case of 2) high load
    might actually improve output distortion.....?
     
    PSOC Designer 5.4
     
    Regards, Dana.

回帖(1)

杨军

2019-6-13 12:03:03
该项目是CE52126,在我先前的标题输入。
问候,Dana。

以上来自于百度翻译


     以下为原文
  The project is CE52126, typo in my prior Title entry.
     
    Regards, Dana.
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