嗨,伊北,
通过PGA后,模拟信号将从0~3.96V变化。ADC使用的参考是什么?
VSS是PSOC引脚的接地(0V)。而AGND可以从PSOC设计器提供的各种选项中选择。REF MUX可以用来选择AGND值。
可用的选项是VDD / 2,BandGap,1.6带隙,2带隙,或引脚。
如果AGND是基于VDD的,那么VDD中的改变也会导致AGND的变化。BandGap将保持相当稳定。
以上来自于百度翻译
以下为原文
Hi Nate,
After passing through PGA, the analog signal will vary from 0-3.96V. What is the Reference you are using for the ADC?
Vss is the ground (0V) which is given to the Pin of PSoC. Whereas AGND can be chosen from various options available using PSoC Designer. The Ref Mux can be used to choose the AGND value.
The options available are Vdd/2, BandGap, 1.6BandGap, 2BandGap, or Pins.
If AGND is based on Vdd, then changes in Vdd will also cause change in AGND. BandGap will remain fairly stable.
嗨,伊北,
通过PGA后,模拟信号将从0~3.96V变化。ADC使用的参考是什么?
VSS是PSOC引脚的接地(0V)。而AGND可以从PSOC设计器提供的各种选项中选择。REF MUX可以用来选择AGND值。
可用的选项是VDD / 2,BandGap,1.6带隙,2带隙,或引脚。
如果AGND是基于VDD的,那么VDD中的改变也会导致AGND的变化。BandGap将保持相当稳定。
以上来自于百度翻译
以下为原文
Hi Nate,
After passing through PGA, the analog signal will vary from 0-3.96V. What is the Reference you are using for the ADC?
Vss is the ground (0V) which is given to the Pin of PSoC. Whereas AGND can be chosen from various options available using PSoC Designer. The Ref Mux can be used to choose the AGND value.
The options available are Vdd/2, BandGap, 1.6BandGap, 2BandGap, or Pins.
If AGND is based on Vdd, then changes in Vdd will also cause change in AGND. BandGap will remain fairly stable.
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