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ADAU1702 hysteresis settings

Question asked by J3627 on Dec 31, 2014
Latest reply on Jan 6, 2015 by KJBob

I don't understand the auxiliary ADC hysteresis settings:

 

FIL[1:0]

  • 00  4-bit hysteresis (12-bit level)
  • 01  5-bit hysteresis (12-bit level)
  • 10  Filter and hysteresis bypassed
  • 11  Low-pass filter bypassed

 

So with FIL=11, which hysteresis is used?

 

In SigmaStudio it just says "No hysteresis", with no mention of filter being bypassed:

ADC options.png

 

  • 00 4-bit Hysteresis
  • 01 5-bit Hysteresis
  • 10 No Hysteresis
  • 11 No Low Pass Filter

 

So there's no setting to disable hysteresis and keep the lowpass filter?  I have to add my own in software?

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