Part Number: AFE5803 Tool/software: Dear Manage Team I'm trying to make an ultrasonic transmission and reception system using AFE5803. I think I read in Datasheet that the VCNTLM and VCNTLP pins in AFE5803 adjust the attenuation by the voltage difference between the two pins. If I use these pins, do I choose the attenuation I want and continuously supply the voltage accordingly? Also, if I don't use these pins, I wonder if they are floating or connected to GND. and is it okay to adjust attenuation without using these pins with SPI? Thank you Best regard Hwijin
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