Hi...
My customer is testing LDC1614 through EVM with pattern coil pcb. they are checking the change of inductance value when finger is pressed on coil pcb.
But there is inductance value's difference between "enable low power sensor activation mode"and "enable high current sensor drive".
Why is it so different like bellow pictures?
1. Low power sensor activation mode
Inductance value is increased.
Configuration
2. High current sensor drive
Inductance value is decreased.
Configuration
Regards
JP