PGA411Q1EVM: PGA411 A,B,Z output signal abnormal

Part Number: PGA411Q1EVM

PGA411 GUI parameter set as below picture 1, excitation output signal is normal,resolver input signal is normal.PGA411 A,B,Z output signal abnormal when customer adjust R1x (SCH reference picture 2)achieve sin,cos gain range from 1.0V to 2.1V. PGA411 A,B,Z have continue signal output when resolver angle not change

Picture 1

Picture 2