Hi all,
We are testing TCAN1042GV-Q1 CI [Input capacitance to ground (CANH or CANL)].
Our Test Methodology:
1. RF coaxial cable with SMA connector mount to CAN_H and CAN_L.
2. Tested by Vector Network analyzer with 1-port calibration and port extension.
3. Connect DUT to VNA port-1.
3. Read capacitance values at Smith Chart mode.
And test results is 35 pF. [Spec. = 30 pF @MAX]
We would like to know why the test result doesn't meet spec. ? Or any advice for test methodology?
Best regards,