FT114-43 12T CMRR

Oscilloscope Voltage Measurement Method

CMRR = 20 * LOG(27.2 / 0.720) = 31.5 dB

SimSmith Model Method

Calculate Complex Impedance

Calculator Link

Q = 1450 / 993 = 1.46

SimSmith Model using LC model

SimSmith Model using R Equivalent Model

Using Z from this model