I'm testing the excitation signal output of EVAL-ADUCM350EBZ, Rev.B
With impedanceMeasurement_2wire.c source.
I got the amplitude of sine wave is decreased when increasing the excitation signal frequency.
For example, Vpp measured at AFE8.
1kHz excitation => 655.6mVpp
10kHz excitation => 644.3mVpp
20kHz excitation => 591.6mVpp
30kHz excitation => 557.4mVpp
It looks RCF causes amplitude drop based on it's frequency response charateristics.
Can I get the graph which contains pass band gain vs frequency.
I want to compare these measurement are right or not.