AnsweredAssumed Answered

RCF frequency response of ADuCM350

Question asked by Jiwon.Lee on Sep 11, 2017
Latest reply on Sep 21, 2017 by mark.ramos

Dear,

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.

Thanks.

Outcomes