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AD7400 : output waveform

Question asked by Mr.K on Nov 9, 2012
Latest reply on Nov 13, 2012 by ShaneO

Hello,

 

I have a question about the AD7400.

I connect the AD7400 with the FPGA.

The following waveform is the test input signal to the AD7400.

The signal is a sine wave of 100mV(1Hz) with the noise.

input.jpg

 

The following waveform is an output of the Sinc3 filter in the FPGA.

output.jpg

 

The noise of blue point doesn't appear in this waveform compared with the input signal.

Please let me know your advice about this cause.

 

Regards,

Mr.K

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