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AMC1203: Square wave input

Guru 11120 points
Part Number: AMC1203
Other Parts Discussed in Thread: AMC1210MB-EVM

Hi all,

Please let me know about AMC1203.
The data when sine wave is input to this device is listed in the datasheet.
They are Figure 15 and figure 16.
I do like to see the data when square wave is input.
Please provide me it.


  • Hi ACGUY,

    I’m curious why you are looking for an FFT of a square wave input to the AMC1203. Generally speaking, FFT plots in our datasheets are based on a coherently sampled sine wave so I’m interested in knowing what sort of information you hope to get out of such a plot.
  • Hi Tom,

    That's request from our customer.
    They considering to input an inpulse or step.
    Competiting device is AD7400.
    It can input arbitrary waveform and check the frequency characteristics with EVM and GUI.

    Can AMC1203-EVM perform the same test as competing products?

  • Hi ACGUY,

    From the EVM standpoint, the AMC1203 does work with our AMC1210MB-EVM, and with that GUI you can change the sample rate (control the OSR) and you can also set the filter order (Sync 1, 2 or 3).  I'll look into the control board for the AD7400 and see what other features it has.