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Noise observed when 150 Hz test tone data is captured using EVAL-ADAS1000 EVM.

Category: Hardware
Product Number: EVAL-ADAS1000


We are trying to capture the Test tone data using EVAL-ADAS1000 EVM. The 1Hz, 10Hz test tone waveforms are fine. However, 150Hz test tone waveform is not proper. 

In Frame control register We are using a setting of Every 4th frame is output. Is it the issue because our sampling rate is 500 Hz...? Please clarify.


Parents Reply
  • Hi Subbash,

    With 500Hz sampling, you're capturing only 3 points of your sine wave so the data you're getting is probably right. 

    Just to make sure that you have configured the part properly, have you tried following the example from the datasheet?

    Example 4: Configure 150 Hz Test Tone Sine Wave on Each ECG Channel and Stream Conversion Data