Hi team,
My customer is evaluating ADS1255 in their project and met below issue now, could you please help review and give some suggestions? Thank you.
1. When using the ADS1255, the ADC input can be disturbed by the crystal.
2. The input port waveform has 1.92MHz interference, the crystal is 7.68Mhz
3. The input signal waveform
4. Crystal Waveform
5. Schematic. The1.92Mhz interference is introduced in input that disappears when the ADC is not working.
6. PCB
Regards,
Ivy