https://devzone.nordicsemi.com/f/nordic-q-a/82065/adc-noise-spike-associated-with-ble-radio-transmitHello All, Thank you in advance for your time and interest in this issue and willingness to provide suggestions. We have a product that uses the nRF52832 processor in the BMD-350-A-R module. The issue we&#39;re observing is a noise &#39;spike&#39; in the ADCen-USTelligent Community 13Thu, 25 Nov 2021 12:38:37 GMThttps://devzone.nordicsemi.com/thread/340725?ContentTypeID=1Thu, 25 Nov 2021 12:38:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fc62faf5-2782-41e3-b4fd-29a8450c8343Simonr<p>Hi Tommy</p> <p>My first thought would be that your ADC trace is&nbsp;crossing the antenna&#39;s trace (on the bottom side of the PCB perhaps?) causing it to trig when there are radio events, but I guess that would be visible from an external oscilloscope. So you only see it on the ADC on the nRF side, correct, and not the peripheral it is connected to?</p> <p>Would it be possible to upload the Rev-A PCB schematics and Gerber files so we could do a HW review? I can set this case to Private mode so that only yourself and Nordic engineers are able to view it if you&#39;d like.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>