Hi All,
I want to ask how I can detect noise on a line and how to determinate when it may have effects on digital or analog connection quality. For example, I've a digital and an analog line and a 100Khz noise on this 2 lines. How I see this noise on oscilloscope? Also, I was interested in Hantek 6022be but i've read there is a noise of about 20mV on input signal, should this affect my noise detection?
I have also a question on filters, assume I want to use a low pass filter that suppress high freq. , but if I use this filter before an MCU power supply that work at in Mhz range, there may be problems? Inductor may act like a resistance or something like this?
Thank you.