Analog Discovery 2 Quick-Start: Video 8 - Spectrum Analyzer 

Hi Varun, The start, stop, frequency bins, center, span, and samples are all related values. If you change one, you'll notice that some of the others will update to reflect what the tool is capable of. If you have a particular resolution in mind, you can enter a value and WaveForms will automatically adjust to the value that the device is capable of, given the other related values.

Thanks for the answer Kaitlyn. I do understand now how resolution relates to bins and stop frequency: Resolution = STOP_Frequency/BINS. So resolution is simply hz/division in frequency spectrum i.e. how far in Hz are two adjacent frequency bins in the frequency spectrum. Related to this, I have another question. Although Network analyzer does a good job in getting frequency response, I often want to manually apply a sweeping sinusoidal signal to a circuit input and then see the frequency spectrum from the circuit output. What I donot understand is how to choose the time for sweep to get a stable display on spectrum analyzer during Run mode. Say I want to sweep an un-damped sinusoid of 5V amplitude from 1 Khz to 1 MHz through a circuit input. What sweeping time should I choose ? Should it be 1 ms, 1 us, 1 sec, etc. How to intelligently choose this value so that I can see stable spectrum during Run mode ? My intuition also says the sweep time controls number of frequency components and number of cycles of individual components generated but I donot get how these parameters are mathematically related.

Hey Varun, Would you mind posting this question on the Digilent Forum (forum.digilentinc.com).

Alright. I will do that Kaitlyn