appsee
Newbie level 3
I've been trying to measure the output voltage noise (V/sqrt(Hz)) on a unity gain amplifier with the spectrum analyzer. Now, I've noticed that when I dial down RBW, the noise is also lowered. Can you explain to me:
1. What is RBW and what does it do?
2. How can I find out what my output voltage noise is? Depending on what RBW is set to, its either to smaller or larger than what is spec'd in the datasheet @ 10kHz.
I thought this might have to do with the noise of the analyzer itself but that doesn't seem to be the case because I remove the amplifier, the noise floor drops significantly lower.
1. What is RBW and what does it do?
2. How can I find out what my output voltage noise is? Depending on what RBW is set to, its either to smaller or larger than what is spec'd in the datasheet @ 10kHz.
I thought this might have to do with the noise of the analyzer itself but that doesn't seem to be the case because I remove the amplifier, the noise floor drops significantly lower.