Timeline for SNR (Signal noise ratio) calculation (RC filter)
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Feb 19, 2022 at 20:26 | answer | added | qrk | timeline score: 4 | |
| Feb 19, 2022 at 19:16 | comment | added | Lush | Maybe I'm wrong, the cutoff frequency is equal to 1.6kHz for a 1k-100nF. So the effective noise bandwidth will be 1.57 * 1.6kHz =2.51kHz. How to use this information to calculate the output noise? Is it 0.001 * sqrt(2.51k)? | |
| Feb 19, 2022 at 19:02 | comment | added | Andy aka |
After some research, I just found the "Equivalent Noise Bandwidth" that not really help me. - then you probably misunderstood it because, as far as I'm aware it is the definitive way to calculate the RMS noise coming from filtered white noise. So, if the filter is a single order type, the effective noise bandwidth is 1.57 x the 3 dB frequency of the filter.
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| Feb 19, 2022 at 18:52 | answer | added | lazba | timeline score: 0 | |
| Feb 19, 2022 at 18:46 | comment | added | Lush | It's just the method I would like to know. Let's say that the frequency content is 1kHz, and the bandwidth is 1MHz | |
| Feb 19, 2022 at 18:40 | comment | added | GrapefruitIsAwesome | That's going to depend on the frequency content of the desired signal and bandwidth of the input noise. | |
| S Feb 19, 2022 at 18:36 | review | First questions | |||
| Feb 19, 2022 at 18:58 | |||||
| S Feb 19, 2022 at 18:36 | history | asked | Lush | CC BY-SA 4.0 |