| ??? 05/22/07 13:52 Read: times |
#139624 - look at ADC spec's. Responding to: ???'s previous message |
If you oversample the input signal, as you suggest, and use an ADC that's 4x as fast as the signal you're sampling, but sample at different phase each time you "sweep," you continue to increase the amount of information you have about your signal and can incorporate that into your displayed waveform. The real crux is precise triggering. They once used tunnel diodes for this. The challenge for you is to figure out why they did that rather than any of a number of cheaper/simpler ways.
RE |
| Topic | Author | Date |
| [OT] DSO- How it's made ? | 01/01/70 00:00 | |
| look at ADC spec's. | 01/01/70 00:00 | |
| in other words, | 01/01/70 00:00 | |
| Not quite | 01/01/70 00:00 | |
| tricks & tricks | 01/01/70 00:00 | |
| Analog memories... | 01/01/70 00:00 | |
| that's what the analog 'scope does! | 01/01/70 00:00 | |
| Some interesting reading from Maxim | 01/01/70 00:00 | |
| I have no doubt you can | 01/01/70 00:00 | |
| use for what | 01/01/70 00:00 | |
| Expansion slot test equipment | 01/01/70 00:00 | |
| there is now a plethora of such with USB | 01/01/70 00:00 | |
| crappy GUI | 01/01/70 00:00 | |
| I prefer the "feel" of manually controlled gear | 01/01/70 00:00 | |
| Can't be done, or just hasn't been done? | 01/01/70 00:00 | |
| there's no reason it couldn't | 01/01/70 00:00 | |
| The PeeCee would get in the way | 01/01/70 00:00 | |
| not only... | 01/01/70 00:00 | |
| a few buttons, dials, and knobs, but not enough | 01/01/70 00:00 | |
Critics and suggestions invited - 1GHz sampler | 01/01/70 00:00 |