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| R&S to launch MXO5 |
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| jjoonathan:
It's ok to not have hype, but it's ok to have hype too :popcorn: Those fast FFTs are pretty slick. Maybe even something about differential channels or a motor app? Given the sample rates, I suspect the ADC is the same TI chip from the MXO4. On one hand, we all like to hear about crazy custom ADCs, but on the other, for hobby purposes it's nice to have obtanium inside. If a zillion channels becomes the standard, I have a sneaking suspicion that single-channel fails will land powerful scopes onto the benches of enthusiasts, so it's good for us if those are repairable ^-^ Also, when I took a second look at the datasheet today I saw something I didn't see last time, namely the background calibration routine (7-4). Apparently it swaps redundant ADC cores in and out to achieve on-the-fly background calibration. Very cool! |
| tv84:
--- Quote from: Martin72 on October 30, 2023, 09:42:41 pm ---Theoretically. --- End quote --- tv84: Stay away from the light!!! Martin72: Next Xmas, maybe I... ::) |
| nctnico:
--- Quote from: pdenisowski on October 31, 2023, 01:21:29 am --- --- Quote from: Stranger_danger on October 30, 2023, 11:26:21 pm ---Since the cat is out of the bag, can you elaborate on the MXO5 ASIC? You make the comment of spending 4 years to build your own for the MXO4 and starting this one well before that. The MXO5 datasheet says it's 2.5GS/s and 12-bit ADC and 18-bit architecture in HD mode. Is this a R&S custom made ASIC/ADC chipset as well? and how does 18-bit storage work? --- End quote --- We actually started the brainstorming for the MXO4 back in 2016 (!!!) and started active development in 2018. And yes, the ASIC in the MXO is our custom-designed MXO-EP (200 Gbit/s). Among other things, this ASIC enables an update rate of up to 4.5 million acquisitions/s, which is the world's fastest update rate, as tested by Dave Jones himself. Dave also did a teardown video if you're interested: https://www.eevblog.com/forum/blog/eevblog-1545-worlds-fastest-oscilloscope-mxo4-teardown/ The MXO can use something called high-definition mode where bandwidth is traded off for bits of vertical resolution (lower BW -> more bits). I actually made a video that provides a brief technical introduction HD mode and how it increases vertical resolution (compared to other methods). --- End quote --- What would be super nice is a mode where you can have a fixed bandwidth setting. Recently I used my Yokogawa 12 bit scope to measure tiny signals (in the 50uV/div territory) and what helps a lot is being able to filter down to a couple of hundred Hz using a fixed setting. Now this Yokogawa design is 20 years old so nowhere near as low noise as modern oscilloscopes so it should be possible to achieve similar performance using higher bandwidths. One of the things that annoys me when using high resolution modes is that you never really know with what bandwidth you are looking at a signal. |
| 2N3055:
--- Quote from: pdenisowski on October 31, 2023, 01:21:29 am --- --- Quote from: Stranger_danger on October 30, 2023, 11:26:21 pm ---Since the cat is out of the bag, can you elaborate on the MXO5 ASIC? You make the comment of spending 4 years to build your own for the MXO4 and starting this one well before that. The MXO5 datasheet says it's 2.5GS/s and 12-bit ADC and 18-bit architecture in HD mode. Is this a R&S custom made ASIC/ADC chipset as well? and how does 18-bit storage work? --- End quote --- We actually started the brainstorming for the MXO4 back in 2016 (!!!) and started active development in 2018. And yes, the ASIC in the MXO is our custom-designed MXO-EP (200 Gbit/s). Among other things, this ASIC enables an update rate of up to 4.5 million acquisitions/s, which is the world's fastest update rate, as tested by Dave Jones himself. Dave also did a teardown video if you're interested: https://www.eevblog.com/forum/blog/eevblog-1545-worlds-fastest-oscilloscope-mxo4-teardown/ The MXO can use something called high-definition mode where bandwidth is traded off for bits of vertical resolution (lower BW -> more bits). I actually made a video that provides a brief technical introduction HD mode and how it increases vertical resolution (compared to other methods). Not sure how much more I can say before the official launch (4 hours from now) :) --- End quote --- That HiDef mode is equivalent to ERES in LeCroy and Siglent and HiRes by other manufacturers. R&S, like LeCroy and Siglent, provide pretty fine control of the process, which makes it useful. I think 6bit "enhancement" (12->18bit) is bit of a stretch, but it is useful as a lowpass filter anyways.. ^-^ |
| luudee:
Very exciting ! Can't wait for actual configurations & pricing and availability date ! I'm still in the market for an upgrade ... EDIT: Found the answers I was looking for: https://www.rohde-schwarz.com/th/products/test-and-measurement/oscilloscopes/rs-mxo-5-oscilloscope_334228.html Cheers, rudi |
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