That is the reason for the flimsy handle axle. With all the expensive thechnology they had to cut the cost at least somewhere. Not sure how much they managed to save though.
I used an adc 16bit for current measuring shunt and it costs like 4$ for the chip breakout board alone almost as much as my mcu. Are ADCs generally expensive?
"Whoever laid out this board takes pride in their work and they know what they're doing." That Rohde & Schwarz engineer should be putting that sentence with a link to this point in the video into their resume (or perforrmance review) 😆
As a PC enthusiast, love seeing the NB eLoop there! Until the Noctua A12X25 came out, the eLoop and Nidec GT were top dog. I don't really know electronics, but enjoy these teardowns.
yeah the 3000 series has loads of issues, like frontends dying randomly, knobs falling off, that kind of thing. My uni had to send all 10 of them we have in the lab back to get the fixes installed.
The most action is happening in the software, like VHDL and also in the ASIC. So not so an impressive schematics I suppose. Old skool top line Tek scopes scopes would have much larger schematics.
Dave, thanks for the tear down. Wouldn’t dare attempt with the MXO4 on my bench. Not enough can be said about the fan and lack of noise from this scope. It really is a thing of beauty.
Ah 😀so there *are still* companies making quality designed and well-put-together pieces of equipment. Albeit in the somewhat high price-segment 😅 Beautiful instrument to see the internals and construction of, my compliments to the design-team of the R&S MXO4 🥇. And thank you for the cool video Dave ! 🌠
@@pauldenisowski Paul, from one engineer to another. One of the many things that sets R&S apart from lots of others is your companies true desire to be a part of the maker and hobby community. Even though a fraction of a percent of us can even begin to afford your kit, you still are in the trenches and seeing what we all think. As you are very keenly aware, that the makers and hobbyists have technical day jobs and a portion of us use high end kit at work and/or have influence on the kit that our companies invest in. Its smart from a marketing and business POV, but it always seems far more genuine than business. It always seems driven by engineers and technicians, for engineers and technicians. I think that is what makes your company really special. Siglent seems to also do this and it always seemed that's the way HP was run.
@@StreuB1 Thanks! R&S is very much an engineering-driven company and we have an awful lot of hobbyists and amateur radio operators (myself included - KO4LZ) working here. So yes, our interest is very genuine :)
@@pauldenisowski It shows!! You and your teams, keep it up. Please send my thanks to your guys! (can we still say that and mean men and women, together? lol) N0BPS 🙂
12:06 These 6 identical Micron memory chips (D9WFH) could form a single 12-bit word memory array for samplings storage. 20:22 There's another Micron 8Gb DRAM chip (D9TBK) near by which could be dedicated for MSO sampling. This is my guess. )
Those are (probably x8) DDR4 memory chips. 48bit memory bus, each transfer operation taking 4 cycles, 48 bytes total (32×12bit samples) per transfer. Extra single DRAM chip - probably RAM for ARM cores
D9WFH is for the MT40A512M16LY-075:E which has a 512M16 configuration (4 pieces -> 64bit) Who knows how they arranged the memory ... could be 12bits for the sample with 4bits input state -> 16bits x 4 channels -> 64bits We can only have a pure guess at it. But the max memory depth of the scope is 400Mpoints and those 4 memory chips are 512M16x4 which is certainly enough.
Romanian electronics engineer here! Thanks Dave for pointing it out! I will research exactly where (at what plant in Romania) was made and make it public!
At 13:43, ch 4 (from the left), does the pcb have leftover flux from some rework? I wasn't going to be too picky, but since you talked about contaminents on the pcb.. Don't get me wrong, the board layout is extremely beautiful.
Maybe the extra 'scope' for shielding (I'm here all week) is future-proofing for the line? They must be planning on using the same board for even higher bandwidths.
Do the outlines that allow for rf cans provide rf shielding by themselves? With the tiny smd components being close to the pcb, they are almost in a box without a lid.
Maybe fastest sampling rate, but "fastest" usually refers to waveform update rate, and the MXO is several times faster than the Lecroy in that respect.
Fastest = highest number of waveform per seconds. People often confuse sampling rate (or worse yet, bandwidth) with waveform acquisition rate. Sampling rate is simply how fast the scope can digitize the input signal. But those samples have to be converted into waveform records and displayed, and this is where acquisition rate is important: most scopes discard the (vast) majority of samples because they can't turn them into waveforms fast enough. By this metric, the MXO4 is at least an order of magnitude faster than most other scopes (thanks to its custom ASIC).
Wow, actually wearing a wrist strap?! Did you blow something up by zapping it recently? 😁 I still don't understand "waveform updates per second" being such a hyped marketing term. Maybe they should instead talk about percentage of time acquired? "Waveform updates" is dependent on how big a waveform is, the sample rate, etc. It doesn't seem like it actually tells you a lot?
If you see "Made in Romania" is a 50% possibility this device was made in Ukraine. Near the Romanian border. But because of some funky legal restrictions, we can not add a "made in Ukraine" sign.
20 GHz refers to the sampling rate, not the waveform update rate. Waveform update rate is the speed at which samples are combined into waveforms and stored / displayed. Most oscilloscopes actually discard the majority of the samples they acquire because they lack the ability to convert all of those samples into waveforms. A loose analogy would be a very high resolution video camera that only captures / stores one frame a second
You know, for being such an insanely high end product from a reputable manufacturer, the build quality is pretty lackluster. Reminds me of a children’s toy with all the plastic bits. Perhaps I’m just too used to older stuff and haven’t seen more recent products?
You've trained me .... I can't call something "A thing of beauty!" without following with ... "A joy forever!" I'm going to have to launch a class-action suit :-)
You‘re absolutely right about the fan noise. If you have ever been the last person in the lab and switch off all the gear in the evening and everything is quiet, you notice how loud some test equipment is.
@@pauldenisowski I am a pcb designer myself but mostly for an academic research group and I always wondered how many people work on projects this bit and polishes. It's really impressive.
i got to build the PCBA, safety, performance and calibration testers for the production line for these units. some my job is building PCBA testing fixtures and platforms. and let me tell u, these where the biggest challenge jet to build. the amount of testing and level of performance of every detail is amazing. like all USB outs get a over-current event, the trigger time and recovery time are both tested and log'd. and ges who has a few of these pre-production models just floating around different work spaces. we do.
The OnlyFans comment made me actually giggle. Also, Noiseblocker. That's a name I haven't heard in a long time. Besides, kinda surprised to see a NB fan in an OEM product like that. Usually you have your Delta fans for that
"Dave nuts over an oscilloscope for 27 minutes" Wait holy shit they have a noiseblocker eloop fan? I had two of those on my PC, those are seriously expensive fans!!
Pornographic nuthin', that board is Playmate of the Year material! Just plain gorgeous. I gotta say though I was pretty surprised at the price tag. I was expecting more like $20k than $7-8k. Of course I'm sure those options will jam the price right through the ceiling but still, that level of capability for a price like that is a damn good deal.
@@tommihommi1 yeah, its already been 8 years ? it seem like it was last 2 years . I'm still rocking a 14nm desktop here , wait, that thing survived for 6 years already ? wow.
21:22 That might be why there are 6 memory chips, to store 12 bits, you divide the address space in 2 and store 12 bits in 6 chips. But I still think they're storing 12 bits in 4 chips by dividing the address space in 3, and the other two are double-parity, You don't want the data getting corrupted do you ? or one of them is parity and the other is ASIC configuration RAM.
I don't want to sound skeptical and this is a wonderful piece of technology to own, but isn't the world fastest like 110GHz (See Keysight UXR-series like this one: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-DXYje2B04xE.html )? And that's from 2018...
How can you call it the "World's fastest o-scope"?? The Keysight UXR is a 256Gsps 110GHz $1.2M monster. On what metric could this claim to be the fastest?
Hi Dave, Long time viewer. I really like your content. I observed that on your two videos for the R&S MX04 Oscilloscope it was two different serial numbers. Was the one on your first video a press sample(SN 200176-Cr) to be returned to R&S and the one on this second video is yours to keep/teardown(SN 200183-Bm - Show Room white tag on top)? Thanks!
Beauty.😍 I haven't seen the main review and was trying to do the BOM price in my head, but in all the excitment I kindo lost track of myself... Please can you do an update on the PSU, and what they're doing to that ground plane (I'm a little surprised they airn't using a cleaner internal one). If they're taking it straight from the wall they might as well pour vomit on the thing. As for the DRAM it looks as though they're them for input buffers and RAM, with some switching to cope with the bandwidth (RAID0). It would be interesting to know how they're storing the input data, I'm guessing storing 2 values in a single 3-byte pointer (that would help with bandwidth), otherwise they would be wasting a lot of nibbles (Gen-Z probably wondering wtf is a nibble?😅). Little surprised the DRAM doesn't get a little privacy with its own can as a lot of laptops sheild the DRAM, amd ECC is probably a luxury at such speeds. Also, I've never sceen those fans before. Noise Blocker is a fairly well known brand and PC enthusiates will pay a pretty penny for decent fans. I have 6x140mm cooling my CPU as I like silence (German too!)
Hi Dave, really great video, thank's for that. I have oportunity to buy R&S MX04 in base version with 200MHz (wo options) for EUR 4800, is that good deal and do you think that "patching" options in the future woulb be somehow possible ?
