Teardown of the new Siglent SDS2000X Plus $999 oscilloscope.
Can it be hacked to 500MHz?
Hires teardown photos: https://www.eevblog.com/2020/06/03/eevblog-1309-siglent-sds2000x-plus-scope-teardownhack/
Hacking thread: https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-hack/
Siglent SDS5000X review: https://www.youtube.com/watch?v=oxu19IFHMgc
Forum: https://www.eevblog.com/forum/blog/eevblog-1309-siglent-sds2000x-plus-oscilloscope-teardown/
#Oscilloscope #Siglent #Teardown
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Hi, it's test equipment teardown time again I Have had this one for a while, so sorry I haven't gotten around to it. Quite a few people have said that they want to see a teardown of this brand. Small, almost brand-spanking-new now siglent STS mm x plus series. It's the plus series not to be confused with the previous SDS mm X series which we've done a teardown of several years ago which I'll link in down below at the end if you haven't seen it.

And not to be confused with the SDS mm X - E series which is the smaller, cheaper to channel job II of the 2000 series. So I don't know why do they you infuse it all like this Anyway, So they currently got three scopes in the 2000 series. This is the new a big Daddy the 2000 X plus this one in particular is the SDS 23, 5, 4, X So this is the 350 megahertz model are 2 gig samples per second. four channels of course.

Although they do have a version in this series which goes up to 500 megahertz and that's one of the differentiators from the just the regular 2000 X-series and other differences from the 2000 X-series Uh, this one's actually got slightly less waveform update speed 120,000 waveform updates per second versus 144 the regular X-series So I'm not sure what the deal is there. It's probably to do with the extra memory they've got in this thing. This is a two hundred Meg's memory as opposed to I Think it's a hundred and twenty or something in the previous one and this one's got 500 micro volts per division. It's got a fifty megahertz function generator output instead of a 25 mega its function generator output, and it's got a much larger screen thousand and twenty four by 600 10.1 inch capacitive touchscreen as opposed to the 8 inch screen in the regular X series we've torn down before.

And yes, it is a mixed signal art. Scope looks like identical probes and everything else, a couple of USB ports on the front, all the bells and whistles, and yes, of course, with the bigger screen to keep the form factor, you know, relatively decent. They've had to go away from the four independent vertical channels to have the one combined vertical channel now, but that's the price you pay for having the big-screen scope. So this new X+ series starts at 999 Yankee bucks goes up to about 3 grand or so.

So yeah, it does actually look quite big and imposing with a 10.1 inch screen here. and on the back, you know you've got the usual culprits. Quite a large fan, so hopefully that's you know it's relatively a low-noise given the larger aperture case. It can move more volume of air for a slower speed.

We've got a pass/fail output, we've got external trigger we've got you know your land Ethernet and your USB And just in case you thought, you'd be getting a monochrome one these days, it's a digital color oscilloscope. Beauty so it's got a couple of pop-out feet here which tilt it. It's not too bad so it's not gonna fall over to go our stop stop your mongrel and we've got vents on the side or like that, it's kind of. you know, it's just my slim form factor.
one event for the power supply and another matching vent on the other side. So it's a pretty decent looking scope. although I really? I Still don't like siglent snobs on these things. They're just like silvery, plasticky things.

And the color schemes? It's just a bit. no, no, no amateur hour. There's no spit-and-polish in it, which they'd hire a proper industrial designer just to make it look a bit more professional. but you know it's pretty decent anyway for Channel jobs.

We do have the Times 10 detection ring around there, so auto probe detection. Unfortunately, no external supply for you know, active fit probes or any other external current probes. but it does have our 50 ohm input 5 volts RMS max. Oh yeah, that's decent, but you'd expect that on this class of scope.

So if you just compared it to like a similar size Rohde Schwarz r TB mm Here you can like see this. Sort of like just the spit-and-polish in that one. It's just like a nicer industrial design. gold-plated B and C is just a nicer color scheme and this one's just like dull and black but not that that matter.

I Mean, you know, ultimately doesn't matter, it's just. but. hopefully you can really see the art. Well, you can't see the matte screen on this one as opposed to the reflective one on the RTB to double a four.

It's just. yeah, it's not that great. Cygwin has a nice matte screen. good for video, so you know we say you're on the eevblog.

don't turn it on. Take it apart. Oh that's so satisfying. All right, let's lift the lid.

Are we gonna be metal canned? Yep. of course we are cable tied down that there. Nice attention to detail. The earth connection looks really good.

I Like that and nice heat-shrink Oh, that's not a heat shrink actually. that's um, one of those material fabric once and bundle that's just coming out of the power there. And do you need fan? For those playing along at home, it's an adder. Mm-hmm whatever.

and no. I Can't see any trademarks siglent rust either. It's rather disappointing. kind of.

Miss the old rust. All right. let's take all this off. Look, um, there's our washers and should just come off.

Should be, no worry. Oh, we're in like Flynn You know that. can we get those cans off? I Think we can. Beauty bloody hate sinks.

All right. So let's actually go to the videotape here because it's just going to be easier because I'm going to compare it with the original Mm X board. So on the bottom here: I've got the Mm X PCB and on the top I've got the new Mm X A+ so we can directly compare the differences here. sorry I didn't have a photo with the cans off here, but we'll look at the analog front ends separately later because that has changed.

So if we have a look at the old Mm X board, we've got our two IDC's down here sorry I couldn't get any of the heatsinks off there and they used our thermal adhesive glue on there. And unless I want to get the heat gun out and loosen those puppies up and try and get them off I'm not that keen and the details ultimately aren't that important. The new board could have like improved FPGAs or something like that. so whether or not they've done that, it kind of really doesn't matter.
We're just looking at the basic architecture here. So anyway, two ADCs I'm going to be assumed that the same ad sees because we do have the same a 2gig sample our per second and obviously one a DC shared between two channels. same thing happening down here and then the ADCs go into these two FPGA is here. and physically I think roughly they're the same size, but as I said, they could certainly be upgraded.

die if PJ's to handle more horsepower, but same waveform updates per second actually slightly less. but it's got deeper memory. so the memory that they're very in the sample memory that they've got here and here, it's actually going to be more on this one. It's going to have a lot more sample memory than it had previously, so you're gonna pay extra for that.

That's why I Sort of like the base model unit of this thing is like I think it's a hundred and fifty dollars more or something like that. So it's going to have upgraded hardware BOM cost for that so it wouldn't surprise me if they do have slightly upgraded. FPGA is because it's been like almost four years I think since they released the 2000 X down here, so made significant improvements since then. So yeah, wouldn't surprise me to find a new FPGA under the hood there.

Yes, even if I take off these latches that hold it down here, it's still thermal adhesive glue which is really annoying. anyway. so all that's pretty much the same front end wise. So this is where the physical layout actually starts to differ on the old design.

We had our display processor FPGA under here and you can tell there's the ribbon cable there going off to the LCD. The new one actually uses like old-school cable up there. So yeah, that's interesting. haven't actually taken the board physically off yet, but yeah, that's they went from a ribbon cable back to old-school because they've entirely changed to display on this thing.

so it's a 10.1 inch. It's higher resolution there more mapping so it wouldn't surprise me if this FPGA is greatly enhanced over this one here. So yeah, they've physically moved it from here over to here, so this has to get from here all the way over to there. So yeah, that's a significant difference.

anyway. so I assume that this is an upgraded FPGA to the one used over here because it's higher resolution and everything else. So now on the old one, here is our applications process. So that was a analog devices.

Well, we can go right in there. that's an analog devices. Our A DFP is one of those our Blackfin jobbies and we don't actually have that up here. Well, it's A we can't see it anyway, so they could have I change that completely to something else they could be running.
and even as I links zinc or something under there, perhaps I Just don't know. Anyway, they've got a lattice semiconductor. Is that a CP or D or an FPGA. It's interesting that almost certainly these ones under here won't be ladder.

So I think they might have actually mixed them. Anyway, the same lattice was used down here, of course. What that's for is here's our logic analyzer input connector down in here. and here's our latches and level.

You know there's got to be like a trigger level conversion and you know comparators and trigger stuff and things like that. So all of that there is our logic analyzer part and if we go up here, it's basically the same thing except there's another job' in here right next to it which is I. Can only assume that that's the applications processor and they've moved it down there. But anyway, this is it actually the same part? The O-64 Oh the O-64 Oh yeah, it's exactly the same.

So I don't think the aspects of increased I think is still 500 big samples per second. Oh, it is a CPL d There you go. It tells you it's not an FPGA. So anyway, that's like they probably haven't changed anything in there unless they've like tweaked it, made a few improvements or something like that.

So this one here is still the applications. A processor I would be guessing because this is still going to be the display process FPGA unless they've liked, change the architecture and it's combined as I said like as Islands ink which has a combined FPGA and applications processor in it like an ARM processor in it. Then yeah, yeah, hard to tell unless you actually get the heatsink off and the numbers off which I'm not keen to do at the moment, but they've basically got the same number of same major components here sample FPGA and ADC display and a FPGA sample and ADC and display FPGA Applications process our Applications Processor and logic Analyzer logic analyzer. So apart from that, it's pretty much the same.

Then we've got our function generator stuff down here. now that actually actually has changed because it's now 50 make samples are per second and you can go in there and look at individual part numbers are high res photos over on LinkedIn on my Flickr account and over on our Eevblog Camels that Arbor Brown Anyway, yeah, so that's changed down here. We've got five of five relays NEC Jobbies five relays here they're switched from NEC Have they any C's anymore still made in Japan All the best stuffs made in Japan Anyway, 50 Meg arbitrary waveform generator and then we've got just got all the power supply for all the different rails and all these pesky FPGA is require things like that. so that's yeah, that's similar on both of them.
that's going to be our PLL in there for our logic analyzer. I Think it's going to be surely it's identical down here. No, no different job' down there. I Think that looks different.

Anyway, there's our Ethernet as an interesting little dull semi conductor, a squared prom. Look at that. they're storing something in there. Hmm I Wonder what good thing about this? JTAG Headers: There's one in there.

They're already populated, just whack on your JTAG on Aaron huh? called no, that one's not sorry, that's I Square CSC LSTA and digital VDD enable. Well, that's interesting. I that that controls what is that just is that just for setting up, that's a power supply. So I don't know why they've got that in there next to the like.

you know it's layout implies that it has something to do the power supply. Check the data sheet for that. you can see more headers up here. That's another je t'ai job there, that's they don't have it, but that is probably the boot serial interface.

So yeah, might probe that later and have a look to see if we can't get the boot information. Did we do them on previous one? Not sure. Anyway, it looks like another JTAG over here. so they've got no shortage of headers to access to hack this thing.

Nice. and sure enough, just went look to the data sheet for the TPS 65 or 400 Here it's it's on its side so half the electrons are gonna fall out. and yes, it does have a Sm bus some slash I squared C interface to control it. It's a multi-channel you know, power Management controller and it looks like yeah, they they do actually set that up.

there's a reef. They wouldn't populate that unless they actually you know program this thing factory programmed it to do what they want. So now that 83, eight, four nine there, that's a National Semiconductor. Earth Phi Why it's physically here and here's your Ethernet so ver here.

I Don't don't get it. seems like poor placement. soldering is a bit. how you doing there.

A couple of solder balls in there, not sure. Is that like all the Visa tinted. So I it's not a pad? uh-huh Anyway, they look like USB Jobbies used to know why they left that cap off. There looks like they got three caps in parallel and they just left one off.

Really expensive. So yeah, generally the layout of this lake seems a bit bit over the place. I mean you know and this has to get over to here like this. these USB ones have to get over to the Usb over here.

where else is there? The other USB Zarab down the bottom of the board here on the front panel seems all over the place. But anyway, but now I'm thinking that these USB drivers here that's going into this which I assumed was the display process of why the USBs would connect to that I don't know. So as I said it, that could be a combined I Think they've changed the architecture a bit perhaps so that then leaves. well, what is this one? If this is a combined applications and display like as I'll example something like that perhaps then what is this puppy doing? Hmm, okay, so have a look at the analog front-end Significant differences here.
I've got the old 2000 X on the bottom, although I still believe it's a current model I Don't know what the deal is I kind of. I I Think they're physically like the same size case except one has the bigger screen. Maybe they want to keep both because some people prefer having the four separate channels on it like physical knobs on there and the smaller screen. And maybe like a hundred and fifty bucks less or something.

but I don't know I Don't know why you just wouldn't consult out with new design. Anyway, the first difference is that the old design has four relays once again. NEC Jobbies they've changed to I don't know what? so F T is that like like Fujitsu or something? Anyway, made in Japan All this stuff's made in Japan and the old one has tremor compensation caps whereas the new one. Where's-where's Wally I'm not seeing it, not seeing it.

Oh, by the way, I'm dead. No. I missed. They have a A Cosmo electronic relay down here and they don't have an equivalent one up here unless that now.

I Don't know. Don't think that is. No, it's not. So yeah, significant differences there.

and then you or one has a much beefier look in its 24.9 I am. So is there another one on the flip side of the board? I Can only assume there is. Anyway, the new design. This is a 500 megahertz front end.

You buy it as you can't buy the 3 500 megahertz model. You buy the 350 megahertz model and then you get the software upgrade which changes it to 500 megahertz. So presumably there's like a ver actor or something in here somewhere which simply changes the software-defined bandwidth in this thing. Where is the old one? This was 300 megahertz maximum, so you couldn't go any higher than that.

So you want? yeah, 500 Megahertz Layout: 350. So yeah, it looks it looks significantly more refined. Look at this divider network they got down here. so I got the old Stalwart, the HC 595 one of my favorite TTL Chips Of course that's just a serial to parallel I expand this up and drive all the control pins going to the various chips and probably one of those lines like controls the filter element or something like that.

So anyway, um, here's our output driver. You can tell by it by the symmetry here. look at the nice symmetry that's a differential output driver and that Beautiful. It's a 65 1/8 and the old one is a Analog Devices 63 70s so that looks like is that our differential output driver there? So that would be an analog.

Our front-end literally sort of like the residue on there and stuff. Anyway, Alright, so this is what they had previously: the 8080 370 our low frequency to 750 megahertz digitally controlled VGA That's not video graphics adapter, that's variable gain amplifier and this is what you find in. you know it's got the adjustable gain preamp, it's got the adjustable output amp and I think it even that probably has the ability. like the inbuilt are filters as well, so that then that's how they software the gain on the things I believe.
Anyway, they've changed that over to the L Mh-65 1:8 which is a fast and 900 megahertz digitally Cattrall ver a prayer that program will gain amplifier and I wonder if they have and look. And of course specifically it has Scylla Scope programmable gain amplifiers differential ADC drivers because that's exactly what we're doing. So yeah, they know their target market and Bingo bandwidth limiting circuitry so that would not surprise me if they're just you have to just have a little twiddle. It's good to have a little twiddle of the pins here and you might be able to change the bandwidth limit on this thing, possibly from 350 to 500 megahertz.

They have selectable bandwidth limiting surgery come to both main and auxiliary 20 and so that's how they're doing the 20 megahertz band with them at even the best scopes. These days all have 20 megahertz bandwidth limits because that's a common frequency used for back in the old days, it was just a de facto standard that you use for power supply, noise measurement band. Words: for example: that's where all scopes live. Like a 20 megahertz bandwidth limit.

Anyway, So Bingo, 2100, 200, and 350. That's why this scope has a 350 megahertz bandwidth limit. It's because like it's in, the next one is 650. It's not like it has 500.

It's basically they designed this front end for 500 megahertz bandwidth minus 3db. Of course it'll go beyond that. So they obviously for the full 500 mega limit, they disable the light, they disable the bandwidth limiting completely, and yeah, but fill the 350 megahertz model so that's all it is. So that's what you're paying your while.

1100 bucks for is for the fact that they just flip a little bit inside the register here and it just changes the bandwidth. So obviously what you could do is you could play piggy in the middle here. For example, when you can die, twiddle these here Tweedledee Tweedledum and you've got your bandwidth limiting circuitry disabled and that looks like it just directly. It drives the 80s see differentially.

Of course, you know you don't have single-ended this sort of frequency run to cross boards. The rest of it doesn't really matter. but anyway, um, yeah, that's a 500 megahertz front end. old 300 megahertz front end, so significantly enhanced for a base cost of really of an extra hundred and fifty bucks.

So it would be interesting to know if anyone's got a tear down of the lower models, whether or not they actually have the same front end, or whether and what you have to actually buy the 350 megahertz model to actually be able to get that. Yeah, you know, if this is in the 999 dollar model, then that's potentially pretty good. You could hack it up to 500 Meg but I wouldn't count on that. So yeah, please leave it in the comments down below if you'd know of links to anyone who's torn down a lesser the lower bandwidth model because it could specifically to be different because they do not sell an option that lets you upgrade a software option that lets you upgrade from a hundred megahertz to five hundred megahertz, for example.
They don't offer that, and why wouldn't they if it was the same hardware? So you know it wouldn't surprise me at all if the hardware is significantly different to what you see here in the lower end models. Maybe they actually even reuse this down here. Perhaps. Alright, let's boot this sucker and see if we can get some of the serial terminal information out of this.

So I've got a hooked up to a USB our serial interface 115,000 board. you know the usual eight in one and let's see. So I'm going to turn on the soft power button so yeah, I've got it connected up I haven't sold it in that header I've just got it sitting in there so you know the contacts a bit how you're doing, but she'll be right. So let's go.

Bingo, we're in like Flynn Start Menu V Dmae config. Whoa. Well, we've got a whole dump of information with the timestamp next to it Wow Down to the microsecond the timestamp as we've got six decimal places initializing VNC I Got no idea what half this stuff is. You know all the reverse-engineer aficionados out there.

Product type: STS to double O 4 X plus yep MSO Done Value plus plus scoped ID That's interesting, that's all. zeroes. Not sure the deal is there. and we've got a couple of fleshy flashes 1, 2, 3, 4 so it looks like that one's probably the logic analyzer.

Flashy, flashy. That ones looks like it's the heartbeat for the processor or another one up there. Sorry, that looks like it's a heartbeat for the world dead. sorry, that could be the processor up there I mean Anyway, another heartbeat and heartbeat for the 80 like sampling engine.

And they led for the second sampling engine there. So a whole bunch of stuff I will dump. Oh, there's a lot of blank at the start of that. so I'll dump this as a text file on the Eevblog form and people.

Yep, there it is. Xylene. Zink There it is. So yep, they've switched over to the zhiling Zink ECC Disabled 256 mega RAM A bad: CRC What? These didn't bother enable in it or it's actually wrong.

Flattened device tree, blob, Whatever. that is. No idea. There you go, it's running Linux 3.19 Linux Kernel uncompressed so all you Linux fanboys out there can start hacking away booting Linux There we go.

That's a zero time booting Linux on physical CPU Zero 3.1 9.00 1 blah blah blah V7 processor that's inside the Zinc. Of course the zing keys are combined. If you don't know, the Cylons Inc is a combined Fpga with a Arm7 core in it as well as hard silicon not as part of the Fpga February and that's what makes it so terrific. For Fpga is like this.
That's it. You know it's relatively expensive chip but like it does everything. it's gotten processor that you can run Linux on and it's also got all the FPGA stuff. We can do all the fast parallel you know, display stuff that you need for an FPGA You know the fast updating and everything else.

Yeah, I really don't know what I'm looking at. so I'll dump it on the eevblog for him. Go go for your life. But there's tons of stuff and yeah, here's the this is like the boot time.

This is a microsecond timer, so it goes down to one microsecond here. It's how long it takes to execute each of those instructions or each other to each of those tasks. and I'm sure it's trivial to like. You know, load like custom boot images and all sorts of other stuff.

I'm sure people will figure that out. It's doing some calibration there. Looks like it's testing the acquisition engine the first and second acquisition engine because remember there's two acquisition FPGA is in their product type STS to double F or no lease failing? No idea. I'm interested know what the scope ID is.

It's got zero, zero, zero all up there. but then it's got an ID here and then another scope ID here. Product: ID I mean like is it as simple as changing like a product ID To make it, go to the 500 Meg version and then the code just takes care of it. Or something like that? perhaps.

Um, wouldn't surprise me if it's that easy. but you know. I Murphy Arbitrary waveform generator is okay. That's calibration data.

It's doing skew. Why is it only Channel 3 skew? Why isn't it doing all the channels and it's using Siglent Dev I Guess that's their development environment or something. Is it nice? Knocked over 6 2007. It's pretty ancient Wow So there you go.

That's it. that's well. I'm sure there's lots of juicy stuff in there. As I said.

I'll leave the text file on the Eevblog forum. Actually, no surprises for finding it. looks like Mr. Miyagi has.

yeah, there's a hack for this thing. So yeah, I won't show you what's in the links and things like that. I'm you can go check it out for yourself, but yeah, there's stuff there. and in case you're interested, Heatsinks with no fan Oh Ernie Bernie I Can't keep my hand on that Yep, so Abc's yo Yep.

Ernie Bernie's yep Yep. I can't Oh wow yeah, they all run very hot I can't I cannot keep my hand on any of those. So they're over like 55 degrees. They're probably 60 degrees or more, but of course they wouldn't run that hot when you have the fan running continuously.

I'm in it because you'd get airflow over them and they're much more efficient. Heat sinks aren't very efficient without airflow. I Forgot to press record I Just start switched it off and you can see that here. All it did was just unmount the volume there.
so let me switch it back on. And there we go. It just boots straight back up. Dude, all that here.

All the relays click. It's very satisfying to hear the relays click when it turns on. can't read it? you up? Maybe you can. feeding data.

It's uh. yep. There we go. should be booted now.

should be working. And here's our power supply and check this out. Somebody had fun with the silastic. fantastic.

Loved a little heat seat down there. little itty-bitty one. Nice isolation slot down there there. It looks like it has all the requisite stuff.

Big-ass common mode choke. There's the Diode bridge. I See, yeah, look at all the isolation slots. Yeah, that's that's.

just really nice looks. Yeah, it's all about the vibe. just the vibe of the thing. It's just the vibe of it.

No, that's it. It's the vibe. I Rest my case and the vibe is good on this one. It's a Sam Young You know, not the worst.

Certainly not the best. But anyway, what do we got? Looks like there Sam Young's on the output as well. So yeah, or at least if kept to the one manufacturer you know they haven't like. Looks like they haven't just gotten whatever they could at the Shenzhen market that week.

So yeah. nice big isolation slot under the transformer there as well within the optocoupler, so this small attention is a detour. Even isolation slots around the nuts there. That's fantastic.

Better protect your nuts. Okay, something is a very strange here. I've got of course the 350 megahertz model and if I go into utility so I thought I'd check if I had the 500 megahertz bandwidth option that says remaining times optional. so I'm not sure what the deal is there anyway I believe that that oh five, there would be the 500 megahertz option.

and yes, I do have the ability to hack this thing so that's what I want to try anyway. what I tried to do is like feed in a like 5 or 350 megahertz 500 megahertz signal and I was getting like nothing like almost nothing at 500 megahertz. So I've actually got it down I've actually generating a 100 megahertz signal at the moment and I'm getting I'm basically minus 3 dB you know, 0.707 roughly for the hundred megahertz, so it's almost as if this thing only has a hundred megahertz bandwidth. and no.

I And yes, I do have the full bandwidth option on and you know 200 megahertz. And of course if we go to 20 it it drops down and I've got the full bandwidth on. It's almost as if this is only the hundred megahertz model. Um, it's it's just nuts.

If I go to 200 megahertz, there it is 200 mega and it's dropped to now fall and fall. And if I go to 500 megahertz, it's just it's dropped off a cliff because if I go over to my 500 me key site over here, there you go. 500 megahertz? Um yeah, it's over 0.06 Oh, it's basically this thing has greater than 500 megahertz bandwidth. but if I take the exact same signal walking into here, yes it is.
but they're both that 50 ohm terminated I get absolute lutely nothing unless I you know I basically have to go down to 100 megahertz to get my 3 DB bandwidth. So I I think I've been diddled and yes, I've tried the other channels. By the way, here's channel 2 and channel 3. This is at 350 megahertz.

So anyway, so what I'm gonna do now is have a little bit of a fiddle and see if I can get higher bandwidth. Winner Winner chicken dinner. Hang on. It didn't instantly give me the more bandwidth.

so I tried repairing and it's now actually vanished. Where is the bandwidth option gone? I'm not sure if that's normal or not. So yeah I don't know what happened there I Have installed a license for the 500 megahertz version and this is I'm only getting like a hundred megahertz. Let me put it back.

200 megahertz? Here it is There you go And yeah, point 707, it's only 100 and a little bit more. a little bit more than 100 megahertz bandwidth. and I still got the Ogor full bandwidth limit on turn 20 mega. Of course 200 won't make any difference and having full on I makes a little bit of smidgen of difference there.

but still, it's go up to 500 Meg and not flatline now. Apparently it's uh, supposed to now I Checked on the forum and apparently it is supposed to actually remove that option once you enter it and sure enough we go into the info screen. it's uh, changed it to the SDS 2500 4 X plus and of course we have a 23 54 X cuz it's their 350 megahertz. So 2 5 is 500 megahertz so that's there.

but um, the waveform? mmm so I thought I'd have a go updating the firmware. we'll see what happens now. Note that simply doesn't work. We've got 750 millivolts here and like 50 ohm input.

Of course you know we can change it to 1 Meg but it's supposed to have 50 Ohms are supposed to be 1 volt aramis. Ah I come a gutter. Well I'm dumb I was just looking around and I noticed down here it had down in the time base ten bits So I thought I'd go in there and you know have a look. Well we're feeding in our 100 megahertz signal 750 millivolts.

Let's go to 8 bits. Ah, 1 volt. So the problem here is is that you saw it before it only had on 10 bits. It's only got like I'm sure it was showing 50 points before I maybe I was over a time.

Base There you go. 40 points 20 points. There's not many points in there. So anyway, we're coming to Gutter with our box book our average infielder there so we have to turn up at 8 bits.

All right, let me go now. let's go 200 minutes. Don't I feel really dumb there. It is 200 minutes.

Let's go up to 500 meters. Let's see if we actually get now 500 big bandwidth and 500 Meg There it is. It's actually higher than 500 BEC 850 odd millivolts I Around a bit like you know, 0.707 minus 3db we're up at 590 Meg There you go. So I'm Yep.
I Was able to successfully hack this thing and it's really quite easy. I'm not going to tell you how it's over on the Eevblog form if you want to do it and you can get possibly get although I already had the options you know, the function generator, the MSO, the Flex ray and the can and all that all your trickery goodness. And let's just check the key side. over here.

this is 500 megahertz. There it is. and let's turn it on our high resolution mode which is equivalent to the siglent 10 bit mode of course with the Boxcar averaging and you don't get the same. It digitized the problem as you get on the siglent so that warrants some more investigation.

I Want to do that now? but that's that's interesting. Hmm. the arbitrary waveform generator great that is built-in instead of having like the external thing which are they're provided for other scopes and it's 50 megahertz as opposed to why 25 bit. You know it, it is fairly rudimentary.

I'm Unfortunately, the different wave types yeah, okay, we've got, you know, sine square ramped pulse noise DC a relay clicks inside when you go to DC by the way, it's got up as well, which is great. but the Sian like yeah, it's got no modulation capability at all, so it's just you know. it really would have been nice if it had that modulation cable I don't think you can do that in your arm type. it's just I think it's just got the different yeah, you got the maths ones, the engine windows, tree, trig functions and all that sort of stuff.

and you can store there you know upload USB ones and you know things like that and probably via the LAN as well and stuff with a beard like a modulation capability. Pretty disappointing. I was gonna use it to generate my standard waveform I Like gonna have to use the keysight. One thing that's really silly on this is the universal wire select control.

Here it changes the intensity of your display, but there's nowhere on the display unless I'm absolutely blind. that shows me the intensity level at all. I Mean that's just silly why? Anyway, this might be a full review video because well, there could be an error in its own right. I've already looked at the new like interface Siglent which is identical to this in terms of like the drop down menu display in the touchscreen interface and the zone triggering and all sorts of other stuff in the Siglent 5 SDS 5000 series Review: That's a one gig scope.

Really high-end but this one is going to work exactly the same. Obviously it's the same underlying operating system, user interface and all that sort of jazz. It's just that the hardware is physically a bit more capable on the higher-end one. but yeah, like it's really an incredibly powerful scope.

You gotta remember, this is like a 900 and this starts at $999 shorts for the hundred megahertz version, but as you saw I was able to easily upgrade this thing and I won't tell you exactly how. If you want to know it's over on the Eevblog form, the information is readily available. So 995 bucks and you know you get a lot of a ton of incredibly powerful stuff. and they have added bode plot in here as well for the thing.
and of course with the function gen going up to 50 Meg that's like really handy that's higher than like the 20-25 Meg typically found on other scopes, that's really quite nice. How do I get out of the controller bode response plot off I guess yeah off and it's also got power analysis there and you can do power quality switching lost slew rate might have to actually do a video on that one day. Get a good example to hook up I Believe Sickle and actually have like a proper demo board for this that allows you to actually look at all the different types. So if you want me to actually look at them, maybe Ping Siglent and get them to send a boarding and something and then we can do that like it's just nice if you already have like a nice harbor example that you can probe easily and you know do all that sort of stuff and like all that sort of jazz but that is an optional extra of course and it's got of court.

Well no mass testing. It's got a serial decoding as well and look, this is not a review of course, but it's got a square see Spi uart can Lin Flex Ray can Ft I to s building hardware frequency counter but it's already showing it up there so I don't know why they actually have another counter over here. I'm not entirely sure. but anyway, it's pretty powerful.

The trigger Of course they've got the zone triggering if I remember rightly. I had some issues with that on the 5000 series, so zone one on can we? Yep, go like that and you can trigger within. the zone must intersect like that. and bingo.

It's going to trigger on little runt pulses and things like that. But I think there were issues with it on 5,000 maybe. but that was like a year ago. Maybe they've solve those on the 5000 and that add any things they solve on one.

It's probably going to flow down to the models that use the same OS It's just an incredibly modern and powerful scope and probably one of the best. bangs. Papaki again, under a thousand bucks, although I've yet to do that if you want. Actually give me a thumbs up in the video and also leave it in the comments down below.

If you want to see like a thousand dollar scope shootout I can do that like on paper, like a spreadsheet shootout. It's really hard to get physically all these. you know, five or six different scopes and then do a big video. but you remember how I did the one gigahertz scope spreadsheet shootout if you'd like to see the same one for say, like a thousand dollar price point with what's the best you know and most hackable.

best bang per buck under a thousand bucks or something you know, arbitrary limit like that. price is always a good arbitrary limit. So anyway, if you want to see that, let us know. But yeah, it's um, it's a well-built unit, incredibly powerful.
I've used it a little bit off and on and it is a quite nice. It's fast and responsive and it's you know it really is quite nice. uh, scope. but as I saw in the 5000 I think if I start using it more they'll probably be a few little lock works and and things like that.

But fixing this siglent like the firmware I just uploaded was just like released like ten days ago or something. They're really fixing issues and solving things and update and grading firmware and adding new options like the bode plot test and things like that. So yeah, good stuff from Sigma's fantastic to see incredible value and unfortunately, well, unfortunately in quote marks. um, because it's still incredible value for money.

The nine hundred ninety nine dollar unit is only a physical to channel unit and I believe you physically only get the two channels inner is $13.99 and this is like just the retail price on there. A website might be able to get it better on the street price for the base model for channel a unit, but even that G's pretty darn good value. Let me tell you, one of the cool things is that it's got the land interface. You can do just an automatic DHCP connected to your network and then you got phone access.

No worries, look at that. obviously not the thing on the phone, but there it is. it's connected. Got to have Skippy commands now Instrument control.

So there it is. We've got our screen so this would be much better on an iPad And can we actually There we go. We can zone trigger. You can see that that is actually live updating on there.

That's really cool. Good stuff from Cygwin. It's fantastic to see incredible value like and you can hack it - Wow Great being per buck. Anyway, if you liked the video, please give it a big thumbs up.

As always, discuss down below and if you want me to test something a specific on this thing I can certainly do that. I'll take a request and I can just whack a quick five-minute video over on my Eevblog 2 channel. That's what the Eevblog 2 channels for. No spit-and-polish just turn the camera on.

Yep, away. Test Sutton and Upload. Catch you next time.

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By YTB

24 thoughts on “Eevblog #1309 – siglent sds2000x plus scope teardown hack”
  1. Avataaar/Circle Created with python_avatars Light Science says:

    1000 bucks? But this is a 3000 dollar scope. Am I missing something?

  2. Avataaar/Circle Created with python_avatars Ernest B. says:

    Great scope with quite of a potential. Low noise, sensitive, decent sample rate, responsive UI, decent and mature UI and a lot of options (hopefully the LA-input-unit can be a DIY project ๐Ÿ™‚). It is far from cheap (and at this point I am considering the much cheaper 1104x-e, as it could be just enough for the "home use"….. ), Not cheap, but we can not expect that from a unit like this. For the most serious EE it is still affordable I suppose. Some keep buying yet another cheap(er) unit, but I rather/maybe invest some more right away and buy something like this. Tough decision.

  3. Avataaar/Circle Created with python_avatars Kenni Boesen says:

    Know this is an old video. But i am really in for the Powe Analysis. Especially the PSRR function. I can not find any videoes, where people test this function on the Siglent.

    Thank you for your videoes, the learned me a lot.

    Kind Regards

  4. Avataaar/Circle Created with python_avatars Joshua Cox says:

    I wish i had a scope ๐Ÿ™ i can't afford one

  5. Avataaar/Circle Created with python_avatars Mariusz Kwasniewski says:

    I think that all of these designers have severe case of depression. Black color would be much better.

  6. Avataaar/Circle Created with python_avatars Manuel Malagon says:

    How does this scope compares with the Rigol MSO5000 series? I'm kinda divided between the two and I can't really tell which one is better.

    Has anyone compare them? I'd really appreciate that information!!

  7. Avataaar/Circle Created with python_avatars Carlos GS says:

    Great review, as usual. One question, I'm ready to upgrade from my hantek, and I'm considering between the SDS2000X Plus and the Rigol5000. Which one would you recomend? thanks

  8. Avataaar/Circle Created with python_avatars q zorn says:

    ok ok very nice scope… on which projects do you use the higher end scopes and when are Flukes, etc. really needed? because my Siglent 4ch 100m does lots on the hobby level. ๐Ÿฅณ๐Ÿฅฐ

  9. Avataaar/Circle Created with python_avatars Cordyceps Triffidus says:

    My scope budget was about AUD$600 – SDS1202X-E – it seems fine to me but then I never owned a scope before so I am wowed by 200 MHz. Thanks for a great channel.

  10. Avataaar/Circle Created with python_avatars x_Digger_x says:

    500MHz only on 2C lol

  11. Avataaar/Circle Created with python_avatars Graham Wideman says:

    Was this SDS2354X-Plus really $999 in June 2020? Because it appears to be $2999 now.

  12. Avataaar/Circle Created with python_avatars Mick says:

    Hi Dave , where is the best place to purchase the Siglent scopes at a fair price ?

  13. Avataaar/Circle Created with python_avatars Arfer says:

    Hmmmm, I think we are getting robbed in the UK, these are over ยฃ2000, which is odd because 1000 aussie$ is about ยฃ540, seems like for some reason we are expected to pay four times as much, hence I will not be buying one. Serves Siglent right that people have worked out how to hack the cheaper units to avoid paying top price.

  14. Avataaar/Circle Created with python_avatars DAVID GREGORY KERR says:

    I thought they would use DSP processing for the Bandwidth limiting.

  15. Avataaar/Circle Created with python_avatars Michael K. says:

    You really compare a 15.000 Euro Scope to a 2000 Euro Scope? What a pile of nonsense.

  16. Avataaar/Circle Created with python_avatars Artomix says:

    Weird how no one ever complains about looks when it's a keysight/tek/ anything else. Seems like all the major companies have some pretty ugly designs for their scopes, siglent is no different.

  17. Avataaar/Circle Created with python_avatars TIMELTD ME says:

    so how does this scope compare to RTB2000? looks really similar, especially interested in triggering and logic analysis details

  18. Avataaar/Circle Created with python_avatars Naresh Aiyer says:

    include spectrum analyzer function ?

  19. Avataaar/Circle Created with python_avatars Allister Denyer says:

    I cannot see in the blog how to actually do the hack. where do I go? I have just purchased a Siglant 2204+

  20. Avataaar/Circle Created with python_avatars Jimi Hindrix says:

    Excellent vidรฉo. I have SDS2104X plus. Is it possible to increase the bandwidth? If yes, do you know how? Best regards.

  21. Avataaar/Circle Created with python_avatars John Thimakis says:

    I'm definitely not buying it.
    It won't tell me what the screen brightness level is. Lol.
    Are you sure you aint a Kiwi Dave?

  22. Avataaar/Circle Created with python_avatars John USP says:

    The SDS2104X Plus can be upgraded to this SDS2354X Plus?

  23. Avataaar/Circle Created with python_avatars ๆญŒ่ˆžๅ–œ says:

    SDS2354X Plus has excellent cost performance!

    We can buy it for about 1/3 the price of TL's T3D SO2354A. (^^)

  24. Avataaar/Circle Created with python_avatars EEVblog says:

    Someone on the EEVblog forum has posted internal photo of the 100MHz unit and the front end looks identical. So it seems to 100MHz model can be hacked to a genuine 500MHz!

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