Hi! it's another oscilloscope tear now and very exciting. We love scoped here. downs here on the Eevblog. This is new Siglent SDS 2000 X-series scope and I have had my hands on this puppy hour before.

Click here to see a video with the siglent CEO who actually was kind enough to visit the lab here and I had a brief play with it for like 10 minutes and then they took it back from me. Oh Anyway, I only just recently got one back in care of Cheol's at Trio Test and Measure here in Sydney so thank you very much. Charles So I'll try not to break it on you anyway and I will try and refrain from actually turning this on. it'll just be a teardown.

Let's go. and I've also previously torn down the new 1000 X-series so click here if you haven't seen that one. So this one should be a fair bit different. This is 300 megahertz analog bandwidth 2 gig samples per second.

The other one was 1000. X was only one gig sample per second. So I'll expect to find a different ad seen here. Perhaps this is a 4-channel the other one was only 2 channel.

but just a brief overview. It goes from 70 megahertz up to 300 megahertz. The Models: The 70 Megahertz model starts at twelve hundred and eighty five will they're about site US Dollars goes up to 2800 for the three hundred megahertz version and I'm pretty sure the hardware is exactly the same. The even the 70 megahertz model most likely has the 300 megahertz front end and they just software limit in that I Don't believe there's a software upgrade option.

You have to actually buy the particular model but I stand to be corrected on that mixed signal art scope. We've got a 25 megahertz ARB gen as well all the bells and whistles. It's got up to 140 Meg point of memory that halves if you use a couple of channels but 140 mega memory. Amazing what these scopes I got these days.

Pretty darn quick. 140,000 waveform updates per second and 256 color intensity graded display. So very nice bit of kit starting from my 1200 bucks. Incredible value and on the back not a huge amount doing but we do have building land and standard USB device pass/fail output and external trigger as well which is terrific because you can with the external trigger.

you don't have to sacrifice one ear analog channel so it's true for channels plus external trigger. Brilliant and just as a size comparison. I'm gonna put it next to the tiny little two channel Rohde & Schwarz HMO 1200 series here and it's oh, it's a it's a pretty big scope and but of course it's out for channels of course and it's pretty thin as well. It doesn't take up much bench space nice and all the knobs are possible on it so you can do Center and all that sort of art Jazz very nice I Got to admit I don't like the look and feel of these knobs.

they're just I don't know what they were trying to go for and the color scheme is all a bit bland and it's just well. I Don't know a personal taste but yeah it's just mmm. Leaves a bit to be desired, but hey, that's nothing as long as it works and gives good value so you care about. And they do have the probe detection.

You can see the ground and point around there. so they're supplied with that switchable probes. so auto detect. Seriously, it's just one big solid ring.

Usually you know it's like a half ring or has multiple ring see, but you know it does not have any external power or anything like that so you can't power active probes like you can on some of the higher end professional scopes, but otherwise it actually feels you know. reasonable quality for the price. Not the best feel made unit, but yeah, not bad incuriously. There's actually screws spread right across the back of this.

There's four here. I'm going to have to. Looks like we're gonna have to take these off down here. They're all that talks.

maybe a couple on the top. That's because it's so large. Usually only get like two down here and two up the top on most scopes these days. But anyway, let's take it apart and see what's inside.

Lots of FPGA goodness I'm sure cuz that's how they're going to be getting the 140,000 waveform updates per second of course. so there's going to be lots of grunt. the be to IDC's in here because I believe at Harvest and could be cool. Believe the sample rate halves when you put on the dual channel, so that indicates that they're sharing an ADC so which is of course, very common in most scopes and it should be a different ADC - as I said - what we saw in the 1000s because it's a higher sample rate I Don't think they would like double the number of ADCs and then interleave them I Think they would just use a yurt - example per second converter, but hey, I stand to be corrected on this thing and we expect to see some yep, shielded metal power supply separately shielded.

Looks like we're gonna have one hung low brand and at our brand fan on there. Geez, wouldn't trust that any further than I could throw it. And in case you are wondering, yes, the fan is a bit annoyingly loud and seems to have like a like you can hear the bearings like they're not good quality bearings. It's just a real cheap-ass fan.

Yeah, disappointed. but hey, there's a bit of attention to detail. They've cable tie down the cable for the fan there and I like the mains here, the mains input up on its own bracket. There heat-shrink properly.

The proper mains. Earth down here, we've got that ones. Is that crimped or sold it Anyway, it's heat shrunk over there. looks like does it have a sheet.

It has a shake proof washer on it. Very nice. and this is the cable coming out if the power supply direct down straight onto the board. So nicely shielded and nice and neat and tidy.

Thumbs up. And there's no sign of the trademarks Sieglin Trust yet can't see it. So yep, they're doing well and the power supplies are neat and tidy enough. They've got Suss elastic holding down the caps, they've got a thermistor.

they've got a Marv They've got the common mode show could I Look sir, it all looks just fine. They've got the isolation slots and everything's hunky-dory They've got the earthing strap on and it's alright except I Can hear the groans from here for the Lille on main filter cap. Hmm, that's a bit of a shame because the others a Rubicon They're a pretty decent brand so no worries there at all. You've got to wonder if the little heatsink glued on the top of half the surface mount packages and afterthought or not, it's like, well, we couldn't quite get the heatsink and performance out of our PCB there.

a few little piddly vias down the side there and there, but yeah, like they just had to stick it on the top. Nothing wrong with that. Hey whatever works, is not. some bolts look a bit, how are you doing? It's like is that like them had like been super glued on or something.

huh? Anyway, I do like the isolation slots between the pins. they're nice touch. Got the RFI shield in tabs nicely on the Ethernet and the USB connector there. Yeah someone knows what they're doing.

You gotta love the pop rivets. Look at this. you can just picture the production work is there with their pop rivet gun. you know go in, cook, long, cook, clunk, tell you what someone was thinking.

At the system engineering level they've made a cut out in the showi here to access the RTC battery. They're very nice and it's small things like that that show you that somebody had a hand in the overall system designer this thing that's not like they just somebody did the schematic, threw it over to the PCB person, they're just laying it out and they put the battery willy-nilly No somebody had to. you know. Go right.

We want access to this battery without having to take off all this metal work and take off the whole thing. So let's you know a button and tell the mechanical like add people to you know put the to model that in the little cut out and tell the piece of B person it has to go right there and brilliant. Alright way we can get this thing off we do I think it's yep it all comes off. oh we're in like Flynn look at that.

That's a nice design. one huge board does everything brilliant. Haven't mucked around with multiple boards. I'll tell you what right off the bat.

I'm pretty impressed with this thing. Well laid out and you know they haven't spared too much room inside this thing. So yeah, hats off. Obviously we got our white shielded front ends here.

Two channels, two channels. not sure if we can get that, can't. Oh yeah, yeah. I think we might be able to get the can off there.

Excellent. I'm obviously our analog to digital converters because they're right next to the cans here so we'll have our probably a differential input. so we'll have our differential driver from the analog front-end going in there a DC and that'll be a dual channel. one gig sample per second.

Our converter and of course the way they get the two gig samples per second is to interleave the two. So if this is channel 3 & 4, if you've only got channel 4 on, then it can use both channels of the ADC both to measure channel 4. So you get your two examples per second. But if you turn on channel 3 and channel 4 at the same time, you only get it halfs down to one gig sample per second.

So of course the trick with these are four channel ones. If you want to use two channels and get the highest sample rate possible and why wouldn't you is to use channels 1 & 3 or 1 & 4, or 2 & 3 & 2 & 4. and these other two monsters here. these are obviously our acquisition FPGA so they've got one per two channels there.

This other beast up here, this will be our display processor. And yep, here's our LCD ribbon cable going off so that we that'll be just handling the display updating So it's you know it. This is the reason why they can get 140,000 waveform updates per second because they're dumping the data directly from the acquisition and FPGAs here and dumping it straight to the display instead of going through the analogue devices DSP which we'll take a closer look at over here. and of course that's a black fin.

DSP It will be running the OS for this thing which could be some embedded Linux or whatever it's you know, a flavour of OS that's actually running and it's handling all the user interface and the Ethernet and everything else. and the cursors and the unit front panel and all that sort of jazz and the USBs and things like that. But all the acquisition dumping the data is done goes from ATM goes from ADC to acquisition FPGA straight onto your display processor and then BAM straight out to your display. Now you can easily tell your logic analyzer stuff because there's lots of it down here and we've got individual they will be comparators so they've prepped.

It's going to be a decent mixed signal logic analyzer I Believe being able to set the threshold levels and stuff like that and it's a dead giveaway that's right down near the mixed signal connector right down here, so that's interesting. We'll take a closer look at that. We've got our waveform at generator over here, so that's what these relays are doing that's near the are being put. The aisles probably coming from this lattice Cpl D or FPGA up here, so that's probably doing that business unless there's another processor on the other side of the FPGA or something on the other side of the board.

So if we have a look at the 2000 X board and then we merge the image over to the lesser 1000 X model, much much cheaper, you'll notice the lack of a dedicated display FPGA whereas we've got one here and bingo, it's there. One minute and it's gone the next. You can see actually a BGA footprint there, which is unpopulated and from a thermal performance point of view, we've got our event on the back here. Our fan is blowing outwards like this.

so this is the outlet fan and the inlet fan and the inlets are here and Tada some along the edge here. It's good that they put them at the bottom like this draws the air over this board, over the heat sinks and then out like this. If you put them at the top, that would have been, you know it's not quite as efficient as if you put a mat in at the bottom of the air comes through the bottom there. Nice.

We've got ourselves a little x-ray sticker here. What that's for is that it indicates that they've actually x-rayed this after the board's been assembled. So their x-ray in for the BGA parts to make sure that they're all hunky-dory All the balls on there assaulted. So nice.

Somebody's done the chicken in just in case you weren't convinced that these three FPGAs and sidling have levelled up and their design their own. Asics Now well look dead giveaway. FPGA There's our JTAG header and they've only got the one here, so that would be a daisy chain in all three, which is very common. So what have they got under there? I Don't know.

Zi links are out here. Oh, who knows. I could? Yeah. I'm not going to go to the effort to hook up a Jtag boundary scan thing and actually get the IDS out of them.

Yeah, they're just grunty FPGAs and coupled onto each one of the acquisition. FPGAs is two of these little puppies micron with their bloody part numbers. Anyway, they do have a little part number decoder on their website and that is I won't bother reading you the number I'll just give you the skinny. It's a two gig bit Ddr3 sdram as you'd expect.

So that's our 256 Meg byte because it's an 8 bit converter 250 Meg samples. So that seems to be plenty at 256 megabytes per channel. So 4 of those you know, one per channel is more than enough. so I wouldn't expect to find secondary ones on the bottom side of the board right next to our display.

FPGA Here is a net Seoul s might you might think NIT So who's that? Do they make a network in Ethernet chip? No, this is a SRAM So this is a 18 megabit SRAM so it's 1 Meg times 18 bits and you can bet your bottom dollar that is going to be used for the intensity grader display on this thing. The 256 levels and all that sort of jazz has to be SuperDuper quick. And that's why they've got an SRAM in there. And on the other side of that, they've coupled on a Samsung one gig bit Ddr3 memory as well.

so that's an interesting combination of those two there. And of course, you'll note the length matching traces all in there. Nice little Wiggles I Love Wiggles Wiggle Wiggle. So right.

There is a lot of grunt inside this thing. We've fought these three big Daddy FPGAs and absolute bucket loader memory on this thing. So yeah, they're not mucking around. but you need this.

You know this. Probably there might be. you know, two hundred bucks worth of parts there. Now as far as the ADC goes, I Don't know.

Can anyone decode that? Pin out the 1000x Sieglin Oscilloscope which we are tore down previously it had a I he tight converter in there. Whether or not this is a he light one or one of those national semi parts or something like that I don't know. Ooh, pair little clock. Jen that's an ATF 4360.

Check out the datasheet. I'll link it in down below all the it's all about the loot components of course. Oh, it's a PLL By the way, it's as you'd expect a frequency synthesizer only up to 1800 megahertz. So they're obviously not generating the 2gig clock with this thing because as I said, they don't need it.

The ADC over here is a one gig sample per second. and they're doing interleaving inside the ADC so they own in so that would be generating the one gig sample per second. No clock, not 2 gig samples per second. But as I said, it's all about this loop stability.

the loop components, selecting the right setting, the coefficients inside the registers isn't in inside this thing and that's what Rygel famously are screwed up in the 2000 model was that they famously got that wrong and oops, but thankfully they couldn't They could dump. Yeah, pretty much fix that in that software just by reprogramming the registers in here. And of course everyone wants to see under the hood of the N log front end. and today there it is.

It looks like we have not four identical channels because look, they're slightly different. and channels I think this is channel 2 and Channel 4 here have this chip here slightly different layout so that'd be a driver. We'll go in there and like a typically they'll have like a 7, 4, HC you know, 5, 9, 5 or something like that just to drive some digital lines and things like that. but otherwise they're Of course the analog arm sections are absolutely identical for relays, which is a more than you typically find in a front-end I believe a couple of trim parts because they've got the cutout holes in the metalwork - and get in there and it just treated.

tweak the AC performance of this thing. and well, there's not much to. there's gonna be a bit more on the other side of course because well, there's not a lot in there. but yeah, probably using a discreet fit front end and things like that.

but this would be a 300, this would be the 300 megahertz front end even I'm pretty sure even the 70 megahertz model would be having have the 300 megahertz hardware and it's just crippled in software so they've probably got. You know either they're doing it in software or like some of the earlier I Go units, they are actually doing it as a filter in that hardware on the front end. Yes, I will provide high-res photos on Eevblog Comm for those playing along at home, but there you go, no much to it until I Take the whole mainboard out. might see a bit more on the underside.

What some of the solder ins a bit? How are you doing around here? It's not going to show up on here, but if I look at it under my mantas in the right light, it really is this flux residue around there. It's almost as if you know somebody's had a hack at that. There may be at that little diode there. So hmm for Act A diode? perhaps? Hmm.

And something that comes to mind is that they actually hand do these to get the different bandwidth. But yeah. Anyway, all the usual suspects are here: Analog devices A DAT 370 variable gain amplifier Seven fifty megahertz. Not particularly stellar performer, but it does the business for all your different I gain ranges and stuff like that.

And then you've got your LM H6 double V - that's a differential app. 1.5 gig. Perfect for an ADC driver and that's exactly what it's used for. It'll be directly driving.

the ADC doesn't have to go too far. Look, it's only got to go just across the border there. There we go. Maybe you can see that flux residue a bit better that caps? Just yeah.

Not very nice at all. Mmm. and I was right on the money for the M4 HC 595 that's the jellybean, you know. serial to parallel latched driver of choice.

And another look on the cap on the second channel. they're just too much solder paste. Yeah, it's not a coincidence this diode here. how I reckon has been hand done on all four of the channels in the exact location there it is.

See those and if I go over to this channel. Here there it is again look and the cap next to it. Something's going on. There Are they tweaking those? Is this a hardware tweak for the different bandwidths? Perhaps.

Hmm. And you can see the difference between the two hundred Megahertz 1000 X model on the left and the 300 Megahertz Mm X that we're looking at. Here on the right, you can see that the 300 megahertz model actually has those two trimmer caps in there. higher frequency, more parasitics, more issues to deal with, more high frequency stuff that you have to go and just trim some stuff.

so extra relay in there. a bit more complicated for the 300 megahertz version, but similar parts, similar right drivers and variable gain amp. and yep, I was right on the money for the comparators for the digital section there a DC Mp5 6 2's we've seen those before and their high speed pickle work comparators and they've got a whole bunch of those for all 16 channels. And there's our deck for our arbitrary waveform generator.

It's a beurre Brown yes these days. Anyway, a DAC at 9:04 II that's a 14 bit duck. And specifically, you know one of the typical applications is for our generators like this. So yeah, bang on if we have a look at the rest of the stuff around the generator.

Nothing hugely special, just a bunch of relay switching and Op-amp action. I'm not even going to bother to look those up, but they there's the output resistor. There we go. 49.9 Oh, it's never quite 50.

I Always find that disturbing and what is your job there Mr. Little 5 pin Pin header. Hmm, let us see PLD down in there. I Love how it actually tells you it's a Si parody.

You don't even have to look up the part number for that puppy, so that's my guess would be that's doing the arbitrary waveform stuff. It's a fair bit away. but I guess you know there's the DAC down there. There's all your output amps and everything else.

but you know all your power supply is all tucked around in here. And oh, there's your Ethernet and USB stuff. By the way, I won't bother showing you that all your trigger out circuitry and stuff like that. Nothing fancy pantsy there to be going off to the keypad front panel and Bob's your uncle.

Couple of line drivers here and level converters, but there's our main application processor. The analog devices are Blackfin which we see in many, many scopes. So yeah, common as Mud, so they must know they've got a really good little niche market. Therefore, these are: Blackfin DSPs I Believe you know the reason that they choose a lot of expertise in not China with the Blackfin DSPs So yeah, that could have a really big hand in it.

Anyway, not much doing there at all. Won't go into business. Maybe there's like a serial output monitor or something that will you know console interface we can get. Here's a test interface for your um, the for the for the production testing and stuff like that.

But yeah, apart from that, we've pretty much covered everything I suspect so that's pretty much it for the main board. I Don't think I'm gonna bother to why I take it out. It seems to be a bit of effort to get. It's not as easy as some of the other scopes I've looked at, so I might just leave that there might be a couple of you know, some more passives and stuff on the bottom of the analog front end and not much doing.

They'll just be bypassing and and stuff on the bottom of the BGA's and not a not a huge amount extra. I Suspect I Think all the goodies are on the top here. Brilliant. I Just noticed someone's at a crack at this before.

I did almost 7 watts standby power. You gotta be kidding me. Believable. You fight a bloody Pluto on seven watts and during operation we're looking at about 40 watts.

their power factor of 0.65 and there's no apparent power for those playing along at home. Well, it works. Beauty These apparently have lids in them. Don't bloody well see him.

Ah man. Tim has and that's it for the teardown? No. I'm going to resist the temptation and not play with it for this video. It's just a teardown video.

Walk away Dave Walk away from the camera. Walk away. Catch you next time. Hi! Welcome to our first impressions! Review of the new Sieglin SDS 1000 X-series oscilloscope.

Quite excited about this one. There's been a lot of anticipation because its feature set and value for money looks pretty darn impressive. Believe there's only like a couple of people in the world who have got one of these puppies, so you can order it now, but nobody's actually got stock yet. it's coming very, very soon.