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8 жыл бұрын

What's inside the Micsig 100MHz 1GS/s isolated dual channel handheld oscilloscope?
What mystery ADC does it use?
David2 also makes an appearance.
www.micsig.com/en/product_deta...
Forum: www.eevblog.com/forum/blog/eev...
Datasheets:
www.silabs.com/Support%20Docu...
www.ti.com/lit/ds/symlink/cdcm...
www.intersil.com/content/dam/I...
www.ti.com/lit/ds/symlink/tms3...
www.issi.com/WW/pdf/61NLP_NVP1...
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Пікірлер: 172

@blindfoldeddesign8266 8 жыл бұрын

Hey Dave! Just found your EEVblog, I'm completely hooked! Keep up the great content! -new Fan from Syracuse, New York

@benadams6332 8 жыл бұрын

For the signal routing, it would be interesting to see if you can detect a difference in the noise floor between the two channels. If you can and its got an FFT function it would interesting to see the spectrum.

@electronicsandcode 8 жыл бұрын

Nice teardown as always - thank you Dave! The Pin 2 of the Silicon Labs F330 (@24:18) seems to miss some Solder. :D

@nomadic_rider42 8 жыл бұрын

Nice teardown, @Dave.

@Roobotics 8 жыл бұрын

The "unsoldered pin" and "fallen out pin" is a cheap way to do DIY keying now you can't plug in certain revs of the board or accidentally reverse polarity in testing cables. Also the 0505S is indeed a 5v to 5v converter but the 'S' stands for single supply, so not a dual +/-5.

@Kanglar 8 жыл бұрын

Happy Back to the Future day Dave!!!

@elektronikcz01 8 жыл бұрын

Wow, new video already ?? Thank you crazy Australian Guy !!

@DJignyte 8 жыл бұрын

There's a second unsoldered pin shown at 22:00. Great teardown video by the way, looks like a handy tool to have.

@vankiu 8 жыл бұрын

Always awesome videos, would not mind more repairs. Thanks :)

@FFcossag 8 жыл бұрын

"The penalty you pay when you go for a BGA FPGA" - untethered poetry.

@EEVblog 8 жыл бұрын

+FFcossag I never knew I had poetry in me...

@frankalvarez7387 8 жыл бұрын

+EEVblog Hi Dave can you make a video how to read burned resistors ? or explain me cuz i am in trouble Thanks :]

@Teth47 8 жыл бұрын

+Frank Alvarez You'd probably have to use the components it's connected to to infer possible resistance values, then try them until one works properly...

@heathwellsNZ 8 жыл бұрын

+FFcossag I liked the "coz these things aren't magic" comment myself! (at approx 20:53)

@douro20 8 жыл бұрын

The TMS320 is still quite a capable DSP. In the early days of production they were used in high-end 3D graphics systems and even found their way into Midway's first 3D video game hardware where they served as both the main processor and the geometry engine at the same time.

@necessaryevil8615 8 жыл бұрын

Silabs makes 8051's with interesting peripherals for test gear. There is a thread about a µV/mΩ meter kit which uses a C8051F350. This is a brother of the microcontrollers in the video, it has a has a 24-bit adc and a 1-128x pga on board!

@BKofficer23 8 жыл бұрын

EEVblog. I appreciate the work you put into these teardowns. I'm no electrical engineer, and likely never will be, but I find this stuff fascinating, and you're slowly teaching me.

@darraghomeara7653 8 жыл бұрын

Checked in to see if you had a back to the future special :) Maybe a flux capacitor teardown??

@niceguy60 7 жыл бұрын

A cool feature with this scope is that is has a math function that perform series/parallel inductance and capacitance reactance calculation for inputted component values..

@typedef_ 8 жыл бұрын

Dave, you should do a teardown of a servo amplifier (motor driver). It would be cool !

@Techmatt167Official 8 жыл бұрын

Happy back to the future day!

@jeanious2009 8 жыл бұрын

Love how you had trouble assembling it, happens to me from time to time and I just get very annoyed when it does happen. So I know how you must of felt when it kept happening to ya'., lol.

@yaghiyahbrenner8902 8 жыл бұрын

Dave you should you a fundamental Fridays session explaining memory types and how to read the datasheet. SHARC is still the leader in DSP :D

@pratherat 8 жыл бұрын

Happy Back-to-the-Future Day!

@voltlog 8 жыл бұрын

Is this a demo unit? The soldering quality on those inputs could improve during production and also they could correct the bodges so it looks all nice.

@mikeselectricstuff 8 жыл бұрын

Didn't see a current shunt or fuse - but has a current range - what's the spec ? Maybe those mosfets are an electronic fuse ?

@jucano 8 жыл бұрын

Very nice videos. There is any posibility of making any video regarding the bad usb killer ? And maybe made a circuit where you can plug any usb device and get a reading of the voltages to avoid putting a usb killer in a computer ?

@jmhjelm 8 жыл бұрын

A bit concerned with the missing solder under the F330 on one of the pins @24:00. Guessing it is a ground pin and the solder has gone in under the circuit to a ground tab. It is not pretty.

@IgnacioMoya 8 жыл бұрын

I would really like to hear more about Dave2 3D printer board project, perhaps a video could be made about it? Thanks!

@power-max 8 жыл бұрын

That thing seems to be a mixed bag, great design but poor manufacturing I guess! Lots of little things you pointed out, like the 2 little transformers (or common mode chokes) one looking a bit broken, C123 is missing and the solder did not reflow right, that bit of solder shard shorting 2 pins on that 8051 near the end, etc! I wonder if it would have even been fully functional before you took it apart!

@setitthen 8 жыл бұрын

How does this hand held scope compare to the 20 year old ths720 series hand held scopes. It would be interesting to see a tare down of one of these.

@Streamtronics 8 жыл бұрын

I wonder, in digital scopes when you move the trace up and down is the scope only moving the trace on the display or is it changing some analog offset value before the ADC? Also as a German, what's wrong with calling it a multifunctional device? I mean it is multifunctional, no? Does it just sound weird or...

@digerttm 8 жыл бұрын

+EEVblog I've never seen those tiny flush ICs before (the ones around the TI chip). Is that just the casing or is there something up with those?

@ntoobe 8 жыл бұрын

I would have expected David II to be David 1, and you the Dave 0 ;)

@thekaduu 8 жыл бұрын

Closing the scope back... tripple face-palm worthy ;)... Been there, it pissses me off every time I do it.

@alwayscan21 8 жыл бұрын

My question is, (and ,maybe I missed it, but is there a current cutoff, if is there is a thermal overload, should the fan fail or something like that? Anybody notice anything

@BogdanTheGeek 8 жыл бұрын

+EEVblog how can you say that they aren't cutting corners when you see that most of the solder joints are rubbish?

@DaruoshAghajaney 7 жыл бұрын

Is that supercap similar to the one used in the fluke 298/7 causing problems?

@Dennis-mq6or 5 жыл бұрын

I was waiting for you to test the actual frequency response...... Did you forget?

@Kennynva 8 жыл бұрын

I would love to have any of your things like a scope..since i have Never had one...I envy you for having all those toys....have a good day, or night...great video...

@koelie17 8 жыл бұрын

Cool Cool can't wait to finish the video ;)

@voltare2amstereo 8 жыл бұрын

+koelie17 settings - playback speed - 1.25x (html5 player only)

@uzaiyaro 7 жыл бұрын

Seems like the 410 is the same sort of thing but not isolated. It's also much cheaper. I'm looking into a first scope for automotive use, so it's unlikely to be seeing above 15v or so. The built in meter function is quite interesting too. Do I really need an isolated scope? What are the advantages/disadvantages?

@TilmanBaumann 8 жыл бұрын

I wonder why they did not just run the coax a few cm longer before they go into the board. Assuming that coax is more noise resistant than board traces.

@RobertSzasz 8 жыл бұрын

Properly terminating coax into pcb traces can take up enough space that its easier to run a proper pcb transmission line the extra distance.

@heman248 8 жыл бұрын

+Tilman Baumann Maybe he was tired.

@ConstantlyDamaged 8 жыл бұрын

+Tilman Baumann Maybe they already had enough layers in the board to isolate the signal properly, what with the MILLIONS of micro controllers and the big BGA(caution, some exaggeration).

@proluxelectronics7419 8 жыл бұрын

could the front end adc be running in paired and use the two spare data lines for overflow?

@DeathtrapCult 8 жыл бұрын

Yayyy teardown!

8 жыл бұрын

The extra bit on the common mode choke could there purely for Pick&Place purposes.

@Graham_Langley 8 жыл бұрын

+Armandas Jarušauskas Agreed.

@ianc4901 8 жыл бұрын

I wonder if MicSig watch this and take note ?

@Shadowdncer 8 жыл бұрын

Does the (ground?) copper to the left of the ADC at 11:20 look a bit shoddy (bad etching or something)?

@szabolcsmate5254 8 жыл бұрын

23:52 SIL C8051F330 Pin 2 (Ground) not soldered properly?

@xoxoXoieoxox 8 жыл бұрын

ok i have a 1958 heathkit o-12 scope i was wondering if there was any way to get a reading from a Jacobs ladder u have been trying but the Jacobs ladder really screws with everything in my lab and the scope is not even giving me a reading i think is true the trace just goes from scanning to like this messed up blob in the middle of the screen any ideas??

@LoMe64 8 жыл бұрын

The unsoldered pin is just a cheap key to prevent the connector to be plugged in the wrong way. Have seen that a couple of times.

@Graham_Langley 8 жыл бұрын

+Lothar Merl Ah, you beat me too it.

@martinda7446 8 жыл бұрын

Fantastic stuff as usual. PS Watch Earth 2 available on VEEHD for free for 70s Apollo style nuclear bomb filled action. Bet this one passed you by. Some of it is excellent, some funny of course. Thanks Dave.

@suzannemccutcheon8741 2 жыл бұрын

Well made easy to use

@userPrehistoricman 8 жыл бұрын

320 solder it, am I right?

@MariuszNmntechcom 6 жыл бұрын

How would it compete with Siglent SHS1062 which would you choose ?

@ngarewyrd 8 жыл бұрын

so, how many times did you need to rebuild it? I figured that you fixed the unsoldered pin before you put it back together the first time... But yeah, just hasn't been your day, it seems

@ho2sorellestupide 8 жыл бұрын

@26:06 what is that smd component soldered that way between the two pins of that chip? it looks awful.

@Graham_Langley 8 жыл бұрын

That pin in the header socket (J57?) looks like an improvised polarising key. Shouldn't be needed in a PCB to PCB arrangement like this, but they may use ribbon cables somewhere in testing/faultfinding. That missing top on the choke is probably there only to give a flat surface for pick and place, nothing functional.

@PIXscotland 8 жыл бұрын

I'm sure I saw a spare screw on the desk when you finished... ;-)

@timbersrcadventures 4 жыл бұрын

Is that a cap or a battery on the cover image I’ve had them lie about caps before and just put in a battery and labeled it as a cap.

@Maxisokol 8 жыл бұрын

21:05 - I laughed so hard when I noticed that.)) I thought I'm the only person guilty of soldering pasive components directly to the ICs, but apparently it's Ok even for a few thousand dollar devices. xD

@hikaru-live 8 жыл бұрын

I spot lots of MC34063 action, yeah... I have a few of those in my M102v5 production design, and by using slightly oversized inductors and massively oversized caps I managed 10mV or less ripple on a 15V rail.

@Arek_R. 8 жыл бұрын

nice

@Madmax23419 8 жыл бұрын

Why have they not use a +-5cm longer coax cable? Coax is cheap and isolated.

@4IN14094 8 жыл бұрын

Design seem sound enough but QA is a problem.

@Arek_R. 8 жыл бұрын

Wow, Dave2 know something! xD

@proluxelectronics7419 8 жыл бұрын

mosfet discharge, caps range?

@Razor2048 8 жыл бұрын

Why can't they throw in a nice 2048x1536 display on it. For that astronomically high price, they need to at least use a more modern resolution for their display. It also should have more memory (e.g., 1GB per channel would do nicely).

@bloomtom 8 жыл бұрын

+Razor2048 2GB of SRAM? Are you mad? I'd say the display is fine, but for the price they should probably manufacture their product a bit better.

@krawutzimon 8 жыл бұрын

+Razor2048 hard to find industrial reliability grade displays at the higher resolutions. remember, this is not a toy.

@martinda7446 8 жыл бұрын

@28:30 I was laughing out loud. So funny. Easy to do ''haste pace'''etc

@TwinPeaksIndustries 8 жыл бұрын

+mart fart Should have used the Fail button there ^^

@omfgbunder2008 8 жыл бұрын

is that a zebra laser printer i see in the background?

@johndrachenberg2254 8 жыл бұрын

6:00 the corners of that chip are all broken. What can be inferred about the manufacturing process here?

@SetMyLife 8 жыл бұрын

+John Drachenberg I think that might be tooling marks from manufacture.

@JensAndree 8 жыл бұрын

Dodgy soldering for sure! If that is - like I think it is - a retail product and not a pre-series demo, then with those unsoldered pins and a few other suspecting bits I'd be pretty upset if I'd bought one. Personally I don't care how good something can be if they disregard things like QA and assembly inspection. I hope this video gave them something to act upon but I wouldn't spend my money on a Micsig product as it is now.

@OnEvenKeel 8 жыл бұрын

You seem impressed. But, the loose piece of solder, the unsoldered pin, and the "bodgered" resistors/caps make me surprised that it actually functions properly. Don't these defects scare you off, especially at a >$1000 price point?

@alynicholls3230 8 жыл бұрын

anyone else notice that "MICSIG" written on the back of the unit is in microsoft font.

@SproutyPottedPlant 8 жыл бұрын

David2 ❤❤❤❤

@calmarcalmar 8 жыл бұрын

ha, Dave Junior still there :)

@SeanStrongman 8 жыл бұрын

WELCOME TO BACK TO THE FUTURE !

@aptsys 8 жыл бұрын

+Sean Strongman Fuck off

@kingoftaurus 8 жыл бұрын

Seriously dude? There's no room for that kind of behavior on EEVblog. Get lost.

@3roomlab769 8 жыл бұрын

i am seeing a "404 not found" when clicking EEVblog. is the site down?

@roger6426 8 жыл бұрын

Same here - I was also checking comments here for the 404 Also I get a 403 In US

@davidvb3754 8 жыл бұрын

+Roger Yep, here too. Seems that Dave didn't pay the bills this month.... ;-)

@matthewrichardson828 7 жыл бұрын

I just bought a couple Siglent Chinese O-scopes. It's very good, and as an American I'm pretty worried that China will be not only making the cheap stuff, but the good stuff too. We're doomed. I recently used AD7799BRUZ ADC's on a recent NASA project. They are 24 bit ADC's (which is overkill for a lot of stuff), but super easy to use and very stable. For that matter I suppose the refresh rate is way too slow for a o-scope. I've been wanting to make a multimeter specifically for aviation applications and might dust them off for that.

@badwolf1984 8 жыл бұрын

DAVE, you a big BTTF fan, where was the DeLeorian Time Machine Taredown ?

@Arnthorg 8 жыл бұрын

5:58 seems like the processor is a clone.

@kingoftaurus 8 жыл бұрын

Lol!

@xartpant 8 жыл бұрын

Are these kind of boards designed by one person alone? They are complex.

@EEVblog 8 жыл бұрын

+xartpant Sure, as a professional PCB designer I've designed boards much more complex like this on my own. Usually it's a one person job. Does take time of course

@GothAlice 8 жыл бұрын

+EEVblog I'm sure the software these days can do a lot of the "grunt work" for you (matching trace lengths, etc.) I've seen one some time ago that produced weirdly organic-looking traces.

@teardowndan5364 8 жыл бұрын

+GothAlice Modern serial-parallel protocols (ex.: JESD204B) use word-level alignment at the MAC layer to eliminate the length-matching constraints between serial lanes. Expect the art of delay-matching multiple LDVS pairs to start dying off soon as more serial-parallel chip adopt word-wise re-timing between serial lanes.

@bernardlim2888 8 жыл бұрын

+xartpant it's hardly a one man show.

@JJayzX 8 жыл бұрын

Was expecting it to not turn cause you forgot the battery, lol.

@stonail665 8 жыл бұрын

Getting cold?

@DH-zi4ny 8 жыл бұрын

Are you the voice of Wheatly from Portal 2? Anyone agree?

@richfiles 8 жыл бұрын

Did you at least forget to put the screws in, so putting all the other bits you forgot to put back would be easier? :P I have had those days... You need something to just take apart and scrap... GREAT stress relief! :D

@SetMyLife 8 жыл бұрын

20:26 is that C123 ripped off? :O

@superdau 8 жыл бұрын

+Jaroslav Malec That looks weird. It doesn't look ripped of (you'd see some sharp edges in the solder then), but it doesn't look like it was never populated either (double negative on purpose ;) ). What really worries me though is, that the solder did not reflow properly on the whole pad. Many of the other solder joints look dull, too. So maybe they didn't heat the board long enough and if there was a cap on the pads it never reflowed correctly and just fell off when washing the board. Would need a second unit to compare, but doesn't instill a "quality" feeling at all.

@YuriLM 8 жыл бұрын

and take a look at r141

@SetMyLife 8 жыл бұрын

+superdau I must totally agree, it does look like improper soldering process.

@bernardlim2888 8 жыл бұрын

+Jaroslav Malec U41 a resistor on a SO8, this product is full of last minute work.

@SetMyLife 8 жыл бұрын

+Bernard Lim Indeed, it's everywhere.

@joblessalex 8 жыл бұрын

6:00 Altera CLONE! Obviously a fake.

@TheWP 8 жыл бұрын

+EEVblog Happy BTTF day. Sorry to hear about the movie theater plans - they have I and II showing here. I and III were probably the better ones.... "What the?!" Anyways, catch you next time! Edit: Of course, it has to do with the whole 'Oct 21, 2015' - facepalm

@kay486 8 жыл бұрын

Hi, I'm mr. Micsig. How can I help you?

@inthenameofjustice8811 8 жыл бұрын

Listening to an expert talk about a subject you know little about sounds like this: Erflob concracker spoodlewhiff napperzolg. Inflecamotive zarry bounding, fetzimter noogie splatwasher. Immertle goonknacker, comined tetraflunastypill, immernobsplurfer.

@pvc988 8 жыл бұрын

24:02 Dat solder joint...

@hombre4295 8 жыл бұрын

no translation...why?

@rooneye 8 жыл бұрын

Could you explain what "Jellybean" means please

@marshaul 8 жыл бұрын

It basically just means generic, off-the-shelf components. That is to say, components which are not application-specific; indeed, the type of components which are often not specified beyond value/tolerance and rating.

@DogsBAwesome 8 жыл бұрын

I try to watch the adverts to support the channel but that Tesco Mobile is too annoying for me

@rhkips 8 жыл бұрын

Despite our "Western" bias, the Chinese are perfectly capable of making good quality products. The problem is exactly what you see here: Quality costs money. If this scope were half the price of anything competing on the market, then it would be a no-brainer, but as it stands, the only thing to separate this scope from any other in the price range is the range of features it offers, and how those features meet the needs of the people buying it. Overcoming brand loyalty is a big challenge; hopefully Micsig can bring a lot to the table. :)

@-vermin- 8 жыл бұрын

The rather inconsistent quality control evident in this tear down perfectly justifies the bias.

@lasersbee 8 жыл бұрын

2:45.... Holy Crap.... I though my shop was a mess.... :o

@Zadster 8 жыл бұрын

It all looks very pre-release to me. Expensive stuff left in, screening cans left off, bodge components. Full of "yeah I wouldn't do it like that" design decisions. The enclosure design looks a bit 10-years-ago to be honest, it looked good then (although not sure about the colour) but a bit cheap now. Anyone else noticed how the logo looks an awful lot like the Microsoft logo typeface? Dave Jones drinking game update: Every time he says "no wuckers" take a small sip. See if you can stand up at the end of the video.

@handlebullshit 8 жыл бұрын

21:18 On the right is another bodge.

@lordmmx1303 8 жыл бұрын

Nice oscilloscope... but will it run mario? :D

@user990077 8 жыл бұрын

Will you please stop making videos for about, say, two months so I can catch up on my binge viewing? I'm only up to EEVBLOG #Two Hundred something.... I've learned so much the last month or so that my brain is getting full I think...

@MrMac5150 8 жыл бұрын

Lets do some repair videos.

@krzysztofmazurkiewicz5270 8 жыл бұрын

Hah the first thing i noticed on the battery is the CE logo. And its the China Export logo wchich is designed to look like CE logo fo equipment that matchec EU standards. Sneaky ;)