General > General Technical Chat
The Rigol DS1052E
<< < (38/166) > >>
rossmoffett:
Once I'm home and there's daylight I'll try hard to get a good shot of mine, there are significant differences on the bottom from that picture.. no potential filters though, I think.
flolic:

--- Quote from: rossmoffett on February 15, 2010, 10:10:49 am ---
OK, I think I have narrowed down what kind of chip the ADC driver is.  I thought I saw an extra pad on one of Dave's close-ups, which would have explained why I couldn't find an 8-lead package, but upon close inspection from top views I can't see that it would be the case.  Browsing the ADC drivers at the Analog Devices website seemed futile, until I checked a supplier.  These chips are available in packages not described on the AD website.  I noticed that the screen print around the part seems to be 3x3 mm.  This leads me to believe they must have some oddball part, but the PCB still looks like it would fit these two parts, which come with the squared edges.

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=AD8350ARMZ20-ND
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=AD8132ARMZ-ND

They are 900 MHz and 350 MHz respectively.  I'll have to crack it open again and take some measurements on gain and voltage to be sure which part it is, still could be any of the other 8 pin parts.  The version with the worst (feasible) bandwidth is the AD8137, with a bandwidth of 110 MHz.  The only lower ones clock at 38 and 30 MHz.  I can find it in a package with bevelled edges in 3x3 mm, but not with the square ones.

and.. here's the AD8138 in the package that's in the scope:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=AD8138ARMZ-ND

A 320 MHz part.

--- End quote ---

No. I think that ADC driver chip is in a LLP-8 package.
Maybe one of these?
http://www.national.com/ds/LM/LMH6552.pdf
http://www.national.com/ds/LM/LMH6553.pdf
rossmoffett:
Looks right to me, exact dimensions and all.  Pinout seems to match.
mckee:
Hello to everybody  my name is Thomas and I am writing from Germany, I was reading the forum as guest , but discussion is so interesting that I will add something . It happened that I bought  DS1022C few years ago, my original firmware was 1.03.02 , but I found on Chinese forum picture of this DSO with soft 03.07.01 so after digging the ne I found it as well with  name
DS1000 firmware , I updated my DSO yesterday and it seems working well, I did not seen any major changes thou.
If somebody need this firmware please write to me or let me know where to drop the file , it is 1.2M zipped so no fit as attachment.
Forum in chinese but with some pics of inside
http://www.ourdev.cn/bbs/bbs_content.jsp?bbs_sn=3428440&bbs_page_no=1&search_mode=4&search_text=zxwr7282&bbs_id=9999
If you guys needs some help with chinese it is no problem to translate, I read chinese .

My question is how to upgrade and if its possible to 1022CD , is it only matter of the adding LH1116 Logic analyzer module or something more?
Thank you for understanding, if I missed this info in previous pages ;D
Thanks for update.
rossmoffett:
There is no "Logic Analyzer" module installed there.

The button to enable the logic analyzer is cut out, but the pad for the button is still on the PCB.  If you slide the other buttons onto it and press, it will tell you that the module is not installed.  I don't know what that means, or how to make it think it's installed, but the header for the logic analyzer is on the board.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod