k140ud13

Geo · #1 03-11-2016, 04:34 PM

Hi.
I want to find (if there is) the schematic of the IC--- k140ud13. Also i am interesting for an American similar ic. As you maybe have read at IGA-1 thread this IC is a MDM type ic.
Many workable lrls uses the MDM method to catch the phenomenon. So i want to "see" the shematic of this IC and maybe to design a known commercial lrl with this ic so to see if will have better results.

Regards

WM6 · #2 03-12-2016, 10:20 AM

In Cyrillic:

К140УД13

http://kiloom.ru/microsxema/k140ud13.html

http://www.chipinfo.ru/dsheets/ic/140/ud13.html

You can try with this possible west replacement (seem no really direct replacement):

uA727M then AD8628, AD8230, LTC1250, LTC2053, etc. (Look for datasheets on "description", in which words "included" should be something as "zero-drift").

Inner design of К140УД13 you can find here:

http://studopedia.org/2-131501.html

Look at drawing Рис. 1.109

Geo · #3 03-12-2016, 12:07 PM

Thank you WM6.
I believe that uA727M etc are not compatible withUD13 because they have not input for demodulator etc....
All the other that you have post are fine

Geo · #4 03-14-2016, 10:43 AM

WM6, is it easy to find and the schematic of K140UD17?????
I want to compare it with OP07.

Regards

WM6 · #5 03-14-2016, 02:33 PM

Hi Geo

According data from Russian sites replacement for К140УД17
should be OP07E, OP77

http://pblock.narod.ru/info/ou_w.html

http://www.chipinfo.ru/dsheets/ic/140/ud17.html

http://elektrotanya.com/files/forum/...Analogok_0.pdf

Not found inner structure schematic.

Geo · #6 03-14-2016, 04:43 PM

Thanks wm6.
All info gives the OP-07E for similar so no reason to looking further for schematic. This that surprise me is the low bandwith.