Products > Test Equipment
MS05000 Budget Logic Analyzer Probe Set Design
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Gandalf_Sr:
Sorry, that table was for the output levels, the table below is the one for the input levels.
Gandalf_Sr:

--- Quote from: TK on May 20, 2020, 01:56:33 pm ---Is it possible to set the threshold from the scope or you are limited to 3.3V and 5V logic only?  Does it work with ECL (-1.3V)?

--- End quote ---
Go back and read the first post; it explains that you can deal with positive going logic where the +ve rail is between 1.65 and 5.5V and there is a choice between 2 different voltage level translators which cover voltage ranges as follows.

1. 0.65V - 3.6V logic levels using a SN74AXC8T245 as U3 on the probe PCB
2. 1.6V - 5.5V logic levels using a SN74LVC8T245 as U3 on the probe PCB (and other minor component differences)

The definition of high and low on the inputs is purely a function of the voltage on VccA of the VLT IC, the setting on the scope can be ignored.
S. Petrukhin:
Hi, friends!

I'm create new topic with EasyEDA project low cost logic analyzer probe for Rigol MSO5000 here:
https://www.eevblog.com/forum/testgear/low-cost-logic-analyzer-probe-for-rigol-mso5000-easyeda-project/
knapik:
Woah, I finallly got my boards in the mailbox today :phew:. Thanks Santa
Gandalf_Sr:

--- Quote from: knapik on June 05, 2020, 11:23:06 am ---Woah, I finallly got my boards in the mailbox today :phew:. Thanks Santa

--- End quote ---
Wow! I posted them to you on April 15th
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