Debug Board Isolator

We tested the board with the main power supply 220VAC. Here is the result:

Today at work, i got a chance to use some nice instruments at the labratory where i work. I did some measurements on the #DebugBoard Isolator and Voltage Translator TX signals.

I used the Keysight oscilloscope DSA91304A (13Ghz a40GSa/s) and the power supply Keysight N6705.
Yeah, those instruments are too much for this type of measurement, but they are the only ones that are available for me :D

I did the eye diagram at 3 Mbaud and at the minimum and maximum voltage level, here are the results:

Debug Board Isolator at 1,8V:

Debug Board Isolator at 5V:

Debug Board Voltage Translator at 1,2V:

Debug Board Translator at 5V:

The result seems pretty good!

After selling the previous version of the #DebugBoard i made a new version of the PCB with some small changes:

• New type of USB connector
• Clarence increased from 4mm to 4,8mm

Here some photo of the new version.

Finally we made the new PCB release with the 4mm clarence, the rest of the board is not changed.

For who is interested, on Tindie is possible to buy some of this board.

Unfortunately we discovered a problem with the PCB layout.
The clearance was not meeting the requirement for the high voltage insulation.
For this reason we made a new PCB layout with 4mm clearance, enough for isolating up to 1kV.