10AX027E3F29E2SG Pin AB19 voltage (IO-AB19 / LVDs2J)

[Joseph_Wilger]

Pin AB19 has a low voltage. 

A good board has proper voltage waveform (1.8 Vdc high, and ≤ 0.3 Vdc low).
This is a waveform amplitude of 1.5 volts difference (1.8 Volt rail).

[FvM]

Hi,

why are you starting a new thread instead of continuing the previous one? https://community.intel.com/t5/Programmable-Devices/Unexpected-Voltage-output-on-pin-AB19/m-p/1711288

Anyway, now we know at least about used device. Still not clear how the pin is connected in your circuit? How much pull-down current is required by the external circuit to achieve expected 0V level?  A schematic would be preferred for explanation. Is it an off-the-shelf development kit or your own design? Which I/O standard is configured for the pin?

Regards
Frank

[Joseph_Wilger]

1. why are you starting a new thread ... I was unable to navigate my browser back to the original thread. There was also no eMail link I could use.

2. Still not clear how the pin is connected in your circuit? How much pull-down current is required by the external circuit to achieve expected 0V level? See below. 

3. A schematic would be preferred for explanation. I am unable to share the schematic - without and NDA in place. Certainly not on an open forum like this. 

4. Is it an off-the-shelf development kit or your own design? Our own design. 

5. Which I/O standard is configured for the pin? I will check.