Hello. Analog Devices Support Team,
I.m testing the evaluation board by connecting DC1941D and Arduino Nano.
Power source: Arduino's 3.3V (both VCC and VCCS)
Jumper connection: VTH1, used as Master, slow, PHA = 1, POL 0
I already have the DC1941C evaluation board also, and Arduino used the same. I only changed the version of the evaluation board.
However, there is a problem that communication is not possible in DC1941D, so when I checked, the voltage of IBIAS is measured at about 2.7V.
It seems strange because it exceeds the voltage range of the data sheet, but we didn't do anything else on the evaluation board.
Is there anything else I need to check?
The IBIAS on the DC1941C evaluation board that we already have measures 2V.
Is it just the breakdown of the LTC6820?
I'd appreciate it if you could give me your opinion.
Thank you.