kommanche
Member level 4
Hello,
First of all I hope I am writing to correct destination. My question is as the following:
I am designing mixed signal board in which I use FPGA. I connect all the grounds (analog and digital) to a common ground plane and I want to feed 1.8 V analog and digital Vdd's from the same output a DC/DC converter. Although isolation is strictly adviced in datasheet, I think that feeding both from a common supply will not cause any problems because I already tied grounds together. May I have your comments please?
Thank you very much.
First of all I hope I am writing to correct destination. My question is as the following:
I am designing mixed signal board in which I use FPGA. I connect all the grounds (analog and digital) to a common ground plane and I want to feed 1.8 V analog and digital Vdd's from the same output a DC/DC converter. Although isolation is strictly adviced in datasheet, I think that feeding both from a common supply will not cause any problems because I already tied grounds together. May I have your comments please?
Thank you very much.