chilidawg
Well-known member
- Joined
- Nov 27, 2013
- Messages
- 175
How do you connect a 5V TTL to FPGA logic input LVCMOS25? ???
I'm implementing DannyW's ADAT receiver code with my FPGA, but I bought the wrong optic receivers.
It's true that I can use them for S/PDIF, and get new 2.5V TTL receivers like the Everlight PRL135 series, but I just wanna know if there's a working solution that I can try.
I read about this issue in a forum, and the poster suggested a couple of tricks like using a limiting resistor or a diode in series, but he also mentioned that he's not sure if they are suitable for a data transfer rate beyond 1MHz (ADAT is faster than that)
I'm implementing DannyW's ADAT receiver code with my FPGA, but I bought the wrong optic receivers.
It's true that I can use them for S/PDIF, and get new 2.5V TTL receivers like the Everlight PRL135 series, but I just wanna know if there's a working solution that I can try.
I read about this issue in a forum, and the poster suggested a couple of tricks like using a limiting resistor or a diode in series, but he also mentioned that he's not sure if they are suitable for a data transfer rate beyond 1MHz (ADAT is faster than that)