- #1
Jdo300
- 554
- 5
Hello All,
I have a board that needs to send a high-speed digital signal to a second board about 5-6 inches away. The signal itself is just a 5V square wave with a variable pulse width and frequency that could go as high as 3MHz. The second board has an isolated supply and I plan to route the signal to it using a digital isolator (IL610 to be exact). I was first thinking about driving the signal single-ended, but then thought about using a differential signal since I heard that it has much better noise immunity.
The isolator is located on the destination board and I was thinking about using some kind of line driver (differential line driver?) to drive the signal through some twisted-pair wire to the second board. My question is do I need to be concerned about transmission line effects when transmitting in differential mode? does there need to be a termination of some kind like in a single-ended setup or something different?
Thanks,
Jason O
I have a board that needs to send a high-speed digital signal to a second board about 5-6 inches away. The signal itself is just a 5V square wave with a variable pulse width and frequency that could go as high as 3MHz. The second board has an isolated supply and I plan to route the signal to it using a digital isolator (IL610 to be exact). I was first thinking about driving the signal single-ended, but then thought about using a differential signal since I heard that it has much better noise immunity.
The isolator is located on the destination board and I was thinking about using some kind of line driver (differential line driver?) to drive the signal through some twisted-pair wire to the second board. My question is do I need to be concerned about transmission line effects when transmitting in differential mode? does there need to be a termination of some kind like in a single-ended setup or something different?
Thanks,
Jason O