Other Parts Discussed in Thread: CD4503B
Hi there,
My customer plans to use the following configuration to switch between full and half duplex mode with SN65HVD1473.
My question is actually about how to select a suitable mux/switch.
Since the common mode voltage of the data lines can be up to 12V, I'm looking at the CD405xB family.
However, it's Ron is 125 ohms (typ.) which seemed pretty large and I'm not sure if it affects the design of the termination resistance?
I'm thinking it as adding a lot more resistance on the cables so the termination resistance might also need to be increased?
Please correct me if I'm wrong and help recommend a suitable multiplexer!
Thanks!
Best regards,
Roy Hsu