How to deal with AD 9361 TX pin2, if I don't use them? For example, Can I only let TX1B_P short to TX1B_N?(Did like this In a reference design)
Should I tie unused pins to 1.3 V?( AS datasheet said)
In reference design unused TX pin is shorted and tied to 1.3V
In FMCOMMS5 schematics i don't see it, can you point it exactly where you see.
And in FMCOMMS3 board the unused TX1B port is shorted and given to 1.3V
Yes ,In FMCOMMS5，TX2A seems not tieing to 1.3V.
Thank you for your help!
Please try to follow the signal it is connected as shown below
Sorry, I mean TX2B
If you search 1P3_TX2A_A in schematics it is connected to 1.3 V line
Sorry my mistake yes it is not connected to 1.3v.
It should be connected. Looks like naming convention issue it should be 1P3_TX2_A
You need to short and connect it to 1.3V as the internal structure requires 1.3V to properly terminate unused TX ports.
No need to have extra components to connect it to 1.3V as shown below( refer FMCOMMS3 reference schematics)
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