Question: Will Swapping a Balun's Inputs Break My Circuit

Wireless & IoT
1

I’m designing something using a ATmega128RFA’s built-in 2.4 GHz transceiver, based off the example application circuit provided in the datasheet, and also based on the SparkFun ATmega128RFA development board.

For my PCB layout, I can guarantee that the trace length of the differential RF output of the transceiver will be equal if I swap the inputs to the balun. In my mind, this shouldn’t break the circuit functionally, correct?

Here’s the two schematics to illustrate what I did differently

[](Imgur: The magic of the Internet)

2

Swapping the balun inputs to the chip shouldn’t make any difference. If the length of the tracks is short compared to the wavelength, I wouldn’t bother going to a lot of trouble making them equal, anyway.