RF

Feb 24, 2010 3 Replies
J

Hi,



I am trying to put together a wireless system fo the first time. I was told to use a wireless chip nRF24z1 for both transmitter and receiver. I need to layout the PCB for this chip first. So, I found the following note



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But I can not understand the following issue



The note says that all layouts should be fitted with a single ended connection to a 50ohm antenna by using a differential to single ended matching network. What does it exctly mean?



Thanks John


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A

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The device has ANT1 / ANT2 differential antenna connection pins.

The network comprising L1, L2, L3, C5 and C6 connects this to the single-ended "RF" port.

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A

When you have one side of the circuit live and the other is ground - like coax - that's single ended.

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