Posts: 2
Registered: ‎04-17-2017

Proper antenna load resistance Si4012



document, page 5:


>>Therefore the antenna load resistance in parallel with the Si4012 differential output resistance should equal 600 


document, page 12:


>>For the Si4010 chip configured for the maximum value of PA bias current, the load resistance at which clipping occurs is RIN ≈ 500 Ω. As a result, this value is often stated as being the optimal load resistance for the Si4010 chip, and is usually the design target for the input impedance of a loop antenna.




For the Si4012 chip, should I swap the 500 Ω with 600 Ω in Equation 26. ?