Other Parts Discussed in Thread: CC2541
Using SmartRF Studio 7 to control CC2541EMK, I am controlling the LNAGAIN. If I change one of the three LNAs to 0dB, is that LNA bypassed or is the gain changed?
thanks
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From page 331 in http://www.ti.com/lit/ug/swru191f/swru191f.pdf setting the LNAGAIN register set the gain to 0 dBm.
As can see from the register names the LNA has different gain stages.
I believe the NF will change but not sure if it's relevant since when the gain is turned down the input signal is strong.
What is the background for the questions?
I found a E2E thread that indicate that NF is ~8.5 dB for CC2541.
What is the background for the questions? What are you trying to implement/ calculate?