fxxjssc
Member level 4
iip3 calculation
Dear all,
I know the expression of
P_iip3=(3P_in-P_im,in)/2;
it leads to
P_in=(2P_iip3+P_im,in)/3,
to get P_in,max, let P_im,in=F (noise floor).
P_in,max=(2P_iip3+F)/3.
There are two variables in equation, P_in,max and P_iip3.
In RF system design, which one should be calculated firstly?
My understanding is as following: usually we know what we
want to P_in,max, and it will make us to give a reasonable
P_iip3. I am not sure it's right. Does the standard will give
figures of P_in,max or P_iip3?
Thanks
fxxjssc
Dear all,
I know the expression of
P_iip3=(3P_in-P_im,in)/2;
it leads to
P_in=(2P_iip3+P_im,in)/3,
to get P_in,max, let P_im,in=F (noise floor).
P_in,max=(2P_iip3+F)/3.
There are two variables in equation, P_in,max and P_iip3.
In RF system design, which one should be calculated firstly?
My understanding is as following: usually we know what we
want to P_in,max, and it will make us to give a reasonable
P_iip3. I am not sure it's right. Does the standard will give
figures of P_in,max or P_iip3?
Thanks
fxxjssc