hi, everyone
I want to do a project for zero-if GPS receiver RFIC, how do i start if i have the system specifications? how to select original schemetic for each unit component, such as LNA, Mixer et.al, thanks
At first you should find the main parameters of your receiver. The efficiency of a receiver are usually evaluated by two parameters, namely, selectivity
and sensitivity.
Then place the blocks according to the zero-if architecture and calculate the desired specs.
Finally simulate and correct your design by RF tools. ADS would be a good choice.
at present, I have the specifications, but i have not the specific component schmetic, such as LNA , mixer LPF et.al
in addition , I have the corresponding process lib too