i am designing a single ended IF chain like one in the first picture and i have a question regarding the gain.
With the VGA i can sweep the gain from -11 to 22 and this is OK.
My question is: can i abruptly change the gain of the chain bypassing for example stage 9 (second picture) with an RF-relay or an RF switch? Does the abrupt change lead to stability problem?
Thanks in advance for your help