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cascode amplifier pnp npn
I’m looking at a design using a NPN cascade amplifier for good IP3. I read on internet that there is a rule of thumb in Sedra & Smith near page 536 that states, “1/4, 1/4, 1/4, 1/4 biasing rule to set up bias resistors”. My copy of Sedra & Smith is dated. Does anyone have knowledge of this rule of thumb? I’m trying to decide how much Re and Vce to use.
I’m looking at a design using a NPN cascade amplifier for good IP3. I read on internet that there is a rule of thumb in Sedra & Smith near page 536 that states, “1/4, 1/4, 1/4, 1/4 biasing rule to set up bias resistors”. My copy of Sedra & Smith is dated. Does anyone have knowledge of this rule of thumb? I’m trying to decide how much Re and Vce to use.