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donpacino
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Homework Statement
consider the cascading of two non identical amplifiers stages, each having a low-pass STC frequency response. STage 1 has a low freqency gain of ALF1 and a 3 dB frequency of f1. Stage 2 has a low frequency gain of ALF2 and a 3 dB frequency of f2. Derive a polynomial expression for f3dB, the 3 dB frequency of the cascaded amplifier, in terms of f1 and f2. Express f3dB in the following form.
a0 +a1f3dB+a2f23dB+...=0
find a0,a1,a2...etc
Homework Equations
Av=gain
f=frequency
Av=ALF1/(sqrt(1+(f/f1)))
The Attempt at a Solution
i truly don't know where to start. if anyone knows how to start the problem or has any tips to point me in the right direction it would be greatly appreciated.
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