I was about to go and learn common emitter amplifier configuration in details and the problem occurred right at the beginning of it. I have found this equation of calculating the C1 (capacitor that blocks DC component at the input of the junction transistor) for its value (it shouldn't be to high or too low (the capacitance) because it also puts on a high/low-pass filter on the input of the transistor).
So, I almost perfectly understand the whole equation but what I don't understand is how should I get the required capacitance for C1 from this calculation.
- low frequency break point of the filter
- resistance from R1, R2 resistors (from voltage divider) and the input resistance of transistor - in parallel manner
For C2 equation is the same except there is resistance of load instead of those parallel resistances mentioned before.