Coust
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Hello everybody! I'm trying to understand what is going on with this oscillator.
I have a cross coupled oscillator with 2 BJT and a current source to bias transistors. The problem I have is that when I increase or decrease the current of this oscillator the frequency changes. Is it normal?
I know that negative resistance depends on DC bias point but I checked here (https://www.seas.ucla.edu/brweb/teaching/215C_W2013/VCOs1.pdf) that frequency only should depend on tank resonator components. What am I missing here?
Ty very much!
I have a cross coupled oscillator with 2 BJT and a current source to bias transistors. The problem I have is that when I increase or decrease the current of this oscillator the frequency changes. Is it normal?
I know that negative resistance depends on DC bias point but I checked here (https://www.seas.ucla.edu/brweb/teaching/215C_W2013/VCOs1.pdf) that frequency only should depend on tank resonator components. What am I missing here?
Ty very much!