netbug
Junior Member level 2
Hello all,
I am designing a VCO running at 80 MHz. Can you help me in two very basic doubts ?
1 - Measure input impedance of the oscillator. Should I insert an AC source. Where should I have to open the loop ?
2 - Calculate the current's density of the circuit. For eg. plot a graph ID/W, that is for each value of W (1u : 10u), sweep the current (0.5 mA : 5 mA). The goal is to calculate the optimum J=ID/W.
Best regards all,
Pedro Cardoso
I am designing a VCO running at 80 MHz. Can you help me in two very basic doubts ?
1 - Measure input impedance of the oscillator. Should I insert an AC source. Where should I have to open the loop ?
2 - Calculate the current's density of the circuit. For eg. plot a graph ID/W, that is for each value of W (1u : 10u), sweep the current (0.5 mA : 5 mA). The goal is to calculate the optimum J=ID/W.
Best regards all,
Pedro Cardoso