moro
Member level 3
Hello,
i have a circuit where i try to understand how bode plot works..
Bellow is the schematic, the opamp circuit has a Gain of 2,
I am feeding a 200mhz sinewave into the circuit, bellow is the phase and gain .
Phase
Gain
For 200mhz i have a phase shift of -19,98degrees, and a gain of 5.6dB.
When tring to compare the input waveform with the output form, i can see some phase shift between them
On the plot i have the initial time (t) and a given point on the signal period (t1).
VG1 (green) - 200MHZ 2Vp signal
VF1 (blue) - output signal.
.
For example i wanted to check the voltage at 1.8ns from the initial (t) for phase shift of -19,98deg on the output sine,how should i proceed?
I know the voltage on a point in the phase shifted sine is
U_point = U_peak * sin( 2PI * f * t + phi),
But how can i find the voltage if the peak is diferent? Because i want to measure the voltage phase shift in respect with my input sine which has a smaller amplitude.
My input sine has 1Vpeak, and the output sine has almost 2Vpeak?
I am a beginner in this "bode plotting" , just wanted to know if my assumptions are somehow correct
i have a circuit where i try to understand how bode plot works..
Bellow is the schematic, the opamp circuit has a Gain of 2,
I am feeding a 200mhz sinewave into the circuit, bellow is the phase and gain .
Phase
Gain
For 200mhz i have a phase shift of -19,98degrees, and a gain of 5.6dB.
When tring to compare the input waveform with the output form, i can see some phase shift between them
On the plot i have the initial time (t) and a given point on the signal period (t1).
VG1 (green) - 200MHZ 2Vp signal
VF1 (blue) - output signal.
.
For example i wanted to check the voltage at 1.8ns from the initial (t) for phase shift of -19,98deg on the output sine,how should i proceed?
I know the voltage on a point in the phase shifted sine is
U_point = U_peak * sin( 2PI * f * t + phi),
But how can i find the voltage if the peak is diferent? Because i want to measure the voltage phase shift in respect with my input sine which has a smaller amplitude.
My input sine has 1Vpeak, and the output sine has almost 2Vpeak?
I am a beginner in this "bode plotting" , just wanted to know if my assumptions are somehow correct