Hello,
I am modulating control signal with Multivibrator circuit in CMOS technology. I use this formula (1/2.2RC) to find the frequency of modulated signal with multivibrator. But my simulation (result) and theoritical (calculation) of frequency is not matching. I am using CADENCE software tool for my simulation and have attached the circuit diagram along with simulation result for your refrence.
Calculation:
R=287k ohm.
C=27pF
Freq(1/2.2RC)=58.6KHz
Simulation:
Freq: 55.9kHz
Questions:
Am i using the right formula/Simulations for calculation?
Why is the difference between calculation and simmulation results?
How to get exactely matched both the results?
Please someone can sort out this problem.
Thanks.
I am modulating control signal with Multivibrator circuit in CMOS technology. I use this formula (1/2.2RC) to find the frequency of modulated signal with multivibrator. But my simulation (result) and theoritical (calculation) of frequency is not matching. I am using CADENCE software tool for my simulation and have attached the circuit diagram along with simulation result for your refrence.
Calculation:
R=287k ohm.
C=27pF
Freq(1/2.2RC)=58.6KHz
Simulation:
Freq: 55.9kHz
Questions:
Am i using the right formula/Simulations for calculation?
Why is the difference between calculation and simmulation results?
How to get exactely matched both the results?
Please someone can sort out this problem.
Thanks.
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