ahmann
Newbie level 6
Hello guys! I am new to this forum and new to RF circuit design.
I am trying to design 10 Mhz Colpitts Crystal Oscillator with BJT.
My input is 5V DC and my output will be 10mW sinusoidal on 50 ohm.
I found a design from previous years and have been working on it, however, since I am not familiar with which component does which job, i cannot go any further. I am in desperate need of help to understand the circuit and meet the requirements.
Spesifically I need to find out how to determine component values. Is there a formula or are we just trying random values on Spice?
Any kind of help is appreciated. Thanks in advance!
I am trying to design 10 Mhz Colpitts Crystal Oscillator with BJT.
My input is 5V DC and my output will be 10mW sinusoidal on 50 ohm.
I found a design from previous years and have been working on it, however, since I am not familiar with which component does which job, i cannot go any further. I am in desperate need of help to understand the circuit and meet the requirements.
Spesifically I need to find out how to determine component values. Is there a formula or are we just trying random values on Spice?
Any kind of help is appreciated. Thanks in advance!