1
vote
2answers
111 views

180 Phase shift for oscillator

I am currently learning how to design/build a crystal radio receiver, transmitter and have a question for the 180 degrees phase shift for the carrier amplifier/oscillator system. I commonly see this ...
2
votes
2answers
147 views

Voltage Controlled Oscillators

I want to know how to calculate the gain of a VCO. I've looked online and see that there exists a formula $$K_{VCO} = \dfrac{f_1-f_2}{V_1-V_2}$$ but it would seem that this result would give ...
4
votes
4answers
2k views

Internal or external oscillator

I always use the internal oscillator that pics have as I have never found the need to run anything at higher frequency than 8 MHz (which is the fastest the pics I use tend to be able to go). Are there ...