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How to generate two distinct frequencies from a single circuit?
I want a circuit to generate two distinct frequencies(say one is 500 kHz and the other is 525kHz for instance)..How can I do this using a single circuit.?Can I use a single oscillator or crystal to derive two different frequencies?If so how and can anybody help me out with a circuit diagram please?
i want to design a FSK modulator using the generated frequency as the carrier wave....i require two frequencies as I want one as a transmitted carrier and one for reception...my design has a transceiver at both the ends..
2 Answers
- ?Lv 710 years agoFavorite Answer
I'm sure you could do this with a single oscillator and a phase lock loop with the necessary divided by N counters. However, it would probably be easier to use 2 separate oscillators.
- billrussell42Lv 710 years ago
What is your definition of "single circuit"? build two oscillators, connect them together via a mixer, that is one circuit.
What do you plan on doing with the two frequencies? If you are not careful, you will get modulation of the higher one with the lower one, specially if you try to combine the circuits. That is intermodulation distortion. Of course if you want modulation, that is different.
