OK, that is a helpful piece of information. What you seek is a VCO, implemented with CMOS tecnology, the produces a squarewave output. Would you prefer to start with a higher frequency and divide it down to your desired range, or would you prefer to have a lower frequency reference that your VCO would be phase locked to?Thankyou for your reply. The frequency range is 45Mhz- 55 Mhz The purpose is to recover clock from digital signal.
Maybe, but the combination of frequency and bandwidth make it a pretty big ask. A VHF oscillator can be constructed and tuned with a varactor diode, but the required bandwidth could be a problem. Using a divider and a lower frequency reference or a higher frequency oscillator with a digitally programmable divider makes getting the bandwidth you require a much more reliable proposition. Perhaps somebody has already done something similar to what you have requested, but I'm just not sure where I would want to start on such a quest.Can it be done without a frequency divider ? I mean can it be tuned to that frequency range?
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by Jake Hertz