It would help greatly if you had a part number or a link to a datasheet so we can see if the VCO is "controllable" by a microprocessor. RF work at 2GHz. is not for the faint of heart. Do you have the test equipment to support these experiments?Oh sorry. Ok so basically I want to use a VCO and have it step up frequencies like starting at 500 mhz and go up to like 2000 mhz then go back down again then back up and so on... So the question is how do I code the microprocessor so that it will output voltage to the VCO so that the VCO changes frequencies in that pattern?
Well it does pretty much what its name implies. It converts a number in digital form to an analog voltage. If you change the value of the digital word that you write to the device then the analog voltage coming out changes as well.Oh umm.. well can you explain what the Digital to Analog converter does? and yes I realize that the VCO frequency range is not what I originally had. But I already got past that problem.