I would like to make a synthesizer, which make waveform by DDS (LFM in simple case) and make signal band by PLL (multiplying DDS signal band). Final carier frequency around 500 MHz - 1 GHz and band like 300-500 MHz. LFM speed around 300 MHz/ms
I choose AD5932 as DDS because it's cheap and simple, but PLL is a problem.
While reading Q&A i've notice that wideband VCO inside PLL could consist of multiple narrowband VCO and it makes frequency sweep almost imposible
I wonder if anybody ever done similiar device? Does any AD PLL have truly wideband integrated VCO?