MCO – Analog modulation

The MCO has now a fully operational analog modulation input, allowing detuning from the digital setpoint, with still less than 0.5 cent error over a 1V/Octave scale. Other response curves (like volt per hertz) might be added if it fits in the memory.

Next: benches, pictures, videos and samples, of course!

The analog output shall be a 10Vpp centered Sawtooth wave. This is the basis for building other classical waveforms such as Pulse, Triangle and Sine. I am still working on keeping the output amplitude as independant of the frequency as possible, but so far it’s going on quite well.