[time-nuts] Count up/down DAC circuit

[Bruce Griffiths]

Steve Rooke wrote:
> As part of the current idea I have with the hockey-pucks, I'm thinking
> about feeding the D1 and U1 phase difference pulses out of an MC4044
> out to some circuit that could clock up and down an analog output
> which would ultimately go to the EFC of a ocxo, IE D1 pulses when the
> phase of one input signal is advanced and visa versa for the U1 pin.
> Anyone seen a circuit like that please?
>
> Thanks & 73, Steve
>   
Steve

It could be done using a  capacitive charge dispenser based circuit
feeding an analog integrator.

Bruce