Divide by 1.333 or Multiply by 0.75 circuit

Goldsphere said:

Hey that's really awesome! Thanks heaps em2006.
I will try it out as soon as I can.

Click to expand...

There is one error (on the divide by 4), and one improvement that I would recommend (on the divide by 3). On the divide by 3, the pulse from the AND gate is generated by propagation delays and is therefore narrow. I couldn't find a minimum pulse width spec for the CD4046, so I think the modification I made will be safer.
In the divide by 4, it was a divide by 2, again with a sliver as the pulse to the 4046. I changed it to divide by 4, and fed back a 50% duty cycle to the 4046.
I can't vouch for the correctness of the rest of the circuit.

audioguru said:

Yes of course. You connect an output to the reset pin then it counts up to that pin. But each output is still only one clock pulse wide.

Click to expand...

True, but the phase detector II on the 4046 doesn't care.