At the request of a new community member.
CD4024 - Simple Frequency Divider and Sub Oscillator.
The schematic is not mine, I just made the layout.
Link to author and original schematic:
CD4024 - Simple Frequency Divider and Sub Oscillator
I’ve used this project a few times in the past as a simple bench circuit to test sub oscillator outputs for my VCOs. I had a paper layout and digitally redrawn it.
The layout here is the same as the one on paper, I just added the decoupler capacitor on the opamp and the 10uf capacitor on the supply input. I think everything will be fine.
Note: I believe that the output diodes are for divide clock, gate or trigger signals, I have never used the project for this purpose, so if you are going to use it as a sub oscillator you can exclude these diodes.
In the layout there is a note about the switch configuration, take a look.
If anyone ever builds it let me know so I can change the layout to VERIFIED status.
Any questions you can call me here.
Edit 1: Fixed the position of R3 (47K) in layout.
Fixed Switch type in B.O.M (SPDT on-off-on)
Diode D2 placed on the board.
Edit 2: Removed trace cut under TL072 between pins 4 and 5, this is necessary to
connect pin 4 to GND.
