1Hz timebase question

[(*steve*)]

When you say regulation....what should it be regulated to?

A constant voltage

The whole point is to stop the voltage varying as the oscillator will have some sensitivity to voltage.

Choosing a voltage regulator is a whole other topic. It depends on the range of input voltages, the current, etc.

 

[atollp]

I was just using 9 volts from either AAs or one 9 volt battery, do you think that's ok? haha this sounds like a stupid question but I'm curious.

 

[KMoffett]

atollp,
You never stated what your application is for the 1Hz clock.
Ken

 

[atollp]

A simple alarm clock project. I'm new to the 4000 series and wanted to introduce myself with a 7 segment project.

 

[KMoffett]

Unless you want the experience, and want to spend a lot of time tweaking the timing on a scratch-built crystal oscillator, I would recommend just using the hacked clock oscillator circuit I posted.

Ken

 

[atollp]

Ok, I'll look into that one first. Thanks, btw