Hi guys,
I'm trying to get the beat frequency (or something proportional to) from two digital signals but can't seem to be able to do it reliably. At the moment I have the two signals being fed into an XOR, the output averaged by a basic RC integrator and then I'm sticking it into a Schmitt trigger. The output is about right but with too much variation, I need quite a regular signal as it is then going to be sampled by a ucontroller for a sensitive application
Is there a better method of doing this?
Thanks,
Sam
I'm trying to get the beat frequency (or something proportional to) from two digital signals but can't seem to be able to do it reliably. At the moment I have the two signals being fed into an XOR, the output averaged by a basic RC integrator and then I'm sticking it into a Schmitt trigger. The output is about right but with too much variation, I need quite a regular signal as it is then going to be sampled by a ucontroller for a sensitive application
Is there a better method of doing this?
Thanks,
Sam