How do i Divide the Frequency?

If i take my function generator output 1K hz what circuit can i build to divide this frequency down or UP?

Oscillators frequencys outputs 440hz how do i divide the oscillators frequency down or UP?

 

If you're using a TTL function you can do it with a counter. It will only allow you to divide by powers of two unless you use some other circuitry. If you're not using a TTL signal then it becomes a bit more complicated. You have to do a sort of mixing on your signals.

 

Yes i want to use Sine Wave inputs that divide the Sine wave frequency
what circuit would do this?
To divide the Frequency of Sine Waves?

Are Oscillators Frequencys Sine waves?

How do divide the oscillators sine wave frequencys?

 

You have to use what is called a mixer. You multiply the function that you want to change the frequency of by corresponding sine function. For example:

cos(2*pi*w*t)*cos(2*pi*b*t) = k*(cos(2*pi*(w - b)*t) + cos(2*pi*(w+b)*t))

You get the sum and difference frequencies VIA a trig identity.

k is just a constant term. Don't quote me (and with out getting a book) I think k = 1/2.

Good luck.

 

Frequency Divider Mixer?
Sine wave Divider Mixer?

 

A 'divider' is generally a digital device, so works with square wave inputs, and outputs a square wave.

Your main problem is you haven't given us any clue what you are trying to do?, so perhaps you should do that first?.

But for a clue to most solutions, think PLL (Phase Locked Loop).

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A 'divider' is generally a digital device, so works with square wave inputs, and outputs a square wave.


Are Flip flops analog frequency Dividers?

I'm trying to Divider UP and DOWN the freqency of a Sinewave how do i do this?

 

No, it's a digital divider - you don't get analogue dividers.

You can't 'divide' UP, only 'divide' DOWN.

But again, tell us EXACTLY what you're wanting to do!

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In the 'pure' view of things you cannot. It is physically impossible. This is because the pure sine wave contains only one frequency component: itself!

However, if you convert the signal to a square waveform (digital signal), you can use counters/dividers/logic to achieve a lower frequency (fractional values only though) square wave. You would then use a low pass filter (possibly with a few stages) to convert the signal back to a sine waveform.
To achieve a higher frequencies you would, once converting to a square wave, use a bandpass filter to isolate the higher frequency component you want, which if done well will produce a good sine waveform. Again, you can only get fractional (well actually integer) values.

What you are trying to do is quite limited. Once you have a square waveform you can get 3x 5x 7x 9x 11x etc. the base frequency, however these will all be of a lower amplitude, as the frequency component’s amplitude decreases as the frequency goes up. As for lower frequencies, you are less limited; you can achieve a quite comprehensive set of values. In all cases you will need to design a different filter for every different output frequency. Again in all cases you need to convert your sine waveform signal to a digital one first, it’s the only way, unless you invent some higher order dimension distorting device.

 

This sounds like the easiest way to go based on your very vague description of what you want.

A phase locked loop would take your main oscillator and make a second oscillator 'lock in' to it, by dividing the main oscillator's output by 2 (easy with a counter) the second oscillator will follow to this new frequency.

This still limits what is possible as far as frequency choice is concerned.
You mention 440 Hz - is this for music ? Do you want to generate semitones ? (there are much better ways to do that).

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This is what you need to use, I forgot to mention you need to filter out the component you don't want. It's not exactly a divider or a multiplier, but you can get the frequencies you want with this approach. However, it is very impractical.

 

So What are the frequency divider circuits called?
I can't find any network circuits that do this because i don't know the
names of them to do a function like this?

So you have to convert Analog signals to digital signals to divide or multiple the frequency?

 

For the THIRD TIME - TELL US WHAT YOU ARE WANTING TO DO!.

If you do that we can offer advice, as it is you're not asking relevent questions!.

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I want to take the output of my sinewave generator frequency and
divide it down or up


Sine Wave frequency 1K hz>>>Frequency divider circuit>>>500hz

Sine Wave freq 800hz>>>freq divider circuit>>>400hz


I might have to Convert the Sine wave to a Square wave to divider
or multiple the frequency

What Digital Flip flops,clocks,frequency dividers circuit is there that i can
build to do this?

 

Take the PLL, it will solve you all problems, and you will get a clear sin wave form...
If you have any questions about pll, ask...