I'm interested in creating low frequencies using a high-frequency oscillator. For example - using a 12Mhz oscillator to create 1Khz, 2Khz waves.

I've been said that using a Binary adder it could be accomplished.

Anyone could please help me to understand how this can be done? Also, I should use a low-pass filter for Sine(ish) waves. How does this come into place?

The target is to create about 5 distinct frequencies and "stream" them out of the circuit. The circuit should be very cheap - so no mC could be used.

Many thanks for the help :)

I'm interested in creating low frequencies using a high-frequency oscillator. For example - using a 12Mhz oscillator to create 1Khz, 2Khz waves.

I've been said that using a Binary adder(oops) counter it could be accomplished.

Anyone could please help me to understand how this can be done? Also, I should use a low-pass filter for Sine(ish) waves. How does this come into place?

The target is to create about 5 distinct frequencies and "stream" them out of the circuit. The circuit should be very cheap - so no mC could be used.

Many thanks for the help :)