Digitally Generated Sine Wave

307

05:28:09

using two counters in a Hurz configuration to make a signal that approximates a sinewave.

published 10 years ago

roops1967

10 years ago

Great idea! Did you use a lot of tweaking to get the right resistor values or used some clever maths?

roops1967

10 years ago

Just noticed they're all standard values, neat :)

nikisalli

10 years ago

Yeaa we can replicate that because the resistors are standard values

Secuture

10 years ago

A true challenge is to build filter that make amplitude constant for wide range of output frequencies whose this gizmo can source without problem !

gasboss775

10 years ago

It is possible to make a very pure sinewave this way by placing a switched capacitor filter at the output and clocking the filter with the 555 clock signal.

Secuture

10 years ago

Switched cap quite good idea but make u design specialized IC dependent. (Building such from discrete is rather hardly not cool )

jpoulin0901

10 years ago

Cool circuit but I feel like this could have been clearer. I hate needless color coding.

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