 |
Post Aw30craq7A0Wzz0JQu by [email protected] |
 |
More posts by [email protected] |
|
Post #Aw30craq7A0Wzz0JQu by [email protected] |
|
0 likes, 1 repeats |
|
|
|
I need a good filter to turn a square wave from an ard... ardmega 128 into a ni… |
|
|
|
Post #Aw30qs15KykgMjxWqm by [email protected] |
|
0 likes, 1 repeats |
|
|
|
From the controller is a 5V square wave and the audio out is a 1V sine-like wav… |
|
|
|
Post #Aw31fMtumgOydBgVrk by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr You'll want your filter transition band to be start and end at… |
|
|
|
Post #Aw31fN24IMvL2TV1Zg by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr There is a trick though that can spread that range out a bit, whic… |
|
|
|
Post #Aw31fN7jxHSdK49YPo by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@ChuckMcManis I think I just want one tone. I was pondering a DAC or R-2R, but … |
|
|
|
Post #Aw31nQdYmEPWXFsVn6 by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@ChuckMcManis oh and its audio band. |
|
|
|
Post #Aw32elTI2u9oV3VVPU by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr If you're doing just one tone you can do it with a 2nd order b… |
|
|
|
Post #Aw32elZffBGGoqUbM8 by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@ChuckMcManis I dont need it to be that pure, but I really want to just keep it… |
|
|
|
Post #Aw3tYCGNKcz38WDgMi by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr Is this a variable frequency?To go from square to sine you are bas… |
|
|
|
Post #Aw3tYCN6vaN5TPN3rc by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@diyelectromusic I have never been good at filters, I know that using -3db for … |
|
|
|
Post #Aw3toFYsps0403X0r2 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr a lot depends of what freq range you want. Like, if it's a nar… |
|
|
|
Post #Aw3toFh2LYWQPLLWYy by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@danja I want the filter to just be passives, there should be enough headroom..… |
|
|
|
Post #Aw4KqHgyaCLzwuVlLc by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr No, well I just tend to make it up and use an online low-pass filt… |
|
|
|
Post #Aw4KqHp85ssMMCKH3Y by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@diyelectromusic @RueNahcMohr pwm seems a good suggestion if possible. |
|
|
|
Post #Aw4KqHvVi9yofzJN0C by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@poleguy @diyelectromusic The avr would be running a webpage too, so I dont wan… |
|
|
|
Post #Aw50QLxGJ9VniPRk5Q by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr This will turn a 440Hz square wave into a nice sine wave. Using th… |
|
|
|
Post #Aw50QM5lnWJk8nQXLc by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@ChuckMcManis I love it!, but on this particular project I don't really hav… |
|
|
|
Post #Aw51Vtb4kqCXSNH9we by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr You can look here: https://en.wikipedia.org/wiki/Butterworth_filte… |
|
|
|
Post #Aw51VtiAKTs9oMaozo by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@ChuckMcManis I hoped to avoid inductors, but will accept having to go there. :] |
|
|
|
Post #Aw528hKyGmvEjAFGsa by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr Mumble, mumble, opamp, mumble, mumble 😃 |
|
|
|
Post #Aw528hQdvhSX0ktnii by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@ChuckMcManis your right, but this is just a tone to test the audio level of sp… |
|
|
|
Post #Aw6Rt92gHsnpzBtWSW by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RueNahcMohr Mega has nocycles left to give you something closer to desired r… |
|
|
|
Post #Aw6Rt993u9uIIyscPA by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@dave_is_me If you generate audio with the cpu, you cant have any sample latenc… |
