Fourier would beg to differ. A square wave is composed of many (technically infinite) sine waves of different frequencies. The lowest of these has the same frequency as the square wave itself, all others have higher frequencies.
That said, this assumes a synthesized square wave... Often there is a 25 MHz clock (or similar high freq) somewhere on the chip and accessing that can get what you want. > On Aug 1, 2014, at 2:22 PM, "Sova" <[email protected]> wrote: > > That is sort of funny, you'd think it would be easier to generate fast square > waves compared to smooth sine waves. > > Sova > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Paul Stoffregen > Sent: Friday, August 1, 2014 11:36 AM > To: A discussion list for dorkbot-pdx (portland, or) > Subject: Re: [dorkbotpdx-blabber] Looking for input on oscilloscope > > > Stand alone DDS function generators also tend to have these same limitations. > :-( > > I can confirm the Siglent SDG5082, which is rated for 80 MHz with sine waves, > only goes up to 30 MHz for square waves. > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber _______________________________________________ dorkbotpdx-blabber mailing list [email protected] http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
