With no internal PLL to generate a higher internal frequency than the 25MHz MCLK, that 1MHz waveform looks a bit too smooth for an unfiltered 1MHz output. Bruce
On Friday, 18 November 2016 5:12 PM, Richard (Rick) Karlquist <rich...@karlquist.com> wrote: Trying to figure out what "Iout Full Scale" means on the AD9832. Some time nuts may have used this one. On page 7 of this doc: http://www.analog.com/media/en/technical-documentation/user-guides/UG-313.pdf It shows the AD9832 output as 572 mV peak to peak across 300 ohms. This works out to 1.9 mA peak to peak current through the resistor. But Rset on the board is 3.9K, which is supposed to give a value for so-called "Iout Full Scale" of 3.878 mA. I would have thought (just guessing) that peak to peak output current would be equal to Iout Full Scale, but it appears to be only half of that. Can anyone clarify this? Rick _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.