> I would expect a problem area would be filtering the PWM output. Anything > you don't filter out will turn into close in spikes. It might be fun to try > to measure them. > > 64K/72 MHz is about 1 ms. 32bits at 72 MHz is 60 seconds. > > Has anybody compared DDS style DACs with PWM? The idea is to spread the > pulses out to make the filtering easier. Instead of 1111100000, you would > get to work with 1010101010
Hal, The Z3801A 16-bit DAC is dithered at 102.4 Hz and LP filtered. Details and plots: http://leapsecond.com/pages/z3801a-efc/ /tvb _______________________________________________ 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.
