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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: Re: A question posted by Christine Tham on March 4, 2007 at 15:26:26:
HowdyYep, syncing the switching supply freq to the important local clocks can be useful (for example we did it in a video monitor to hide the power supply noise in the retraces.)
But if the switching supply freq isn't perfectly synced with the clock(s) in question you have to worry about beating and sometimes it's hard to vary it as fast you might need to if the incoming clock rate is changing... Also you obviously need to handle the edge cases like making sure that unplugging the DAC input doesn't cause the power supply to shut down :)
-Ted
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Follow Ups
- Re: A question - Ted Smith 16:13:26 03/04/07 (1)
- Hey, nobody said it was going to be easy - which is why I'm not volunteering to design it :-) (nt) - Christine Tham 16:21:06 03/04/07 (0)
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