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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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In Reply to: USB technical issues/marketing and other stuff posted by John Swenson on December 2, 2004 at 15:44:05:
Remember most of these devices are going to use a clock multiplier PLL to generate the 48Mhz clock for the USB bus, so they can use an external crystal at 6mhz or so...And in addition to that, there is going to be the standard 8051 microcontroller inside there chugging away... and if we 'just' do a straight USB implementation the system ground will be shared with the computer, which may not be exactly ideal.
There's plenty of ways for digital noise to get into a USB DAC, they're not immune to the problems...
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Follow Ups
- No PLL involved... - Charlie G 23:51:00 12/02/04 (2)
- Re: No PLL involved... - John Swenson 15:00:06 12/03/04 (1)
- Re: No PLL involved... - Dave Davenport 19:03:04 12/03/04 (0)
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