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miniDSP Low cost, modular Digital Signal Processor (DSP) kits for the DIYer from miniDSP.

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Old 15th March 2013, 04:30 AM   #21
twest820 is offline twest820
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Join Date: Jun 2009
Yeah, takes a while to get one's head around how a sigma-delta DAC works; means many folks never get there. A more interesting question is probably why the 2x4's noise floor isn't shaped; if it's all moved out past the 300kHz measurement bandwidth that's somewhat impressive. Did you happen to note which DACs the 2x4 and 2x8 were using? Last I checked the 2x4 was an ADAU1701 and there was one mention of the 2x8 using a CS42528.
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Old 15th March 2013, 09:48 AM   #22
uberting is offline uberting  United States
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Thank you for the response and the measurements. Also, your post (Reply #126 on page 7 of the thread at the previous link) was also helpful.


Thank you for the response as well. I also found the difference between the measurements of the 2x4 and the 2x8 interesting. Especially in the context of comparing the 2x4 to the 2x8.
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