Robert Harley is a writer from Stereophile.
Schiit Yggdrasil -- 21 bit?
Schiit says that Yggdrasil is a 21 bit DAC. But the DAC chips that they put in the device ( Analog Devices AD5791BRUZ, 2 per channel) are 20 bit with the error of plus-minus 0.5 LSB.
How can the DAC be 21 bit if the chips are 20 bit? Using two chips per channel does reduce the RMS voltage of the noise by a square root of 2. But how can you get to 21 bit from there?
Can someone please explain.
How can the DAC be 21 bit if the chips are 20 bit? Using two chips per channel does reduce the RMS voltage of the noise by a square root of 2. But how can you get to 21 bit from there?
Can someone please explain.
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- 145 posts total
Sorry, my error, Correction: Robert Harley, editor in chief of the Absolute Sound magazine. He also wrote The Complete Guide to High-End Audio. https://www.amazon.com/Complete-Guide-High-End-Audio/dp/0978649362 |
+1 Almarg - I agree that the statement in the link is rather ambiguous. It isnt clear if it really is greater resolution from the greater bit depth of an additional bit or just a higher signal per bit but still 20 bits... Summing 20 bits + 20 bits is still 20 bit levels as it is simply double the voltage value per bit compared to a single 20 but DAC chip. |
- 145 posts total