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Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

8 x AK4490 with current output
8 x AK4490 with current output
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Old 11th September 2018, 04:15 PM   #31
nemantree is offline nemantree
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Thanks a lot Peter! Those the bits I've missed.


Anyway, DSD playback does sound a bit harsh, and there the cracks at the beginning of the tracks and at the changing play position. The only thing I suspect is the low quality of MCLK.
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Old 18th September 2018, 12:19 AM   #32
nemantree is offline nemantree
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Setting DSDSEL bits made 5.6 and 11M working. But
there are a lot of cracks an it loses the lock too often. I'm about to upgrade the MCKL oscillators and LDO on the AK4137 board.

Last edited by nemantree; 18th September 2018 at 12:21 AM.
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Old 18th September 2018, 07:56 AM   #33
Dimdim is offline Dimdim  Greece
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8 x AK4490 with current output
Is your I2S / DSD cabling up to spec? In this case, short and with proper ground returns?
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Old 18th September 2018, 05:20 PM   #34
nemantree is offline nemantree
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The I2S ribbon cable is ~6cm long with even ground wires. On the DAC board I2S is buffered by some 74 chip and then feeds into SiL isolators before AK4490s.
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