Quick question regarding non-oversampling
I've a DAC I want to get running in higher bit rates like 96KHz but which has a max running frequency of 400KHz.
So, to get it to run in higher rates I will have to lower the oversampling multiplier or remove it completely.
Currently it uses Yamaha 3623B with NPC 5813APT into a D20400.
Audiotuning do a drop in replacement for the Yam receiver replacing it with a CS4214.
Can I then bypass the NPC completely and run data straight from the CD4214 to the D20400 without any intermediate interface? I do realise that there will then be no digital filtering but I'm not worried about that at this point, only in the experiment of running the d20400 at 20/96 or 20/192.
Any help would be much appreciated.
You cannot remove it, it does more than just filtering. Usually when it is used, performs a conversion too, because the DAC after it won't accept i2s signals (resulted from the receiver chips).
You need to play with the clock divider pins "CKDV" and "CKSL" to match the input rates.
Try pulling CKDV 'low'.
Thanks SoNic - I have the D20400 data sheet so I'll have look as to what signals it can take and how it currently is wired to the NPC on the circuit in the DAC..
I was talking about the OS filter: NPC 5813APT.
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