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In the Forum: Didital Things
In the Thread: The Museatex Bidat pages.
Post Subject: Bits and my witsPosted by miab on: 2/9/2011
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Yes the Bidat does lock 48khz very well and so does the Idat-m. Something even more suprising and coming from someone that knows these dacs very well is that on a few samples of Bidat they even lock at 96khz! Alas I am not so lucky. Mine is 44.1 and 48 only. I downsamle 88.2 to 44.1 and 96 to 48 for simplicity of computer processing and the elimination of any potential issue's.
About bits. The datasheet for TDA1547 clearly states 108db of dynamic range for this chip which would be in line with a 18 bit dac. A 20 bit dac should in theory be capable of 120db. I'm not sure what to make of this. I have played the same tracks at both 16 bit and 20 bit and at this time I believe the 20 bit to have the slightest of advantages. I must admit that I might not be able to tell in blind testing at this point. 48khz vs 44.1khz is easy to tell though.
http://www.datasheetcatalog.org/datasheet/philips/TDA1547.pdf
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